https://github.com/easyonaadit updated 
https://github.com/llvm/llvm-project/pull/194811

>From d508d976aca81803b4e5327afb0a565144058b3a Mon Sep 17 00:00:00 2001
From: Aaditya <[email protected]>
Date: Tue, 28 Apr 2026 14:35:01 +0530
Subject: [PATCH] [AMDGPU] Support Wave Reduction for true-16 types - 2

Supporting true-16 versions of the reduction intrinsics
Supported Ops: `add`, `sub`.
Supports only the iterative stratergy, DPP is yet
to be supported.
---
 llvm/lib/Target/AMDGPU/SIISelLowering.cpp     |  13 +-
 llvm/lib/Target/AMDGPU/SIInstructions.td      |   4 +-
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.add.ll  | 549 +++++++++++------
 .../CodeGen/AMDGPU/llvm.amdgcn.reduce.sub.ll  | 574 ++++++++++++------
 4 files changed, 761 insertions(+), 379 deletions(-)

diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp 
b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
index d912073f35bd9..f95d0479f7ed8 100644
--- a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
+++ b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -5645,6 +5645,8 @@ static uint64_t getIdentityValueForWaveReduction(unsigned 
Opc) {
   case AMDGPU::V_ADD_I16_fake16_e64:
   case AMDGPU::V_SUB_I16_e64:
   case AMDGPU::V_SUB_I16_fake16_e64:
+  case AMDGPU::V_ADD_I16_t16_e64:
+  case AMDGPU::V_SUB_I16_t16_e64:
     return 0x0;
   case AMDGPU::V_MAX_I16_e64:
   case AMDGPU::V_MAX_I16_opsel_e64:
@@ -5713,7 +5715,8 @@ static bool is16bitWaveReduceOperation(unsigned Opc) {
          Opc == AMDGPU::V_MIN_U16_t16_e64 || Opc == AMDGPU::V_MIN_I16_t16_e64 
||
          Opc == AMDGPU::V_MAX_U16_t16_e64 || Opc == AMDGPU::V_MAX_I16_t16_e64 
||
          Opc == AMDGPU::V_ADD_I16_e64 || Opc == AMDGPU::V_ADD_I16_fake16_e64 ||
-         Opc == AMDGPU::V_SUB_I16_e64 || Opc == AMDGPU::V_SUB_I16_fake16_e64;
+         Opc == AMDGPU::V_SUB_I16_e64 || Opc == AMDGPU::V_SUB_I16_fake16_e64 ||
+         Opc == AMDGPU::V_ADD_I16_t16_e64 || Opc == AMDGPU::V_SUB_I16_t16_e64;
 }
 
 static bool is32bitWaveReduceOperation(unsigned Opc) {
@@ -5906,8 +5909,10 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
     case AMDGPU::S_XOR_B64:
     case AMDGPU::V_ADD_I16_e64:
     case AMDGPU::V_ADD_I16_fake16_e64:
+    case AMDGPU::V_ADD_I16_t16_e64:
     case AMDGPU::V_SUB_I16_e64:
     case AMDGPU::V_SUB_I16_fake16_e64:
+    case AMDGPU::V_SUB_I16_t16_e64:
     case AMDGPU::S_ADD_I32:
     case AMDGPU::S_ADD_U64_PSEUDO:
     case AMDGPU::V_ADD_F32_e64:
@@ -5971,6 +5976,7 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
       }
       case AMDGPU::V_SUB_I16_e64:
       case AMDGPU::V_SUB_I16_fake16_e64:
+      case AMDGPU::V_SUB_I16_t16_e64:
       case AMDGPU::S_SUB_I32: {
         Register NegatedVal = MRI.createVirtualRegister(DstRegClass);
 
@@ -5985,6 +5991,7 @@ static MachineBasicBlock *lowerWaveReduce(MachineInstr 
&MI,
       }
       case AMDGPU::V_ADD_I16_e64:
       case AMDGPU::V_ADD_I16_fake16_e64:
+      case AMDGPU::V_ADD_I16_t16_e64:
       case AMDGPU::S_ADD_I32: {
         BuildMI(BB, MI, DL, TII->get(AMDGPU::S_MUL_I32), DstReg)
             .addReg(SrcReg)
@@ -6858,6 +6865,8 @@ 
SITargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
                            ST.getGeneration() >= AMDGPUSubtarget::GFX12
                                ? AMDGPU::V_MAX_NUM_F64_e64
                                : AMDGPU::V_MAX_F64_e64);
+  case AMDGPU::WAVE_REDUCE_ADD_PSEUDO_I16_t16:
+    return lowerWaveReduce(MI, *BB, *getSubtarget(), 
AMDGPU::V_ADD_I16_t16_e64);
   case AMDGPU::WAVE_REDUCE_ADD_PSEUDO_I16:
     return lowerWaveReduce(MI, *BB, *getSubtarget(),
                            ST.hasTrue16BitInsts() ? 
AMDGPU::V_ADD_I16_fake16_e64
@@ -6873,6 +6882,8 @@ 
SITargetLowering::EmitInstrWithCustomInserter(MachineInstr &MI,
                            ST.getGeneration() >= AMDGPUSubtarget::GFX12
                                ? AMDGPU::V_ADD_F64_pseudo_e64
                                : AMDGPU::V_ADD_F64_e64);
+  case AMDGPU::WAVE_REDUCE_SUB_PSEUDO_I16_t16:
+    return lowerWaveReduce(MI, *BB, *getSubtarget(), 
AMDGPU::V_SUB_I16_t16_e64);
   case AMDGPU::WAVE_REDUCE_SUB_PSEUDO_I16:
     return lowerWaveReduce(MI, *BB, *getSubtarget(),
                            ST.hasTrue16BitInsts() ? 
AMDGPU::V_SUB_I16_fake16_e64
diff --git a/llvm/lib/Target/AMDGPU/SIInstructions.td 
b/llvm/lib/Target/AMDGPU/SIInstructions.td
index f54e01a6b8656..1afcb3ecc38ba 100644
--- a/llvm/lib/Target/AMDGPU/SIInstructions.td
+++ b/llvm/lib/Target/AMDGPU/SIInstructions.td
@@ -417,7 +417,9 @@ defvar Operations = [
   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>
+  WaveReduceOp<"max", "I16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>,
+  WaveReduceOp<"add", "I16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>,
+  WaveReduceOp<"sub", "I16_t16", i16, SGPR_32, VSrcT_b16, UseRealTrue16Insts>
 ];
 
 foreach Op = Operations in {
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.add.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.add.ll
index 88f0fa199e037..c06c317efb035 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.add.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.add.ll
@@ -12,6 +12,11 @@
 ; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-FAKE16 %s
 ; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-FAKE16 %s
 ; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1200 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX12DAGISEL,GFX12DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1200 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX12DAGISEL,GFX12DAGISEL-TRUE16 %s
 
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
@@ -128,78 +133,153 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX1032GISEL-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX1032GISEL-NEXT:    s_endpgm
 ;
-; GFX1164DAGISEL-LABEL: uniform_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_clause 0x1
-; GFX1164DAGISEL-NEXT:    s_load_b32 s6, s[4:5], 0x2c
-; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164DAGISEL-NEXT:    s_mov_b64 s[2:3], exec
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX1164DAGISEL-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
-; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    s_mul_i32 s2, s6, s2
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; 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 s6, s[4:5], 0x2c
-; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164GISEL-NEXT:    s_mov_b64 s[2:3], exec
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1164GISEL-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
-; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164GISEL-NEXT:    s_and_b32 s3, 0xffff, s6
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | 
instid1(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    s_mul_i32 s2, s3, s2
-; 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_mov_b32 s3, exec_lo
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) 
| instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
-; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    s_mul_i32 s2, s2, s3
-; 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:    s_mov_b32 s3, exec_lo
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1132GISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
-; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | 
instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    s_mul_i32 s2, s2, s3
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v0, s2
-; GFX1132GISEL-NEXT:    global_store_b16 v1, v0, s[0:1]
-; GFX1132GISEL-NEXT:    s_endpgm
-;
-; GFX12DAGISEL-LABEL: uniform_value_i16:
-; GFX12DAGISEL:       ; %bb.0: ; %entry
-; GFX12DAGISEL-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
-; GFX12DAGISEL-NEXT:    s_mov_b32 s3, exec_lo
-; GFX12DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) | 
instid1(SALU_CYCLE_1)
-; GFX12DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
-; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
-; GFX12DAGISEL-NEXT:    s_mul_i32 s2, s2, s3
-; GFX12DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
-; GFX12DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX12DAGISEL-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 s6, s[4:5], 0x2c
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mul_i32 s2, s6, s2
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; 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 s6, s[4:5], 0x2c
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-FAKE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    s_and_b32 s3, 0xffff, s6
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    s_mul_i32 s2, s3, s2
+; 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_mov_b32 s3, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_2) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mul_i32 s2, s2, s3
+; 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:    s_mov_b32 s3, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; 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) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    s_mul_i32 s2, s2, s3
+; 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
+;
+; GFX12DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX12DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-FAKE16-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
+; GFX12DAGISEL-FAKE16-NEXT:    s_mov_b32 s3, exec_lo
+; GFX12DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_2) | instid1(SALU_CYCLE_1)
+; GFX12DAGISEL-FAKE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_mul_i32 s2, s2, s3
+; GFX12DAGISEL-FAKE16-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX12DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX12DAGISEL-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 s6, s[4:5], 0x2c
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mul_i32 s2, s6, s2
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; 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 s6, s[4:5], 0x2c
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-TRUE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    s_and_b32 s3, 0xffff, s6
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    s_mul_i32 s2, s3, s2
+; 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:    s_mov_b32 s3, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mul_i32 s2, s2, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; 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:    s_mov_b32 s3, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; 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) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    s_mul_i32 s2, s2, s3
+; 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
+;
+; GFX12DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX12DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-TRUE16-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
+; GFX12DAGISEL-TRUE16-NEXT:    s_mov_b32 s3, exec_lo
+; GFX12DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX12DAGISEL-TRUE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_mul_i32 s2, s2, s3
+; GFX12DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX12DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX12DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX12DAGISEL-TRUE16-NEXT:    s_endpgm
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.add.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
@@ -359,112 +439,219 @@ 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:    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(SALU_CYCLE_1) | instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
-; GFX1164DAGISEL-NEXT:    v_add_nc_i16 v3, s2, s4
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1164DAGISEL-NEXT:    v_readfirstlane_b32 s2, v3
-; 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:    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(SALU_CYCLE_1) | instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
-; GFX1164GISEL-NEXT:    v_add_nc_i16 v3, s2, s4
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1164GISEL-NEXT:    v_readfirstlane_b32 s2, v3
-; 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:    s_mov_b32 s0, exec_lo
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, 0
-; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s0
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) 
| instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s0, s2
-; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s0, 0
-; GFX1132DAGISEL-NEXT:    v_add_nc_i16 v3, s1, s3
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1132DAGISEL-NEXT:    v_readfirstlane_b32 s1, v3
-; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132DAGISEL-NEXT:  ; %bb.2:
-; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
-; 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:    s_mov_b32 s0, exec_lo
-; GFX1132GISEL-NEXT:    s_mov_b32 s1, 0
-; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s0
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132GISEL-NEXT:    s_bitset0_b32 s0, s2
-; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s0, 0
-; GFX1132GISEL-NEXT:    v_add_nc_i16 v3, s1, s3
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1132GISEL-NEXT:    v_readfirstlane_b32 s1, v3
-; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132GISEL-NEXT:  ; %bb.2:
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s1
-; GFX1132GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX12DAGISEL-LABEL: divergent_value_i16:
-; GFX12DAGISEL:       ; %bb.0: ; %entry
-; GFX12DAGISEL-NEXT:    s_wait_loadcnt_dscnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_expcnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_samplecnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_bvhcnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
-; GFX12DAGISEL-NEXT:    s_mov_b32 s0, exec_lo
-; GFX12DAGISEL-NEXT:    s_mov_b32 s1, 0
-; GFX12DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
-; GFX12DAGISEL-NEXT:    s_ctz_i32_b32 s2, s0
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
-; GFX12DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX12DAGISEL-NEXT:    s_bitset0_b32 s0, s2
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
-; GFX12DAGISEL-NEXT:    s_cmp_lg_u32 s0, 0
-; GFX12DAGISEL-NEXT:    v_add_nc_i16 v3, s1, s3
-; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX12DAGISEL-NEXT:    v_readfirstlane_b32 s1, v3
-; GFX12DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX12DAGISEL-NEXT:  ; %bb.2:
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_va_sdst(0)
-; GFX12DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
-; GFX12DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX12DAGISEL-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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-FAKE16-NEXT:    v_add_nc_i16 v3, s2, s4
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-FAKE16-NEXT:    v_add_nc_i16 v3, s2, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132DAGISEL-FAKE16-NEXT:    v_add_nc_i16 v3, s1, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s1
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132GISEL-FAKE16-NEXT:    v_add_nc_i16 v3, s1, s3
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s1
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX12DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX12DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_expcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_samplecnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_bvhcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_mov_b32 s0, exec_lo
+; GFX12DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, 0
+; GFX12DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX12DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX12DAGISEL-FAKE16-NEXT:    v_add_nc_i16 v3, s1, s3
+; GFX12DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX12DAGISEL-FAKE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX12DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX12DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_va_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s1
+; GFX12DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX12DAGISEL-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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-TRUE16-NEXT:    v_add_nc_i16 v3.l, s2, s4
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-TRUE16-NEXT:    v_add_nc_i16 v3.l, s2, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    v_add_nc_i16 v3.l, s1, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s1
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132GISEL-TRUE16-NEXT:    v_add_nc_i16 v3.l, s1, s3
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s1
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX12DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX12DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_expcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_samplecnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_bvhcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_mov_b32 s0, exec_lo
+; GFX12DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, 0
+; GFX12DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX12DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX12DAGISEL-TRUE16-NEXT:    v_add_nc_i16 v3.l, s1, s3
+; GFX12DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX12DAGISEL-TRUE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX12DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX12DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_va_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s1
+; GFX12DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX12DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.add.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
@@ -4356,9 +4543,3 @@ endif:
   store i64 %combine, ptr addrspace(1) %out
   ret void
 }
-;; NOTE: These prefixes are unused and the list is autogenerated. Do not add 
tests below this line:
-; GFX1132DAGISEL-FAKE16: {{.*}}
-; GFX1132GISEL-FAKE16: {{.*}}
-; GFX1164DAGISEL-FAKE16: {{.*}}
-; GFX1164GISEL-FAKE16: {{.*}}
-; GFX12DAGISEL-FAKE16: {{.*}}
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.sub.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.sub.ll
index deceece4f3716..e60b0bb03b27d 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.sub.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.reduce.sub.ll
@@ -12,6 +12,11 @@
 ; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-FAKE16 %s
 ; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-FAKE16 %s
 ; RUN: llc -mtriple=amdgcn -mattr=-real-true16 -mcpu=gfx1200 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX12DAGISEL,GFX12DAGISEL-FAKE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=0 
-mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164DAGISEL,GFX1164DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select -mattr=+wavefrontsize64 < %s | FileCheck 
-check-prefixes=GFX1164GISEL,GFX1164GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX1132DAGISEL,GFX1132DAGISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1100 -global-isel=1 
-new-reg-bank-select < %s | FileCheck 
-check-prefixes=GFX1132GISEL,GFX1132GISEL-TRUE16 %s
+; RUN: llc -mtriple=amdgcn -mattr=+real-true16 -mcpu=gfx1200 -global-isel=0 < 
%s | FileCheck -check-prefixes=GFX12DAGISEL,GFX12DAGISEL-TRUE16 %s
 
 define amdgpu_kernel void @uniform_value_i16(ptr addrspace(1) %out, i16 %in) {
 ; GFX8DAGISEL-LABEL: uniform_value_i16:
@@ -136,87 +141,169 @@ define amdgpu_kernel void @uniform_value_i16(ptr 
addrspace(1) %out, i16 %in) {
 ; GFX1032GISEL-NEXT:    global_store_short v1, v0, s[0:1]
 ; GFX1032GISEL-NEXT:    s_endpgm
 ;
-; GFX1164DAGISEL-LABEL: uniform_value_i16:
-; GFX1164DAGISEL:       ; %bb.0: ; %entry
-; GFX1164DAGISEL-NEXT:    s_clause 0x1
-; GFX1164DAGISEL-NEXT:    s_load_b32 s6, s[4:5], 0x2c
-; GFX1164DAGISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164DAGISEL-NEXT:    s_mov_b64 s[2:3], exec
-; GFX1164DAGISEL-NEXT:    v_mov_b32_e32 v0, 0
-; GFX1164DAGISEL-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
-; GFX1164DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164DAGISEL-NEXT:    s_sub_i32 s3, 0, s6
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | 
instid1(SALU_CYCLE_1)
-; GFX1164DAGISEL-NEXT:    s_mul_i32 s2, s3, s2
-; 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 s6, s[4:5], 0x2c
-; GFX1164GISEL-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
-; GFX1164GISEL-NEXT:    s_mov_b64 s[2:3], exec
-; GFX1164GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1164GISEL-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
-; GFX1164GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1164GISEL-NEXT:    s_and_b32 s4, 0xffff, s6
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | 
instid1(SALU_CYCLE_1)
-; GFX1164GISEL-NEXT:    s_sub_i32 s3, 0, s4
-; GFX1164GISEL-NEXT:    s_mul_i32 s2, s3, 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_mov_b32 s3, exec_lo
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) 
| instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
-; GFX1132DAGISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132DAGISEL-NEXT:    s_sub_i32 s2, 0, s2
-; GFX1132DAGISEL-NEXT:    s_mul_i32 s2, s2, s3
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; 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:    s_mov_b32 s3, exec_lo
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v1, 0
-; GFX1132GISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
-; GFX1132GISEL-NEXT:    s_waitcnt lgkmcnt(0)
-; GFX1132GISEL-NEXT:    s_and_b32 s2, 0xffff, s2
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(NEXT) | 
instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    s_sub_i32 s2, 0, s2
-; GFX1132GISEL-NEXT:    s_mul_i32 s2, s2, s3
-; 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
-;
-; GFX12DAGISEL-LABEL: uniform_value_i16:
-; GFX12DAGISEL:       ; %bb.0: ; %entry
-; GFX12DAGISEL-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
-; GFX12DAGISEL-NEXT:    s_mov_b32 s3, exec_lo
-; GFX12DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_2) | 
instid1(SALU_CYCLE_1)
-; GFX12DAGISEL-NEXT:    s_bcnt1_i32_b32 s3, s3
-; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
-; GFX12DAGISEL-NEXT:    s_sub_co_i32 s2, 0, s2
-; GFX12DAGISEL-NEXT:    s_mul_i32 s2, s2, s3
-; GFX12DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
-; GFX12DAGISEL-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
-; GFX12DAGISEL-NEXT:    global_store_b16 v0, v1, s[0:1]
-; GFX12DAGISEL-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 s6, s[4:5], 0x2c
+; GFX1164DAGISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v0, 0
+; GFX1164DAGISEL-FAKE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-FAKE16-NEXT:    s_sub_i32 s3, 0, s6
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    s_mul_i32 s2, s3, s2
+; 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 s6, s[4:5], 0x2c
+; GFX1164GISEL-FAKE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-FAKE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-FAKE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164GISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-FAKE16-NEXT:    s_and_b32 s4, 0xffff, s6
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1164GISEL-FAKE16-NEXT:    s_sub_i32 s3, 0, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_mul_i32 s2, s3, 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_mov_b32 s3, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_2) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-FAKE16-NEXT:    s_sub_i32 s2, 0, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mul_i32 s2, s2, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; 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:    s_mov_b32 s3, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-FAKE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; 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) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    s_sub_i32 s2, 0, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_mul_i32 s2, s2, s3
+; 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
+;
+; GFX12DAGISEL-FAKE16-LABEL: uniform_value_i16:
+; GFX12DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-FAKE16-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
+; GFX12DAGISEL-FAKE16-NEXT:    s_mov_b32 s3, exec_lo
+; GFX12DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_2) | instid1(SALU_CYCLE_1)
+; GFX12DAGISEL-FAKE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_sub_co_i32 s2, 0, s2
+; GFX12DAGISEL-FAKE16-NEXT:    s_mul_i32 s2, s2, s3
+; GFX12DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1)
+; GFX12DAGISEL-FAKE16-NEXT:    v_dual_mov_b32 v0, 0 :: v_dual_mov_b32 v1, s2
+; GFX12DAGISEL-FAKE16-NEXT:    global_store_b16 v0, v1, s[0:1]
+; GFX12DAGISEL-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 s6, s[4:5], 0x2c
+; GFX1164DAGISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164DAGISEL-TRUE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164DAGISEL-TRUE16-NEXT:    s_sub_i32 s3, 0, s6
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    s_mul_i32 s2, s3, s2
+; 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 s6, s[4:5], 0x2c
+; GFX1164GISEL-TRUE16-NEXT:    s_load_b64 s[0:1], s[4:5], 0x24
+; GFX1164GISEL-TRUE16-NEXT:    s_mov_b64 s[2:3], exec
+; GFX1164GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1164GISEL-TRUE16-NEXT:    s_bcnt1_i32_b64 s2, s[2:3]
+; GFX1164GISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1164GISEL-TRUE16-NEXT:    s_and_b32 s4, 0xffff, s6
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1164GISEL-TRUE16-NEXT:    s_sub_i32 s3, 0, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_mul_i32 s2, s3, 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:    s_mov_b32 s3, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_waitcnt lgkmcnt(0)
+; GFX1132DAGISEL-TRUE16-NEXT:    s_sub_i32 s2, 0, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mul_i32 s2, s2, s3
+; 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:    s_mov_b32 s3, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX1132GISEL-TRUE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; 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) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    s_sub_i32 s2, 0, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_mul_i32 s2, s2, s3
+; 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
+;
+; GFX12DAGISEL-TRUE16-LABEL: uniform_value_i16:
+; GFX12DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-TRUE16-NEXT:    s_load_b96 s[0:2], s[4:5], 0x24
+; GFX12DAGISEL-TRUE16-NEXT:    s_mov_b32 s3, exec_lo
+; GFX12DAGISEL-TRUE16-NEXT:    v_mov_b32_e32 v1, 0
+; GFX12DAGISEL-TRUE16-NEXT:    s_bcnt1_i32_b32 s3, s3
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_sub_co_i32 s2, 0, s2
+; GFX12DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(NEXT) | instid1(SALU_CYCLE_1)
+; GFX12DAGISEL-TRUE16-NEXT:    s_mul_i32 s2, s2, s3
+; GFX12DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v0.l, s2
+; GFX12DAGISEL-TRUE16-NEXT:    global_store_b16 v1, v0, s[0:1]
+; GFX12DAGISEL-TRUE16-NEXT:    s_endpgm
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.sub.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
@@ -376,112 +463,219 @@ 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:    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(SALU_CYCLE_1) | instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
-; GFX1164DAGISEL-NEXT:    v_sub_nc_i16 v3, s2, s4
-; GFX1164DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1164DAGISEL-NEXT:    v_readfirstlane_b32 s2, v3
-; 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:    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(SALU_CYCLE_1) | instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
-; GFX1164GISEL-NEXT:    v_sub_nc_i16 v3, s2, s4
-; GFX1164GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1164GISEL-NEXT:    v_readfirstlane_b32 s2, v3
-; 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:    s_mov_b32 s0, exec_lo
-; GFX1132DAGISEL-NEXT:    s_mov_b32 s1, 0
-; GFX1132DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132DAGISEL-NEXT:    s_ctz_i32_b32 s2, s0
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) 
| instid1(SALU_CYCLE_1)
-; GFX1132DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132DAGISEL-NEXT:    s_bitset0_b32 s0, s2
-; GFX1132DAGISEL-NEXT:    s_cmp_lg_u32 s0, 0
-; GFX1132DAGISEL-NEXT:    v_sub_nc_i16 v3, s1, s3
-; GFX1132DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1132DAGISEL-NEXT:    v_readfirstlane_b32 s1, v3
-; GFX1132DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132DAGISEL-NEXT:  ; %bb.2:
-; GFX1132DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
-; 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:    s_mov_b32 s0, exec_lo
-; GFX1132GISEL-NEXT:    s_mov_b32 s1, 0
-; GFX1132GISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX1132GISEL-NEXT:    s_ctz_i32_b32 s2, s0
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | instskip(SKIP_1) | 
instid1(SALU_CYCLE_1)
-; GFX1132GISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX1132GISEL-NEXT:    s_bitset0_b32 s0, s2
-; GFX1132GISEL-NEXT:    s_cmp_lg_u32 s0, 0
-; GFX1132GISEL-NEXT:    v_sub_nc_i16 v3, s1, s3
-; GFX1132GISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX1132GISEL-NEXT:    v_readfirstlane_b32 s1, v3
-; GFX1132GISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX1132GISEL-NEXT:  ; %bb.2:
-; GFX1132GISEL-NEXT:    v_mov_b32_e32 v2, s1
-; GFX1132GISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX1132GISEL-NEXT:    s_setpc_b64 s[30:31]
-;
-; GFX12DAGISEL-LABEL: divergent_value_i16:
-; GFX12DAGISEL:       ; %bb.0: ; %entry
-; GFX12DAGISEL-NEXT:    s_wait_loadcnt_dscnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_expcnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_samplecnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_bvhcnt 0x0
-; GFX12DAGISEL-NEXT:    s_wait_kmcnt 0x0
-; GFX12DAGISEL-NEXT:    s_mov_b32 s0, exec_lo
-; GFX12DAGISEL-NEXT:    s_mov_b32 s1, 0
-; GFX12DAGISEL-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
-; GFX12DAGISEL-NEXT:    s_ctz_i32_b32 s2, s0
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
-; GFX12DAGISEL-NEXT:    v_readlane_b32 s3, v2, s2
-; GFX12DAGISEL-NEXT:    s_bitset0_b32 s0, s2
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_sa_sdst(0)
-; GFX12DAGISEL-NEXT:    s_cmp_lg_u32 s0, 0
-; GFX12DAGISEL-NEXT:    v_sub_nc_i16 v3, s1, s3
-; GFX12DAGISEL-NEXT:    s_delay_alu instid0(VALU_DEP_1)
-; GFX12DAGISEL-NEXT:    v_readfirstlane_b32 s1, v3
-; GFX12DAGISEL-NEXT:    s_cbranch_scc1 .LBB1_1
-; GFX12DAGISEL-NEXT:  ; %bb.2:
-; GFX12DAGISEL-NEXT:    s_wait_alu depctr_va_sdst(0)
-; GFX12DAGISEL-NEXT:    v_mov_b32_e32 v2, s1
-; GFX12DAGISEL-NEXT:    global_store_b16 v[0:1], v2, off
-; GFX12DAGISEL-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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-FAKE16-NEXT:    v_sub_nc_i16 v3, s2, s4
+; GFX1164DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164DAGISEL-FAKE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-FAKE16-NEXT:    v_sub_nc_i16 v3, s2, s4
+; GFX1164GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164GISEL-FAKE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132DAGISEL-FAKE16-NEXT:    v_sub_nc_i16 v3, s1, s3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132DAGISEL-FAKE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s1
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132GISEL-FAKE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132GISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132GISEL-FAKE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132GISEL-FAKE16-NEXT:    v_sub_nc_i16 v3, s1, s3
+; GFX1132GISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132GISEL-FAKE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132GISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s1
+; GFX1132GISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-FAKE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX12DAGISEL-FAKE16-LABEL: divergent_value_i16:
+; GFX12DAGISEL-FAKE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_expcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_samplecnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_bvhcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-FAKE16-NEXT:    s_mov_b32 s0, exec_lo
+; GFX12DAGISEL-FAKE16-NEXT:    s_mov_b32 s1, 0
+; GFX12DAGISEL-FAKE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX12DAGISEL-FAKE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX12DAGISEL-FAKE16-NEXT:    v_sub_nc_i16 v3, s1, s3
+; GFX12DAGISEL-FAKE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX12DAGISEL-FAKE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX12DAGISEL-FAKE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX12DAGISEL-FAKE16-NEXT:  ; %bb.2:
+; GFX12DAGISEL-FAKE16-NEXT:    s_wait_alu depctr_va_sdst(0)
+; GFX12DAGISEL-FAKE16-NEXT:    v_mov_b32_e32 v2, s1
+; GFX12DAGISEL-FAKE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX12DAGISEL-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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164DAGISEL-TRUE16-NEXT:    v_sub_nc_i16 v3.l, s2, s4
+; GFX1164DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164DAGISEL-TRUE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    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(SALU_CYCLE_1) | 
instskip(SKIP_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_cmp_lg_u64 s[0:1], 0
+; GFX1164GISEL-TRUE16-NEXT:    v_sub_nc_i16 v3.l, s2, s4
+; GFX1164GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1164GISEL-TRUE16-NEXT:    v_readfirstlane_b32 s2, v3
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132DAGISEL-TRUE16-NEXT:    v_sub_nc_i16 v3.l, s1, s3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132DAGISEL-TRUE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s1
+; 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:    s_mov_b32 s0, exec_lo
+; GFX1132GISEL-TRUE16-NEXT:    s_mov_b32 s1, 0
+; GFX1132GISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX1132GISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(SALU_CYCLE_1) | 
instskip(SKIP_1) | instid1(SALU_CYCLE_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX1132GISEL-TRUE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX1132GISEL-TRUE16-NEXT:    v_sub_nc_i16 v3.l, s1, s3
+; GFX1132GISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX1132GISEL-TRUE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX1132GISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX1132GISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX1132GISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s1
+; GFX1132GISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX1132GISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
+;
+; GFX12DAGISEL-TRUE16-LABEL: divergent_value_i16:
+; GFX12DAGISEL-TRUE16:       ; %bb.0: ; %entry
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_loadcnt_dscnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_expcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_samplecnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_bvhcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_kmcnt 0x0
+; GFX12DAGISEL-TRUE16-NEXT:    s_mov_b32 s0, exec_lo
+; GFX12DAGISEL-TRUE16-NEXT:    s_mov_b32 s1, 0
+; GFX12DAGISEL-TRUE16-NEXT:  .LBB1_1: ; =>This Inner Loop Header: Depth=1
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    s_ctz_i32_b32 s2, s0
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    v_readlane_b32 s3, v2, s2
+; GFX12DAGISEL-TRUE16-NEXT:    s_bitset0_b32 s0, s2
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_sa_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    s_cmp_lg_u32 s0, 0
+; GFX12DAGISEL-TRUE16-NEXT:    v_sub_nc_i16 v3.l, s1, s3
+; GFX12DAGISEL-TRUE16-NEXT:    s_delay_alu instid0(VALU_DEP_1)
+; GFX12DAGISEL-TRUE16-NEXT:    v_readfirstlane_b32 s1, v3
+; GFX12DAGISEL-TRUE16-NEXT:    s_cbranch_scc1 .LBB1_1
+; GFX12DAGISEL-TRUE16-NEXT:  ; %bb.2:
+; GFX12DAGISEL-TRUE16-NEXT:    s_wait_alu depctr_va_sdst(0)
+; GFX12DAGISEL-TRUE16-NEXT:    v_mov_b16_e32 v2.l, s1
+; GFX12DAGISEL-TRUE16-NEXT:    global_store_b16 v[0:1], v2, off
+; GFX12DAGISEL-TRUE16-NEXT:    s_setpc_b64 s[30:31]
 entry:
   %result = call i16 @llvm.amdgcn.wave.reduce.sub.i16(i16 %in, i32 1)
   store i16 %result, ptr addrspace(1) %out
@@ -4649,9 +4843,3 @@ endif:
   store i64 %combine, ptr addrspace(1) %out
   ret void
 }
-;; NOTE: These prefixes are unused and the list is autogenerated. Do not add 
tests below this line:
-; GFX1132DAGISEL-FAKE16: {{.*}}
-; GFX1132GISEL-FAKE16: {{.*}}
-; GFX1164DAGISEL-FAKE16: {{.*}}
-; GFX1164GISEL-FAKE16: {{.*}}
-; GFX12DAGISEL-FAKE16: {{.*}}

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