https://github.com/easyonaadit updated 
https://github.com/llvm/llvm-project/pull/194809

>From dd23131ba0b7d2b15635cb8da330704ee791f398 Mon Sep 17 00:00:00 2001
From: Aaditya <[email protected]>
Date: Tue, 28 Apr 2026 13:32:36 +0530
Subject: [PATCH 1/2] [AMDGPU] Support Wave Reduction for true-16 types - 1

Supporting true-16 versions of the reduction intrinsics
Supported Ops: `min`, `umin`, `max`, `umax`.
Supports only the iterative stratergy, DPP is yet
to be supported.
---
 llvm/lib/Target/AMDGPU/SIISelLowering.cpp     |   6 +-
 llvm/lib/Target/AMDGPU/SIInstructions.td      |  25 ++-
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll  | 152 +++++++++++------
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll  | 153 ++++++++++++------
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll | 143 +++++++++++++---
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll | 152 +++++++++++------
 6 files changed, 445 insertions(+), 186 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp 
b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 57d89a4aff836..5e377703b357e 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -6060,6 +6060,7 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
     bool needsSignExtension =
         MI.getOpcode() == AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16 ||
         MI.getOpcode() == AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16;
+    bool useRealTrue16 = ST.useRealTrue16Insts();
     // Create virtual registers required for lowering.
     const TargetRegisterClass *WaveMaskRegClass = TRI->getWaveMaskRegClass();
     const TargetRegisterClass *DstRegClass = MRI.getRegClass(DstReg);
@@ -6152,7 +6153,6 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
             AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::op_sel) != -1;
         bool hasOMod =
             AMDGPU::getNamedOperandIdx(Opc, AMDGPU::OpName::omod) != -1;
-
         BuildMI(*ComputeLoop, I, DL, TII->get(AMDGPU::V_READLANE_B32),
                 LaneValueReg)
             .addReg(SrcReg)
@@ -6712,11 +6712,13 @@ 
SITargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
   const DebugLoc &DL = MI.getDebugLoc();
 
   switch (MI.getOpcode()) {
+  case AMDGPU::WAVE_REDUCE_UMIN_PSEUDO_U16_t16:
   case AMDGPU::WAVE_REDUCE_UMIN_PSEUDO_U16:
   case AMDGPU::WAVE_REDUCE_UMIN_PSEUDO_U32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_MIN_U32);
   case AMDGPU::WAVE_REDUCE_UMIN_PSEUDO_U64:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::V_CMP_LT_U64_e64);
+  case AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16_t16:
   case AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16:
   case AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_MIN_I32);
@@ -6729,11 +6731,13 @@ 
SITargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
                            ST.getGeneration() >= AMDGPUSubtarget::GFX12
                                ? AMDGPU::V_MIN_NUM_F64_e64
                                : AMDGPU::V_MIN_F64_e64);
+  case AMDGPU::WAVE_REDUCE_UMAX_PSEUDO_U16_t16:
   case AMDGPU::WAVE_REDUCE_UMAX_PSEUDO_U16:
   case AMDGPU::WAVE_REDUCE_UMAX_PSEUDO_U32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_MAX_U32);
   case AMDGPU::WAVE_REDUCE_UMAX_PSEUDO_U64:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::V_CMP_GT_U64_e64);
+  case AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16_t16:
   case AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16:
   case AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I32:
     return lowerWaveReduce(MI, *BB, *getSubtarget(), AMDGPU::S_MAX_I32);
diff --git a/llvm/lib/Target/AMDGPU/SIInstructions.td 
b/llvm/lib/Target/AMDGPU/SIInstructions.td
index 42a99233132cb..2d0d9ce0ea1b7 100644
--- a/llvm/lib/Target/AMDGPU/SIInstructions.td
+++ b/llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -350,8 +350,10 @@ def : GCNPat<(i32 (int_amdgcn_set_inactive_chain_arg 
i32:$src, i32:$inactive)),
 // clang-format off
 
 multiclass
-    AMDGPUWaveReducePseudoGenerator<string Op, string DataType, ValueType ty, 
RegisterClass RetReg, SrcRegOrImm9 Reg> {
-  let usesCustomInserter = 1, hasSideEffects = 0, mayLoad = 0, mayStore = 0, 
UseNamedOperandTable = 1, Uses = [EXEC] in {
+    AMDGPUWaveReducePseudoGenerator<string Op, string DataType, ValueType ty, 
RegisterClass RetReg,
+                                    SrcRegOrImm9 Reg, True16PredicateClass 
T16Pred = NoTrue16Predicate> {
+  let usesCustomInserter = 1, hasSideEffects = 0, mayLoad = 0, mayStore = 0,
+      UseNamedOperandTable = 1, Uses = [EXEC], True16Predicate = T16Pred in {
     def !toupper(Op) #"_PSEUDO_" #DataType
         : VPseudoInstSI<(outs RetReg : $sdst),
                         (ins Reg : $src, i32imm : $strategy),
@@ -361,12 +363,14 @@ multiclass
 // clang-format on
 
 class WaveReduceOp<string OpName, string TypeStr, ValueType Ty,
-                   RegisterClass ReturnRegisterClass, SrcRegOrImm9 RC> {
+                   RegisterClass ReturnRegisterClass, SrcRegOrImm9 RC,
+                   True16PredicateClass T16Pred = NoTrue16Predicate> {
   string Name = OpName;
   string TypeString = TypeStr;
   ValueType VT = Ty;
   RegisterClass RetReg = ReturnRegisterClass;
   SrcRegOrImm9 Reg = RC;
+  True16PredicateClass T16Predicate = T16Pred;
 }
 
 // Input list : [Operation_name,
@@ -404,15 +408,20 @@ defvar Operations = [
   WaveReduceOp<"fsub", "F32", f32, SGPR_32, VSrc_b32>,
   WaveReduceOp<"fsub", "F64", f64, SGPR_64, VSrc_b64>,
 
-  WaveReduceOp<"umin", "U16", i16, SGPR_32, VSrc_b16>,
-  WaveReduceOp<"min", "I16", i16, SGPR_32, VSrc_b16>,
-  WaveReduceOp<"umax", "U16", i16, SGPR_32, VSrc_b16>,
-  WaveReduceOp<"max", "I16", i16, SGPR_32, VSrc_b16>
+  WaveReduceOp<"umin", "U16", i16, SGPR_32, VSrc_b16, NotUseRealTrue16Insts>,
+  WaveReduceOp<"min", "I16", i16, SGPR_32, VSrc_b16, NotUseRealTrue16Insts>,
+  WaveReduceOp<"umax", "U16", i16, SGPR_32, VSrc_b16, NotUseRealTrue16Insts>,
+  WaveReduceOp<"max", "I16", i16, SGPR_32, VSrc_b16, NotUseRealTrue16Insts>,
+  WaveReduceOp<"umin", "U16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>,
+  WaveReduceOp<"min", "I16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>,
+  WaveReduceOp<"umax", "U16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>,
+  WaveReduceOp<"max", "I16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>
 ];
 
 foreach Op = Operations in {
   defm WAVE_REDUCE_ : AMDGPUWaveReducePseudoGenerator<Op.Name, Op.TypeString,
-                                                      Op.VT, Op.RetReg, 
Op.Reg>;
+                                                      Op.VT, Op.RetReg, Op.Reg,
+                                                      Op.T16Predicate>;
 }
 
 let usesCustomInserter = 1, Defs = [VCC] in {
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll
index c42ab7fe702df..5ecbbe86191c7 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll
@@ -7,10 +7,14 @@
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX10GISEL,GFX1064GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=0 < %s | FileCheck 
-check-prefixes=GFX10DAGISEL,GFX1032DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select < 
%s | FileCheck -check-prefixes=GFX10GISEL,GFX1032GISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX1164DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck -check-prefixes=GFX1132GISEL %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
 
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
@@ -80,52 +84,100 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX10GISEL-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX10GISEL-NEXT:    s_endpgm
 ;
-; GFX1164DAGISEL-LABEL: uniform_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_clause 0x1
-; GFX1164DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_endpgm
-;
-; GFX1164GISEL-LABEL: uniform_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_clause 0x1
-; GFX1164GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1164GISEL-NEXT:    s_endpgm
-;
-; GFX1132DAGISEL-LABEL: uniform_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_clause 0x1
-; GFX1132DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
-; GFX1132DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1132DAGISEL-NEXT:    s_endpgm
-;
-; GFX1132GISEL-LABEL: uniform_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_clause 0x1
-; GFX1132GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1132GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1132GISEL-NEXT:    s_endpgm
+; GFX1164DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1132DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-TRUE16-NEXT:    s_endpgm
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.max.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll
index 66c19da5d5dbc..4c9a44c2edf18 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll
@@ -7,11 +7,14 @@
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX10GISEL,GFX1064GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=0 < %s | FileCheck 
-check-prefixes=GFX10DAGISEL,GFX1032DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select < 
%s | FileCheck -check-prefixes=GFX10GISEL,GFX1032GISEL %s
-; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX1164DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL %s
-; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select < %s | FileCheck -check-prefixes=GFX1132GISEL %s
-
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
 ; GFX8DAGISEL:       ; %bb.0: ; %entry
@@ -80,52 +83,100 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX10GISEL-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX10GISEL-NEXT:    s_endpgm
 ;
-; GFX1164DAGISEL-LABEL: uniform_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_clause 0x1
-; GFX1164DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_endpgm
-;
-; GFX1164GISEL-LABEL: uniform_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_clause 0x1
-; GFX1164GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1164GISEL-NEXT:    s_endpgm
-;
-; GFX1132DAGISEL-LABEL: uniform_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_clause 0x1
-; GFX1132DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
-; GFX1132DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1132DAGISEL-NEXT:    s_endpgm
-;
-; GFX1132GISEL-LABEL: uniform_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_clause 0x1
-; GFX1132GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1132GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1132GISEL-NEXT:    s_endpgm
+; GFX1164DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1132DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-TRUE16-NEXT:    s_endpgm
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.min.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll
index c729d1119da02..5b49959869428 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll
@@ -7,10 +7,14 @@
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX10GISEL,GFX1064GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=0 < %s | FileCheck 
-check-prefixes=GFX10DAGISEL,GFX1032DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select < 
%s | FileCheck -check-prefixes=GFX10GISEL,GFX1032GISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX11DAGISEL,GFX1164DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX11GISEL,GFX1164GISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX11DAGISEL,GFX1132DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck -check-prefixes=GFX11GISEL,GFX1132GISEL %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
 
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
@@ -80,17 +84,100 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX10GISEL-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX10GISEL-NEXT:    s_endpgm
 ;
-; GFX1164DAGISEL-LABEL: uniform_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_clause 0x1
-; GFX1164DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_endpgm
-;
+; GFX1164DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1132DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-TRUE16-NEXT:    s_endpgm
 ; GFX11GISEL-LABEL: uniform_value_i16:
 ; GFX11GISEL:       ; %bb.0: ; %entry
 ; GFX11GISEL-NEXT:    s_clause 0x1
@@ -103,16 +190,6 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX11GISEL-NEXT:    v_mov_b32_e32 v0, s2
 ; GFX11GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
 ; GFX11GISEL-NEXT:    s_endpgm
-;
-; GFX1132DAGISEL-LABEL: uniform_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_clause 0x1
-; GFX1132DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
-; GFX1132DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1132DAGISEL-NEXT:    s_endpgm
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.umax.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
@@ -3116,10 +3193,24 @@ define amdgpu_kernel void @poison_value_i64(ptr 
addrspace(1) %out, i64 %in) {
 ; GFX10GISEL:       ; %bb.0: ; %entry
 ; GFX10GISEL-NEXT:    s_endpgm
 ;
+; GFX1164DAGISEL-LABEL: poison_value_i64:
+; GFX1164DAGISEL:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-NEXT:    s_endpgm
+;
+; GFX1164GISEL-LABEL: poison_value_i64:
+; GFX1164GISEL:       ; %bb.0: ; %entry
+; GFX1164GISEL-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-LABEL: poison_value_i64:
+; GFX1132DAGISEL:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-NEXT:    s_endpgm
+;
+; GFX1132GISEL-LABEL: poison_value_i64:
+; GFX1132GISEL:       ; %bb.0: ; %entry
+; GFX1132GISEL-NEXT:    s_endpgm
 ; GFX11DAGISEL-LABEL: poison_value_i64:
 ; GFX11DAGISEL:       ; %bb.0: ; %entry
 ; GFX11DAGISEL-NEXT:    s_endpgm
-;
 ; GFX11GISEL-LABEL: poison_value_i64:
 ; GFX11GISEL:       ; %bb.0: ; %entry
 ; GFX11GISEL-NEXT:    s_endpgm
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll
index 6204232b7e7f4..4a9fde954573c 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll
@@ -7,10 +7,14 @@
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX10GISEL,GFX1064GISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=0 < %s | FileCheck 
-check-prefixes=GFX10DAGISEL,GFX1032DAGISEL %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1010 -global-isel=1 -new-reg-bank-select < 
%s | FileCheck -check-prefixes=GFX10GISEL,GFX1032GISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck -check-prefixes=GFX1164DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL %s
-; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck -check-prefixes=GFX1132GISEL %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=-real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
 
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
@@ -80,52 +84,100 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX10GISEL-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX10GISEL-NEXT:    s_endpgm
 ;
-; GFX1164DAGISEL-LABEL: uniform_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_clause 0x1
-; GFX1164DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v1, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_endpgm
-;
-; GFX1164GISEL-LABEL: uniform_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_clause 0x1
-; GFX1164GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1164GISEL-NEXT:    s_endpgm
-;
-; GFX1132DAGISEL-LABEL: uniform_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_clause 0x1
-; GFX1132DAGISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
-; GFX1132DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX1132DAGISEL-NEXT:    s_endpgm
-;
-; GFX1132GISEL-LABEL: uniform_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_clause 0x1
-; GFX1132GISEL-NEXT:    s_load_b32 s2, s[4:5], 0x2c
-; GFX1132GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1132GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1132GISEL-NEXT:    s_endpgm
+; GFX1164DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX1132DAGISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, s2
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-FAKE16-NEXT:    s_endpgm
+;
+; GFX1164DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1164GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132DAGISEL-TRUE16-NEXT:    s_endpgm
+;
+; GFX1132GISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_clause 0x1
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b32 s2, s[4:5], 0x2c
+; GFX1132GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    s_and_b32 s2, 0xffff, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX1132GISEL-TRUE16-NEXT:    s_endpgm
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.umin.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out

>From b4be9d54dbf69c6c95638ed8f076ce9673913ff7 Mon Sep 17 00:00:00 2001
From: Aaditya <[email protected]>
Date: Mon, 4 May 2026 14:07:53 +0530
Subject: [PATCH 2/2] Use `REG_SEQUENCE` instead of `COPY` Use SALU opcodes for
 all reductions

---
 llvm/lib/Target/AMDGPU/SIISelLowering.cpp     |  38 ++-
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll  | 226 +++++++++++------
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll  | 227 ++++++++++++------
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll | 226 +++++++++++------
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll | 226 +++++++++++------
 5 files changed, 632 insertions(+), 311 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp 
b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index 5e377703b357e..8a5107c2b0d88 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -5679,8 +5679,12 @@ static uint64_t 
getIdentityValueForWaveReduction(unsigned Opc) {
 
 static bool is16bitWaveReduction(unsigned Opc) {
   return Opc == AMDGPU::WAVE_REDUCE_UMAX_PSEUDO_U16 ||
+         Opc == AMDGPU::WAVE_REDUCE_UMAX_PSEUDO_U16_t16 ||
          Opc == AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16 ||
+         Opc == AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16_t16 ||
          Opc == AMDGPU::WAVE_REDUCE_UMIN_PSEUDO_U16 ||
+         Opc == AMDGPU::WAVE_REDUCE_UMIN_PSEUDO_U16_t16 ||
+         Opc == AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16_t16 ||
          Opc == AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16;
 }
 
@@ -5812,17 +5816,18 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
   enum WAVE_REDUCE_STRATEGY : unsigned { DEFAULT = 0, ITERATIVE = 1, DPP = 2 };
   MachineBasicBlock *RetBB = nullptr;
   unsigned MIOpc = MI.getOpcode();
-  auto BuildRegSequence = [&](MachineBasicBlock &BB,
-                              MachineBasicBlock::iterator MI, Register Dst,
-                              Register Src0, Register Src1) {
-    auto RegSequence =
-        BuildMI(BB, MI, DL, TII->get(TargetOpcode::REG_SEQUENCE), Dst)
-            .addReg(Src0)
-            .addImm(AMDGPU::sub0)
-            .addReg(Src1)
-            .addImm(AMDGPU::sub1);
-    return RegSequence;
-  };
+  auto BuildRegSequence =
+      [&](MachineBasicBlock &BB, MachineBasicBlock::iterator MI, Register Dst,
+          Register Src0, Register Src1, unsigned SubRegIdx0 = AMDGPU::sub0,
+          unsigned SubRegIdx1 = AMDGPU::sub1) {
+        auto RegSequence =
+            BuildMI(BB, MI, DL, TII->get(TargetOpcode::REG_SEQUENCE), Dst)
+                .addReg(Src0)
+                .addImm(SubRegIdx0)
+                .addReg(Src1)
+                .addImm(SubRegIdx1);
+        return RegSequence;
+      };
   if (isSGPR) {
     switch (Opc) {
     case AMDGPU::S_MIN_U32:
@@ -6058,7 +6063,9 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
     bool isFPOp = isFloatingPointWaveReduceOperation(Opc);
     bool NeedsMovDPP = !is32BitOpc;
     bool needsSignExtension =
+        MI.getOpcode() == AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16_t16 ||
         MI.getOpcode() == AMDGPU::WAVE_REDUCE_MAX_PSEUDO_I16 ||
+        MI.getOpcode() == AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16_t16 ||
         MI.getOpcode() == AMDGPU::WAVE_REDUCE_MIN_PSEUDO_I16;
     bool useRealTrue16 = ST.useRealTrue16Insts();
     // Create virtual registers required for lowering.
@@ -6107,6 +6114,15 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
         // reduction.
         Register PromotedSrc =
             MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
+        if (useRealTrue16) {
+          Register Hi16BitsReg = MRI.createVirtualRegister(SrcRegClass);
+          Register SuperRegTuple =
+              MRI.createVirtualRegister(&AMDGPU::VGPR_32RegClass);
+          BuildMI(BB, I, DL, TII->get(AMDGPU::IMPLICIT_DEF), Hi16BitsReg);
+          BuildRegSequence(BB, I, SuperRegTuple, SrcReg, Hi16BitsReg,
+                           AMDGPU::lo16, AMDGPU::hi16);
+          SrcReg = SuperRegTuple;
+        }
         BuildMI(BB, I, DL,
                 TII->get(needsSignExtension ? AMDGPU::V_BFE_I32_e64
                                             : AMDGPU::V_BFE_U32_e64),
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll
index 5ecbbe86191c7..1db3b5e02a653 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.max.ll
@@ -333,81 +333,157 @@ define void @divergent_value_i16(ptr addrspace(1) %out, 
i16 %in) {
 ; GFX1032GISEL-NEXT:    global_store_short v[0:1], v2, off
 ; GFX1032GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
-; GFX1164DAGISEL-LABEL: divergent_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1164DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164DAGISEL-NEXT:    s_brev_b32 s2, 1
-; GFX1164DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164DAGISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1164DAGISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164DAGISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164DAGISEL-NEXT:    s_max_i32 s2, s2, s4
-; GFX1164DAGISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164DAGISEL-NEXT:  ; %bb.2:
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1164GISEL-LABEL: divergent_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164GISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1164GISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164GISEL-NEXT:    s_brev_b32 s2, 1
-; GFX1164GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164GISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164GISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164GISEL-NEXT:    s_max_i32 s2, s2, s4
-; GFX1164GISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164GISEL-NEXT:  ; %bb.2:
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164GISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132DAGISEL-LABEL: divergent_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132DAGISEL-NEXT:    s_brev_b32 s0, 1
-; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132DAGISEL-NEXT:    s_max_i32 s0, s0, s3
-; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132DAGISEL-NEXT:  ; %bb.2:
-; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132GISEL-LABEL: divergent_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132GISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1132GISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132GISEL-NEXT:    s_brev_b32 s0, 1
-; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132GISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132GISEL-NEXT:    s_max_i32 s0, s0, s3
-; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132GISEL-NEXT:  ; %bb.2:
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
+; GFX1164DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-FAKE16-NEXT:    s_brev_b32 s2, 1
+; GFX1164DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_max_i32 s2, s2, s4
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-FAKE16-NEXT:    s_brev_b32 s2, 1
+; GFX1164GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-FAKE16-NEXT:    s_max_i32 s2, s2, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_brev_b32 s0, 1
+; GFX1132DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_max_i32 s0, s0, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    s_brev_b32 s0, 1
+; GFX1132GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_max_i32 s0, s0, s3
+; GFX1132GISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-TRUE16-NEXT:    s_brev_b32 s2, 1
+; GFX1164DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_max_i32 s2, s2, s4
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-TRUE16-NEXT:    s_brev_b32 s2, 1
+; GFX1164GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-TRUE16-NEXT:    s_max_i32 s2, s2, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    s_brev_b32 s0, 1
+; GFX1132DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_max_i32 s0, s0, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    s_brev_b32 s0, 1
+; GFX1132GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_max_i32 s0, s0, s3
+; GFX1132GISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.max.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll
index 4c9a44c2edf18..3db78875f4016 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.min.ll
@@ -15,6 +15,7 @@
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
 ; RUN: llc -mtriple=amdgcn -mcpu=gfx1100 -mattr=+real-true16 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
+
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
 ; GFX8DAGISEL:       ; %bb.0: ; %entry
@@ -332,81 +333,157 @@ define void @divergent_value_i16(ptr addrspace(1) %out, 
i16 %in) {
 ; GFX1032GISEL-NEXT:    global_store_short v[0:1], v2, off
 ; GFX1032GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
-; GFX1164DAGISEL-LABEL: divergent_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1164DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164DAGISEL-NEXT:    s_brev_b32 s2, -2
-; GFX1164DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164DAGISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1164DAGISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164DAGISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164DAGISEL-NEXT:    s_min_i32 s2, s2, s4
-; GFX1164DAGISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164DAGISEL-NEXT:  ; %bb.2:
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1164GISEL-LABEL: divergent_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164GISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1164GISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164GISEL-NEXT:    s_brev_b32 s2, -2
-; GFX1164GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164GISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164GISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164GISEL-NEXT:    s_min_i32 s2, s2, s4
-; GFX1164GISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164GISEL-NEXT:  ; %bb.2:
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164GISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132DAGISEL-LABEL: divergent_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132DAGISEL-NEXT:    s_brev_b32 s0, -2
-; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132DAGISEL-NEXT:    s_min_i32 s0, s0, s3
-; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132DAGISEL-NEXT:  ; %bb.2:
-; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132GISEL-LABEL: divergent_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132GISEL-NEXT:    v_bfe_i32 v2, v2, 0, 16
-; GFX1132GISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132GISEL-NEXT:    s_brev_b32 s0, -2
-; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132GISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132GISEL-NEXT:    s_min_i32 s0, s0, s3
-; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132GISEL-NEXT:  ; %bb.2:
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
+; GFX1164DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-FAKE16-NEXT:    s_brev_b32 s2, -2
+; GFX1164DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_min_i32 s2, s2, s4
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-FAKE16-NEXT:    s_brev_b32 s2, -2
+; GFX1164GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-FAKE16-NEXT:    s_min_i32 s2, s2, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_brev_b32 s0, -2
+; GFX1132DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_min_i32 s0, s0, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    s_brev_b32 s0, -2
+; GFX1132GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_min_i32 s0, s0, s3
+; GFX1132GISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-TRUE16-NEXT:    s_brev_b32 s2, -2
+; GFX1164DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_min_i32 s2, s2, s4
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-TRUE16-NEXT:    s_brev_b32 s2, -2
+; GFX1164GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-TRUE16-NEXT:    s_min_i32 s2, s2, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    s_brev_b32 s0, -2
+; GFX1132DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_min_i32 s0, s0, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    v_bfe_i32 v2, v2, 0, 16
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    s_brev_b32 s0, -2
+; GFX1132GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_min_i32 s0, s0, s3
+; GFX1132GISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.min.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll
index 5b49959869428..941ea62030cf9 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umax.ll
@@ -345,81 +345,157 @@ define void @divergent_value_i16(ptr addrspace(1) %out, 
i16 %in) {
 ; GFX1032GISEL-NEXT:    global_store_short v[0:1], v2, off
 ; GFX1032GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
-; GFX1164DAGISEL-LABEL: divergent_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1164DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164DAGISEL-NEXT:    s_mov_b32 s2, 0
-; GFX1164DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164DAGISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1164DAGISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164DAGISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164DAGISEL-NEXT:    s_max_u32 s2, s2, s4
-; GFX1164DAGISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164DAGISEL-NEXT:  ; %bb.2:
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1164GISEL-LABEL: divergent_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164GISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1164GISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164GISEL-NEXT:    s_mov_b32 s2, 0
-; GFX1164GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164GISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164GISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164GISEL-NEXT:    s_max_u32 s2, s2, s4
-; GFX1164GISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164GISEL-NEXT:  ; %bb.2:
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164GISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132DAGISEL-LABEL: divergent_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s0, 0
-; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132DAGISEL-NEXT:    s_max_u32 s0, s0, s3
-; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132DAGISEL-NEXT:  ; %bb.2:
-; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132GISEL-LABEL: divergent_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132GISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1132GISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132GISEL-NEXT:    s_mov_b32 s0, 0
-; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132GISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132GISEL-NEXT:    s_max_u32 s0, s0, s3
-; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132GISEL-NEXT:  ; %bb.2:
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
+; GFX1164DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b32 s2, 0
+; GFX1164DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_max_u32 s2, s2, s4
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b32 s2, 0
+; GFX1164GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-FAKE16-NEXT:    s_max_u32 s2, s2, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s0, 0
+; GFX1132DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_max_u32 s0, s0, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s0, 0
+; GFX1132GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_max_u32 s0, s0, s3
+; GFX1132GISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b32 s2, 0
+; GFX1164DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_max_u32 s2, s2, s4
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b32 s2, 0
+; GFX1164GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-TRUE16-NEXT:    s_max_u32 s2, s2, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s0, 0
+; GFX1132DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_max_u32 s0, s0, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s0, 0
+; GFX1132GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_max_u32 s0, s0, s3
+; GFX1132GISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.umax.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll
index 4a9fde954573c..aec64a15b2782 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.umin.ll
@@ -333,81 +333,157 @@ define void @divergent_value_i16(ptr addrspace(1) %out, 
i16 %in) {
 ; GFX1032GISEL-NEXT:    global_store_short v[0:1], v2, off
 ; GFX1032GISEL-NEXT:    s_setpc_b64 s[30:31]
 ;
-; GFX1164DAGISEL-LABEL: divergent_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1164DAGISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164DAGISEL-NEXT:    s_mov_b32 s2, -1
-; GFX1164DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164DAGISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1164DAGISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164DAGISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164DAGISEL-NEXT:    s_min_u32 s2, s2, s4
-; GFX1164DAGISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164DAGISEL-NEXT:  ; %bb.2:
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1164GISEL-LABEL: divergent_value_i16:
-; GFX1164GISEL:       ; %bb.0: ; %entry
-; GFX1164GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1164GISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1164GISEL-NEXT:    s_mov_b64 s[0:1], exec
-; GFX1164GISEL-NEXT:    s_mov_b32 s2, -1
-; GFX1164GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1164GISEL-NEXT:    s_ctz_i32_b64 s3, s[0:1]
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    v_readlane_b32 s4, v2, s3
-; GFX1164GISEL-NEXT:    s_bitset0_b64 s[0:1], s3
-; GFX1164GISEL-NEXT:    s_min_u32 s2, s2, s4
-; GFX1164GISEL-NEXT:    s_cmp_lg_u64 s[0:1], 0
-; GFX1164GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1164GISEL-NEXT:  ; %bb.2:
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v2, s2
-; GFX1164GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1164GISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132DAGISEL-LABEL: divergent_value_i16:
-; GFX1132DAGISEL:       ; %bb.0: ; %entry
-; GFX1132DAGISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s0, -1
-; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132DAGISEL-NEXT:    s_min_u32 s0, s0, s3
-; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132DAGISEL-NEXT:  ; %bb.2:
-; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132DAGISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX1132GISEL-LABEL: divergent_value_i16:
-; GFX1132GISEL:       ; %bb.0: ; %entry
-; GFX1132GISEL-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
-; GFX1132GISEL-NEXT:    v_bfe_u32 v2, v2, 0, 16
-; GFX1132GISEL-NEXT:    s_mov_b32 s1, exec_lo
-; GFX1132GISEL-NEXT:    s_mov_b32 s0, -1
-; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s1
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1) | instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132GISEL-NEXT:    s_bitset0_b32 s1, s2
-; GFX1132GISEL-NEXT:    s_min_u32 s0, s0, s3
-; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s1, 0
-; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132GISEL-NEXT:  ; %bb.2:
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s0
-; GFX1132GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
+; GFX1164DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b32 s2, -1
+; GFX1164DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-FAKE16-NEXT:    s_min_u32 s2, s2, s4
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b32 s2, -1
+; GFX1164GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-FAKE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-FAKE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-FAKE16-NEXT:    s_min_u32 s2, s2, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s2
+; GFX1164GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s0, -1
+; GFX1132DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_min_u32 s0, s0, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-FAKE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-FAKE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s0, -1
+; GFX1132GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_min_u32 s0, s0, s3
+; GFX1132GISEL-FAKE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s0
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b32 s2, -1
+; GFX1164DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164DAGISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164DAGISEL-TRUE16-NEXT:    s_min_u32 s2, s2, s4
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1164GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1164GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b64 s[0:1], exec
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b32 s2, -1
+; GFX1164GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1164GISEL-TRUE16-NEXT:    s_ctz_i32_b64 s3, s[0:1]
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_readlane_b32 s4, v2, s3
+; GFX1164GISEL-TRUE16-NEXT:    s_bitset0_b64 s[0:1], s3
+; GFX1164GISEL-TRUE16-NEXT:    s_min_u32 s2, s2, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1164GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s2
+; GFX1164GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1164GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s0, -1
+; GFX1132DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_min_u32 s0, s0, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX1132GISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX1132GISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX1132GISEL-TRUE16-NEXT:    s_waitcnt vmcnt(0) expcnt(0) lgkmcnt(0)
+; GFX1132GISEL-TRUE16-NEXT:    v_bfe_u32 v2, v2, 0, 16
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s1, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s0, -1
+; GFX1132GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s1
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1) | 
instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_bitset0_b32 s1, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_min_u32 s0, s0, s3
+; GFX1132GISEL-TRUE16-NEXT:    s_cmp_lg_u32 s1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s0
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.umin.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out

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