https://github.com/0xzre updated 
https://github.com/llvm/llvm-project/pull/171069

>From df40111bf084022085b4facd555c03fd42c2827d Mon Sep 17 00:00:00 2001
From: 0xzre <[email protected]>
Date: Mon, 8 Dec 2025 07:32:45 +0700
Subject: [PATCH 1/6] [AMDGPU] add clamp immediate operand to WMMA iu8
 intrinsic

---
 clang/include/clang/Basic/BuiltinsAMDGPU.def     |  2 +-
 .../builtins-amdgcn-gfx1250-wmma-w32.cl          |  4 ++--
 ...iltins-amdgcn-error-gfx1250-wmma-w32-param.cl |  9 +++++----
 llvm/include/llvm/IR/IntrinsicsAMDGPU.td         |  3 ++-
 llvm/lib/Target/AMDGPU/VOP3PInstructions.td      |  4 +++-
 .../UniformityAnalysis/AMDGPU/intrinsics.ll      |  6 +++---
 .../AMDGPU/llvm.amdgcn.wmma.gfx1250.w32.ll       |  4 ++--
 .../AMDGPU/llvm.amdgcn.wmma.imm.gfx1250.w32.ll   |  8 ++++----
 .../AMDGPU/llvm.amdgcn.wmma.imod.gfx1250.w32.ll  |  6 +++---
 mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td     |  5 +++--
 mlir/test/Target/LLVMIR/rocdl.mlir               | 16 ++++++++++------
 11 files changed, 38 insertions(+), 29 deletions(-)

diff --git a/clang/include/clang/Basic/BuiltinsAMDGPU.def 
b/clang/include/clang/Basic/BuiltinsAMDGPU.def
index 8af6ce1528a45..ebdac12ce107b 100644
--- a/clang/include/clang/Basic/BuiltinsAMDGPU.def
+++ b/clang/include/clang/Basic/BuiltinsAMDGPU.def
@@ -856,7 +856,7 @@ TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_fp8_fp8, 
"V8hV8iV8iIsV8hIbIb",
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_fp8_bf8, 
"V8hV8iV8iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_bf8_fp8, 
"V8hV8iV8iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_bf8_bf8, 
"V8hV8iV8iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
-TARGET_BUILTIN(__builtin_amdgcn_wmma_i32_16x16x64_iu8, "V8iIbV8iIbV8iV8iIbIb", 
"nc", "gfx1250-insts,wavefrontsize32")
+TARGET_BUILTIN(__builtin_amdgcn_wmma_i32_16x16x64_iu8, 
"V8iIbV8iIbV8iV8iIbIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x128_fp8_fp8, 
"V8hV16iV16iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x128_fp8_bf8, 
"V8hV16iV16iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x128_bf8_fp8, 
"V8hV16iV16iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
diff --git a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl 
b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
index bdb1a7f0bb32f..41c2eb2155b89 100644
--- a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
+++ b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
@@ -148,13 +148,13 @@ void test_amdgcn_wmma_f16_16x16x64_bf8_bf8(global v8h* 
out, v8i a, v8i b, v8h c)
 
 // CHECK-GFX1250-LABEL: @test_amdgcn_wmma_i32_16x16x64_iu8(
 // CHECK-GFX1250-NEXT:  entry:
-// CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x i32> 
@llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 false, <8 x i32> [[A:%.*]], 
i1 false, <8 x i32> [[B:%.*]], <8 x i32> [[C:%.*]], i1 false, i1 true)
+// CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x i32> 
@llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 false, <8 x i32> [[A:%.*]], 
i1 false, <8 x i32> [[B:%.*]], <8 x i32> [[C:%.*]], i1 false, i1 true, i1 false)
 // CHECK-GFX1250-NEXT:    store <8 x i32> [[TMP0]], ptr addrspace(1) 
[[OUT:%.*]], align 32, !tbaa [[TBAA4]]
 // CHECK-GFX1250-NEXT:    ret void
 //
 void test_amdgcn_wmma_i32_16x16x64_iu8(global v8i* out, v8i a, v8i b, v8i c)
 {
-  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, true);
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, true, 
false);
 }
 
 // CHECK-GFX1250-LABEL: @test_amdgcn_wmma_f32_16x16x128_f8f6f4(
diff --git 
a/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl 
b/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl
index 49ef2e571740c..8821524fde2db 100644
--- a/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl
+++ b/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl
@@ -108,10 +108,11 @@ void test_amdgcn_wmma_f16_16x16x64_bf8_bf8(global v8h* 
out, v8i a, v8i b, v8h c,
 
 void test_amdgcn_wmma_i32_16x16x64_iu8(global v8i* out, v8i a, v8i b, v8i c, 
int mod)
 {
-  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(mod, a, 0, b, c, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
-  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, mod, b, c, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
-  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, mod, false); // 
expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a constant 
integer}}
-  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, mod); // 
expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a constant 
integer}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(mod, a, 0, b, c, false, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, mod, b, c, false, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, mod, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, mod, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, false, 
mod); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
 }
 
 void test_amdgcn_wmma_f32_16x16x128_f8f6f4(global v8f* out, v16i a, v16i b, 
v8f c, int mod)
diff --git a/llvm/include/llvm/IR/IntrinsicsAMDGPU.td 
b/llvm/include/llvm/IR/IntrinsicsAMDGPU.td
index 91d72d5ef9dfc..d422bd41b5049 100644
--- a/llvm/include/llvm/IR/IntrinsicsAMDGPU.td
+++ b/llvm/include/llvm/IR/IntrinsicsAMDGPU.td
@@ -3964,8 +3964,9 @@ class AMDGPUWmmaIntrinsicModsAB<LLVMType AB, LLVMType CD> 
:
       LLVMMatchType<0>,               // %C
       llvm_i1_ty,       // matrix_a_reuse
       llvm_i1_ty,       // matrix_b_reuse
+      llvm_i1_ty,       // %clamp
     ],
-    [IntrNoMem, IntrConvergent, ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<2>>, 
ImmArg<ArgIndex<5>>, ImmArg<ArgIndex<6>>,
+    [IntrNoMem, IntrConvergent, ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<2>>, 
ImmArg<ArgIndex<5>>, ImmArg<ArgIndex<6>>, ImmArg<ArgIndex<7>>,
      IntrWillReturn, IntrNoCallback, IntrNoFree]
 >;
 
diff --git a/llvm/lib/Target/AMDGPU/VOP3PInstructions.td 
b/llvm/lib/Target/AMDGPU/VOP3PInstructions.td
index 786e75f081e44..3cb04431c5cbb 100644
--- a/llvm/lib/Target/AMDGPU/VOP3PInstructions.td
+++ b/llvm/lib/Target/AMDGPU/VOP3PInstructions.td
@@ -1809,7 +1809,9 @@ def F32_FP8BF8X128_WMMA_w32      : 
VOP3PWMMA_Profile<[v8f32, v16i32, v16i32, v8f
 def F16_FP8BF8X64_WMMA_w32       : VOP3PWMMA_Profile<[v8f16, v8i32, v8i32, 
v8f16], 0, 0, 0, 1, 1, 0, 0, 0, 1>;
 def F16_FP8BF8X128_WMMA_w32      : VOP3PWMMA_Profile<[v8f16, v16i32, v16i32, 
v8f16], 0, 0, 0, 1, 1, 0, 0, 0, 1>;
 def F32_32X16X128_F4_WMMA_w32    : VOP3PWMMA_Profile<[v16f32, v16i32, v8i32, 
v16f32], 0, 0, 0, 0, 1, 0, 0, 0, 0, 1>;
-def I32_IU8X64_WMMA_w32          : VOP3PWMMA_Profile<[v8i32, v8i32, v8i32, 
v8i32], 0, 0, 1, 0, 1, 0, 0, 0, 1>;
+def I32_IU8X64_WMMA_w32          : VOP3PWMMA_Profile<[v8i32, v8i32, v8i32, 
v8i32], 0, 0, 1, 0, 1, 0, 0, 0, 1> {
+  let HasClamp = 1;
+}
 def F32_32X16X128_F4_SCALE_w32   : VOP3PWMMA_Profile<[v16f32, v16i32,  v8i32,  
v16f32], 0, 0, 0, 1, 1, 0, 1, 0, 1>;
 def F32_32X16X128_F4_SCALE16_w32 : VOP3PWMMA_Profile<[v16f32, v16i32,  v8i32,  
v16f32], 0, 0, 0, 1, 1, 0, 1, 1, 1>;
 def F32_F16X64_SWMMAC_w32        : VOP3PWMMA_Profile<[v8f32, v16f16, v32f16, 
v8f32], 1, 16, 0, 0, 1, 0, 0, 0, 1>;
diff --git a/llvm/test/Analysis/UniformityAnalysis/AMDGPU/intrinsics.ll 
b/llvm/test/Analysis/UniformityAnalysis/AMDGPU/intrinsics.ll
index d5c6000a1eef6..8bd28d711ebf7 100644
--- a/llvm/test/Analysis/UniformityAnalysis/AMDGPU/intrinsics.ll
+++ b/llvm/test/Analysis/UniformityAnalysis/AMDGPU/intrinsics.ll
@@ -295,9 +295,9 @@ define amdgpu_kernel void @wmma_f16_16x16x64_bf8_bf8(<8 x 
i32> %A, <8 x i32> %B,
   ret void
 }
 
-; CHECK: DIVERGENT: %tmp0 = call <8 x i32> 
@llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 false, <8 x i32> %A, i1 
false, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false)
+; CHECK: DIVERGENT: %tmp0 = call <8 x i32> 
@llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 false, <8 x i32> %A, i1 
false, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false, i1 false)
 define amdgpu_kernel void @wmma_i32_16x16x64_iu8(<8 x i32> %A, <8 x i32> %B, 
<8 x i32> %C, ptr addrspace(1) %out) {
-  %tmp0 = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false)
+  %tmp0 = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false, i1 false)
   store <8 x i32> %tmp0, ptr addrspace(1) %out
   ret void
 }
@@ -903,7 +903,7 @@ declare <8 x half> 
@llvm.amdgcn.wmma.f16.16x16x64.fp8.fp8.v8f16.v8i32(<8 x i32>,
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.fp8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.fp8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
-declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1)
+declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1, i1)
 declare <8 x float> 
@llvm.amdgcn.wmma.f32.16x16x128.f8f6f4.v8f32.v16i32.v16i32(i32, <16 x i32>, 
i32, <16 x i32>, i16, <8 x float>)
 declare <8 x float> 
@llvm.amdgcn.wmma.scale.f32.16x16x128.f8f6f4.v8f32.v16i32.v16i32(i32, <16 x 
i32>, i32, <16 x i32>, i16, <8 x float>, i32, i32, i32, i32, i32, i32, i1, i1)
 declare <8 x float> 
@llvm.amdgcn.wmma.scale16.f32.16x16x128.f8f6f4.v8f32.v16i32.v16i32(i32, <16 x 
i32>, i32, <16 x i32>, i16, <8 x float>, i32, i32, i64, i32, i32, i64, i1, i1)
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.gfx1250.w32.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.gfx1250.w32.ll
index 1150578a5ae92..f56a93e470bd3 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.gfx1250.w32.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.gfx1250.w32.ll
@@ -285,7 +285,7 @@ define amdgpu_ps void @test_wmma_i32_16x16x64_iu8(<8 x i32> 
%A, <8 x i32> %B, <8
 ; GISEL-NEXT:    global_store_b128 v[24:25], v[20:23], off offset:16
 ; GISEL-NEXT:    s_endpgm
 bb:
-  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> %C, i1 false, i1 true)
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> %C, i1 false, i1 true, i1 false)
   store <8 x i32> %res, ptr addrspace(1) %out
   ret void
 }
@@ -2968,7 +2968,7 @@ declare <8 x half> 
@llvm.amdgcn.wmma.f16.16x16x64.fp8.fp8.v8f16.v8i32(<8 x i32>,
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.fp8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.fp8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
-declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1)
+declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1, i1)
 declare <8 x float> @llvm.amdgcn.wmma.f32.16x16x32.f16.v8f32.v16f16(i1, <16 x 
half>, i1, <16 x half>, i16, <8 x float>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x32.f16.v8f16.v16f16(i1, <16 x 
half>, i1, <16 x half>, i16, <8 x half>, i1, i1)
 declare <8 x float> 
@llvm.amdgcn.wmma.f32.16x16x128.f8f6f4.v8f32.v16i32.v16i32(i32, <16 x i32>, 
i32, <16 x i32>, i16, <8 x float>)
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imm.gfx1250.w32.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imm.gfx1250.w32.ll
index 037e26087eaa5..e439777429a88 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imm.gfx1250.w32.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imm.gfx1250.w32.ll
@@ -1149,7 +1149,7 @@ define amdgpu_ps void @test_wmma_i32_16x16x64_iu8(<8 x 
i32> %A, <8 x i32> %B, pt
 ; GISEL-NEXT:    global_store_b128 v[16:17], v[22:25], off offset:16
 ; GISEL-NEXT:    s_endpgm
 bb:
-  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, 
i32 1, i32 1, i32 1>, i1 false, i1 false)
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> <i32 1, i32 1, i32 1, i32 1, i32 1, 
i32 1, i32 1, i32 1>, i1 false, i1 false, i1 false)
   store <8 x i32> %res, ptr addrspace(1) %out
   ret void
 }
@@ -1191,7 +1191,7 @@ define amdgpu_ps void 
@test_wmma_i32_16x16x64_iu8_non_splat(<8 x i32> %A, <8 x i
 ; GISEL-NEXT:    global_store_b128 v[16:17], v[22:25], off offset:16
 ; GISEL-NEXT:    s_endpgm
 bb:
-  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> <i32 1, i32 1, i32 2, i32 1, i32 1, 
i32 1, i32 1, i32 1>, i1 false, i1 false)
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> <i32 1, i32 1, i32 2, i32 1, i32 1, 
i32 1, i32 1, i32 1>, i1 false, i1 false, i1 false)
   store <8 x i32> %res, ptr addrspace(1) %out
   ret void
 }
@@ -1235,7 +1235,7 @@ define amdgpu_ps void 
@test_wmma_i32_16x16x64_iu8_non_inlineable(<8 x i32> %A, <
 ; GISEL-NEXT:    global_store_b128 v[16:17], v[22:25], off offset:16
 ; GISEL-NEXT:    s_endpgm
 bb:
-  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> <i32 128, i32 128, i32 128, i32 
128, i32 128, i32 128, i32 128, i32 128>, i1 false, i1 false)
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> <i32 128, i32 128, i32 128, i32 
128, i32 128, i32 128, i32 128, i32 128>, i1 false, i1 false, i1 false)
   store <8 x i32> %res, ptr addrspace(1) %out
   ret void
 }
@@ -3020,7 +3020,7 @@ declare <8 x half> 
@llvm.amdgcn.wmma.f16.16x16x64.fp8.fp8.v8f16.v8i32(<8 x i32>,
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.fp8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.fp8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
-declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1)
+declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1, i1)
 declare <8 x float> @llvm.amdgcn.wmma.f32.16x16x32.f16.v8f32.v16f16(i1, <16 x 
half>, i1, <16 x half>, i16, <8 x float>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x32.f16.v8f16.v16f16(i1, <16 x 
half>, i1, <16 x half>, i16, <8 x half>, i1, i1)
 declare <8 x float> 
@llvm.amdgcn.wmma.f32.16x16x128.f8f6f4.v8f32.v16i32.v16i32(i32, <16 x i32>, 
i32, <16 x i32>, i16, <8 x float>)
diff --git a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imod.gfx1250.w32.ll 
b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imod.gfx1250.w32.ll
index eb7c15587654c..8e3c07e7eb17c 100644
--- a/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imod.gfx1250.w32.ll
+++ b/llvm/test/CodeGen/AMDGPU/llvm.amdgcn.wmma.imod.gfx1250.w32.ll
@@ -989,7 +989,7 @@ define amdgpu_ps void 
@test_wmma_i32_16x16x64_iu8_signedA(<8 x i32> %A, <8 x i32
 ; GISEL-NEXT:    global_store_b128 v[24:25], v[20:23], off offset:16
 ; GISEL-NEXT:    s_endpgm
 bb:
-  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 1, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false)
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 1, 
<8 x i32> %A, i1 0, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false, i1 false)
   store <8 x i32> %res, ptr addrspace(1) %out
   ret void
 }
@@ -1013,7 +1013,7 @@ define amdgpu_ps void 
@test_wmma_i32_16x16x64_iu8_signedB(<8 x i32> %A, <8 x i32
 ; GISEL-NEXT:    global_store_b128 v[24:25], v[20:23], off offset:16
 ; GISEL-NEXT:    s_endpgm
 bb:
-  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 1, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false)
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 0, 
<8 x i32> %A, i1 1, <8 x i32> %B, <8 x i32> %C, i1 false, i1 false, i1 false)
   store <8 x i32> %res, ptr addrspace(1) %out
   ret void
 }
@@ -2538,7 +2538,7 @@ declare <8 x half> 
@llvm.amdgcn.wmma.f16.16x16x64.fp8.fp8.v8f16.v8i32(<8 x i32>,
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.fp8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.fp8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x64.bf8.bf8.v8f16.v8i32(<8 x 
i32>, <8 x i32>, i16, <8 x half>, i1, i1)
-declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1)
+declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 immarg, <8 
x i32>, i1 immarg, <8 x i32>, <8 x i32>, i1, i1, i1)
 declare <8 x float> @llvm.amdgcn.wmma.f32.16x16x32.f16.v8f32.v16f16(i1, <16 x 
half>, i1, <16 x half>, i16, <8 x float>, i1, i1)
 declare <8 x half> @llvm.amdgcn.wmma.f16.16x16x32.f16.v8f16.v16f16(i1, <16 x 
half>, i1, <16 x half>, i16, <8 x half>, i1, i1)
 declare <8 x float> 
@llvm.amdgcn.wmma.f32.16x16x128.f8f6f4.v8f32.v16i32.v16i32(i32, <16 x i32>, 
i32, <16 x i32>, i16, <8 x float>)
diff --git a/mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td 
b/mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td
index 0edb208a8fcba..3e2721499a075 100644
--- a/mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td
+++ b/mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td
@@ -686,7 +686,7 @@ class ROCDL_WMMA_ModsAll_Diff_IntrOp<string mnemonic, Type 
AB, Type C, Type D> :
 }
 
 class ROCDL_WMMA_ModsAB_IntrOp<string mnemonic, Type AB, Type CD> : 
ROCDL_IntrOp<mnemonic,
-    [0], [1], [], 1, 0, 0, 0, [0, 2, 5, 6], ["signA", "signB", 
"reuseA","reuseB"]>,
+    [0], [1], [], 1, 0, 0, 0, [0, 2, 5, 6, 7], ["signA", "signB", 
"reuseA","reuseB", "clamp"]>,
   Arguments<(ins 
              DefaultValuedAttr<I1Attr, "0">:$signA,
              LLVM_ScalarOrVectorOf<AB>:$a, 
@@ -694,7 +694,8 @@ class ROCDL_WMMA_ModsAB_IntrOp<string mnemonic, Type AB, 
Type CD> : ROCDL_IntrOp
              LLVM_ScalarOrVectorOf<AB>:$b,
              LLVM_ScalarOrVectorOf<CD>:$c, 
              DefaultValuedAttr<I1Attr, "0">:$reuseA, 
-             DefaultValuedAttr<I1Attr, "0">:$reuseB)> {
+             DefaultValuedAttr<I1Attr, "0">:$reuseB,
+             DefaultValuedAttr<I1Attr, "0">:$clamp)> {
   let results = (outs LLVM_ScalarOrVectorOf<CD>:$res);
   let assemblyFormat = [{
     $a `,` $b `,` $c attr-dict `:` functional-type(operands, $res)
diff --git a/mlir/test/Target/LLVMIR/rocdl.mlir 
b/mlir/test/Target/LLVMIR/rocdl.mlir
index 7be6d6ba4d7be..cd7d86dbfd50e 100644
--- a/mlir/test/Target/LLVMIR/rocdl.mlir
+++ b/mlir/test/Target/LLVMIR/rocdl.mlir
@@ -1016,16 +1016,20 @@ llvm.func @rocdl.wmma(%arg0 : vector<8xf32>, %arg1 : 
vector<16 x f16>, %arg2 : v
   %r22.gfx1250 = rocdl.wmma.f16.16x16x128.bf8_bf8 %arg5, %arg5, %arg15 {signA 
= false, signB = false, modC = 0 : i16} : (vector<4xi32>, vector<4xi32>, 
vector<64xf16>) -> vector<64xf16>
 
   // iu8 -> i32
-  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
false, <4 x i32> %{{.*}} i1 false, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 
false, i1 false)
-  %r23.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
false, signB = false} : (vector<4xi32>, vector<4xi32>, vector<64xi32>) -> 
vector<64xi32>
+  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
false, <4 x i32> %{{.*}} i1 false, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 
false, i1 false, i1 false)
+  %r23.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
false, signB = false, clamp = false} : (vector<4xi32>, vector<4xi32>, 
vector<64xi32>) -> vector<64xi32>
 
   // Test signA=true, signB=true for iu8 gfx1250  
-  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
true, <4 x i32> %{{.*}} i1 true, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 false, 
i1 false)
-  %r23a.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
true, signB = true} : (vector<4xi32>, vector<4xi32>, vector<64xi32>) -> 
vector<64xi32>
+  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
true, <4 x i32> %{{.*}} i1 true, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 false, 
i1 false, i1 false)
+  %r23a.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
true, signB = true, clamp = false} : (vector<4xi32>, vector<4xi32>, 
vector<64xi32>) -> vector<64xi32>
 
   // Test signA=true, signB=false, reuseA=true, reuseB=true for iu8 gfx1250
-  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
true, <4 x i32> %{{.*}} i1 false, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 true, 
i1 true)
-  %r23b.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
true, signB = false, reuseA = true, reuseB = true} : (vector<4xi32>, 
vector<4xi32>, vector<64xi32>) -> vector<64xi32>
+  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
true, <4 x i32> %{{.*}} i1 false, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 true, 
i1 true, i1 false)
+  %r23b.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
true, signB = false, reuseA = true, reuseB = true, clamp = false} : 
(vector<4xi32>, vector<4xi32>, vector<64xi32>) -> vector<64xi32>
+
+  // Test clamp=true for iu8 gfx1250
+  // CHECK: call <64 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v64i32.v4i32(i1 
false, <4 x i32> %{{.*}} i1 false, <4 x i32> %{{.*}} <64 x i32> %{{.*}} i1 
false, i1 false, i1 true)
+  %r23c.gfx1250 = rocdl.wmma.i32.16x16x64.iu8 %arg5, %arg5, %arg14 {signA = 
false, signB = false, clamp = true} : (vector<4xi32>, vector<4xi32>, 
vector<64xi32>) -> vector<64xi32>
 
   // Test signA=true, signB=true with modC=1 for f32 gfx1250
   // CHECK: call <4 x float> @llvm.amdgcn.wmma.f32.16x16x4.f32.v4f32.v16f32(i1 
true, <16 x float> %{{.*}} i1 true, <16 x float> %{{.*}} i16 1, <4 x float> 
%{{.*}} i1 false, i1 false)

>From 4dc4f2e5613a0b6b7dac7821b2de127dfd2056cb Mon Sep 17 00:00:00 2001
From: 0xzre <[email protected]>
Date: Mon, 8 Dec 2025 12:02:55 +0700
Subject: [PATCH 2/6] fix MC tests

---
 .../AMDGPU/wmma-hazards-gfx1250-w32.mir       | 20 +++++++++----------
 llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32.s    | 11 +++++++---
 .../test/MC/AMDGPU/gfx1250_asm_wmma_w32_err.s |  3 ---
 3 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/llvm/test/CodeGen/AMDGPU/wmma-hazards-gfx1250-w32.mir 
b/llvm/test/CodeGen/AMDGPU/wmma-hazards-gfx1250-w32.mir
index fa3b9244c3e4a..cbea38155cef9 100644
--- a/llvm/test/CodeGen/AMDGPU/wmma-hazards-gfx1250-w32.mir
+++ b/llvm/test/CodeGen/AMDGPU/wmma-hazards-gfx1250-w32.mir
@@ -574,7 +574,7 @@ name: test_wmma_I32_16x16x64_IU8_D0_overlaps_A1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_D0_overlaps_A1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -584,9 +584,9 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
-    ; GFX1250-NEXT: early-clobber 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 8, killed 
$vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, implicit 
$exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
-    $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 8, killed 
$vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, implicit 
$exec
+    ; GFX1250-NEXT: early-clobber 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 8, killed 
$vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
+    $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 8, killed 
$vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39_vgpr40_vgpr41, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, 0, implicit 
$exec
 ...
 
 ---
@@ -594,7 +594,7 @@ name: test_wmma_I32_16x16x64_IU8_D0_overlaps_B1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_D0_overlaps_B1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -604,9 +604,9 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
-    ; GFX1250-NEXT: early-clobber 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, implicit 
$exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
-    $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, implicit 
$exec
+    ; GFX1250-NEXT: early-clobber 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
+    $vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr26_vgpr27_vgpr28_vgpr29_vgpr30_vgpr31_vgpr32_vgpr33, 8, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, killed 
$vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49, 0, 0, 0, 0, implicit 
$exec
 ...
 
 ---
@@ -614,7 +614,7 @@ name: test_wmma_I32_16x16x64_IU8_D0_overlaps_Index1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_D0_overlaps_Index1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -625,7 +625,7 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: early-clobber 
$vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63 = 
V_SWMMAC_F32_16X16X128_FP8_FP8_w32_twoaddr killed 
$vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39, killed 
$vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55,
 killed $vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63, killed 
$vgpr16_vgpr17, 0, 0, 0, implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63 = 
V_SWMMAC_F32_16X16X128_FP8_FP8_w32_twoaddr killed 
$vgpr32_vgpr33_vgpr34_vgpr35_vgpr36_vgpr37_vgpr38_vgpr39, killed 
$vgpr40_vgpr41_vgpr42_vgpr43_vgpr44_vgpr45_vgpr46_vgpr47_vgpr48_vgpr49_vgpr50_vgpr51_vgpr52_vgpr53_vgpr54_vgpr55,
 killed $vgpr56_vgpr57_vgpr58_vgpr59_vgpr60_vgpr61_vgpr62_vgpr63, killed 
$vgpr16_vgpr17, 0, 0, 0, implicit $exec
 ...
 
diff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32.s 
b/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32.s
index fcfff9ac5b63d..24f4feca41737 100644
--- a/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32.s
+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32.s
@@ -483,14 +483,19 @@ v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], 
v[16:23] neg_lo:[0,1,0]
 // GFX1250: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] 
neg_lo:[0,1,0] ; encoding: [0x10,0x00,0x72,0xcc,0x00,0x11,0x42,0x5c]
 // WAVESIZE-ERR: :[[@LINE-3]]:1: error: instruction requires wavesize=32
 
-v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] matrix_a_reuse
+v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] clamp
 // GFX12-ERR: :[[@LINE-1]]:1: error: instruction not supported on this GPU
-// GFX1250: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] 
matrix_a_reuse ; encoding: [0x10,0x20,0x72,0xcc,0x00,0x11,0x42,0x1c]
+// GFX1250-DAG: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] 
clamp ; encoding: [0x10,0x80,0x72,0xcc,0x00,0x11,0x42,0x1c]
 // WAVESIZE-ERR: :[[@LINE-3]]:1: error: instruction requires wavesize=32
 
 v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] matrix_b_reuse
 // GFX12-ERR: :[[@LINE-1]]:1: error: instruction not supported on this GPU
-// GFX1250: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] 
matrix_b_reuse ; encoding: [0x10,0x40,0x72,0xcc,0x00,0x11,0x42,0x1c]
+// GFX1250-DAG: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] 
matrix_b_reuse ; encoding: [0x10,0x40,0x72,0xcc,0x00,0x11,0x42,0x1c]
+// WAVESIZE-ERR: :[[@LINE-3]]:1: error: instruction requires wavesize=32
+
+v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] matrix_a_reuse
+// GFX12-ERR: :[[@LINE-1]]:1: error: instruction not supported on this GPU
+// GFX1250-DAG: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] 
matrix_a_reuse ; encoding: [0x10,0x20,0x72,0xcc,0x00,0x11,0x42,0x1c]
 // WAVESIZE-ERR: :[[@LINE-3]]:1: error: instruction requires wavesize=32
 
 v_wmma_f32_16x16x32_f16 v[16:23], v[0:7], v[8:15], v[16:23]
diff --git a/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32_err.s 
b/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32_err.s
index 41cac9d1470ae..38a9e12f4a284 100644
--- a/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32_err.s
+++ b/llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32_err.s
@@ -126,9 +126,6 @@ v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], s[16:23]
 v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], 128
 // GFX1250-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
 
-v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] clamp
-// GFX1250-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid operand for instruction
-
 v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] neg_lo:[0,0,1]
 // GFX1250-ERR: :[[@LINE-1]]:{{[0-9]+}}: error: invalid neg_lo operand
 

>From 8474ed52e369c6596a919f294389e2e3e45d4cec Mon Sep 17 00:00:00 2001
From: 0xzre <[email protected]>
Date: Mon, 8 Dec 2025 14:55:17 +0700
Subject: [PATCH 3/6] fix hazard MIR test

---
 .../AMDGPU/wmma-coececution-valu-hazards.mir  | 24 +++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/llvm/test/CodeGen/AMDGPU/wmma-coececution-valu-hazards.mir 
b/llvm/test/CodeGen/AMDGPU/wmma-coececution-valu-hazards.mir
index 2f7a6e257bb96..acfe15a9d8c84 100644
--- a/llvm/test/CodeGen/AMDGPU/wmma-coececution-valu-hazards.mir
+++ b/llvm/test/CodeGen/AMDGPU/wmma-coececution-valu-hazards.mir
@@ -319,7 +319,7 @@ name: test_wmma_I32_16x16x64_IU8_D0_overlaps_Use1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_D0_overlaps_Use1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -329,7 +329,7 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: $vgpr32 = V_ADD_F32_e32 $vgpr16, $vgpr33, implicit $mode, 
implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $vgpr32 = V_ADD_F32_e32 $vgpr16, $vgpr33, implicit $mode, implicit $exec
 ...
 
@@ -338,7 +338,7 @@ name: 
test_wmma_I32_16x16x64_IU8_D0_overlaps_Use1_with_8_valus_in_between
 body: |
   bb.0:
     ; GFX1250-LABEL: name: 
test_wmma_I32_16x16x64_IU8_D0_overlaps_Use1_with_8_valus_in_between
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: $vgpr40 = V_MOV_B32_e32 40, implicit $exec
     ; GFX1250-NEXT: $vgpr41 = V_MOV_B32_e32 41, implicit $exec
     ; GFX1250-NEXT: $vgpr42 = V_MOV_B32_e32 42, implicit $exec
@@ -348,7 +348,7 @@ body: |
     ; GFX1250-NEXT: $vgpr46 = V_MOV_B32_e32 46, implicit $exec
     ; GFX1250-NEXT: $vgpr47 = V_MOV_B32_e32 47, implicit $exec
     ; GFX1250-NEXT: $vgpr32 = V_ADD_F32_e32 $vgpr16, $vgpr33, implicit $mode, 
implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $vgpr40 = V_MOV_B32_e32 40, implicit $exec
     $vgpr41 = V_MOV_B32_e32 41, implicit $exec
     $vgpr42 = V_MOV_B32_e32 42, implicit $exec
@@ -365,7 +365,7 @@ name: 
test_wmma_I32_16x16x64_IU8_D0_overlaps_Use1_with_8_salus_in_between
 body: |
   bb.0:
     ; GFX1250-LABEL: name: 
test_wmma_I32_16x16x64_IU8_D0_overlaps_Use1_with_8_salus_in_between
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: $sgpr0 = S_MOV_B32 0
     ; GFX1250-NEXT: $sgpr1 = S_MOV_B32 1
     ; GFX1250-NEXT: $sgpr2 = S_MOV_B32 2
@@ -383,7 +383,7 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: $vgpr32 = V_ADD_F32_e32 $vgpr16, $vgpr33, implicit $mode, 
implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $sgpr0 = S_MOV_B32 0
     $sgpr1 = S_MOV_B32 1
     $sgpr2 = S_MOV_B32 2
@@ -400,7 +400,7 @@ name: test_wmma_I32_16x16x64_IU8_D0_overlaps_D1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_D0_overlaps_D1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -410,7 +410,7 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: $vgpr16 = V_ADD_F32_e32 $vgpr32, $vgpr33, implicit $mode, 
implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $vgpr16 = V_ADD_F32_e32 $vgpr32, $vgpr33, implicit $mode, implicit $exec
 ...
 
@@ -419,7 +419,7 @@ name: test_wmma_I32_16x16x64_IU8_A0_overlaps_D1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_A0_overlaps_D1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -429,7 +429,7 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: $vgpr0 = V_ADD_F32_e32 $vgpr32, $vgpr33, implicit $mode, 
implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $vgpr0 = V_ADD_F32_e32 $vgpr32, $vgpr33, implicit $mode, implicit $exec
 ...
 
@@ -438,7 +438,7 @@ name: test_wmma_I32_16x16x64_IU8_B0_overlaps_D1
 body: |
   bb.0:
     ; GFX1250-LABEL: name: test_wmma_I32_16x16x64_IU8_B0_overlaps_D1
-    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    ; GFX1250: early-clobber 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
@@ -448,7 +448,7 @@ body: |
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: V_NOP_e32 implicit $exec
     ; GFX1250-NEXT: $vgpr8 = V_ADD_F32_e32 $vgpr32, $vgpr33, implicit $mode, 
implicit $exec
-    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, implicit 
$exec
+    $vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23 = 
V_WMMA_I32_16X16X64_IU8_w32_twoaddr 8, killed 
$vgpr0_vgpr1_vgpr2_vgpr3_vgpr4_vgpr5_vgpr6_vgpr7, 8, killed 
$vgpr8_vgpr9_vgpr10_vgpr11_vgpr12_vgpr13_vgpr14_vgpr15, killed 
$vgpr16_vgpr17_vgpr18_vgpr19_vgpr20_vgpr21_vgpr22_vgpr23, 0, 0, 0, 0, implicit 
$exec
     $vgpr8 = V_ADD_F32_e32 $vgpr32, $vgpr33, implicit $mode, implicit $exec
 ...
 

>From bc654e780dcbe6698417e92c28293f397b180741 Mon Sep 17 00:00:00 2001
From: 0xzre <[email protected]>
Date: Mon, 8 Dec 2025 15:17:27 +0700
Subject: [PATCH 4/6] add disassembler test for v_wmma_i32_16x16x64_iu8

---
 llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_wmma_w32.txt | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_wmma_w32.txt 
b/llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_wmma_w32.txt
index 5d73cbd512edb..92031a0f28b54 100644
--- a/llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_wmma_w32.txt
+++ b/llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_wmma_w32.txt
@@ -1,6 +1,12 @@
 # NOTE: Assertions have been autogenerated by utils/update_mc_test_checks.py 
UTC_ARGS: --version 5
 # RUN: llvm-mc -disassemble -triple=amdgcn -mcpu=gfx1250 -show-encoding %s | 
FileCheck --check-prefix=GFX1250 %s
 
+0x10,0x00,0x72,0xcc,0x00,0x11,0x42,0x1c
+# GFX1250: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] ; 
encoding: [0x10,0x00,0x72,0xcc,0x00,0x11,0x42,0x1c]
+
+0x10,0x80,0x72,0xcc,0x00,0x11,0x42,0x1c
+# GFX1250: v_wmma_i32_16x16x64_iu8 v[16:23], v[0:7], v[8:15], v[16:23] clamp ; 
encoding: [0x10,0x80,0x72,0xcc,0x00,0x11,0x42,0x1c]
+
 0x18,0x00,0x68,0xcc,0x00,0x11,0x72,0x1c
 # GFX1250: v_swmmac_bf16_16x16x64_bf16 v[24:27], v[0:7], v[8:23], v28 ; 
encoding: [0x18,0x00,0x68,0xcc,0x00,0x11,0x72,0x1c]
 

>From 429f71899cb7b9eaeba0686210db036b4f84fcf8 Mon Sep 17 00:00:00 2001
From: 0xzre <[email protected]>
Date: Sun, 14 Dec 2025 09:26:23 +0700
Subject: [PATCH 5/6] [AMDGPU] auto upgrade wmma iu8 clamp and update
 builtins/tests

---
 clang/include/clang/Basic/BuiltinsAMDGPU.def  |  2 +-
 clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp   | 18 +++++++++++++++
 clang/lib/Sema/SemaAMDGPU.cpp                 |  3 +++
 .../builtins-amdgcn-gfx1250-wmma-w32.cl       | 11 ++++++++++
 ...ins-amdgcn-error-gfx1250-wmma-w32-param.cl |  7 +++++-
 llvm/lib/IR/AutoUpgrade.cpp                   | 22 +++++++++++++++++++
 .../Bitcode/amdgpu-wmma-iu8-clamp-upgrade.ll  | 17 ++++++++++++++
 7 files changed, 78 insertions(+), 2 deletions(-)
 create mode 100644 llvm/test/Bitcode/amdgpu-wmma-iu8-clamp-upgrade.ll

diff --git a/clang/include/clang/Basic/BuiltinsAMDGPU.def 
b/clang/include/clang/Basic/BuiltinsAMDGPU.def
index ebdac12ce107b..d91b21cbd969a 100644
--- a/clang/include/clang/Basic/BuiltinsAMDGPU.def
+++ b/clang/include/clang/Basic/BuiltinsAMDGPU.def
@@ -856,7 +856,7 @@ TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_fp8_fp8, 
"V8hV8iV8iIsV8hIbIb",
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_fp8_bf8, 
"V8hV8iV8iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_bf8_fp8, 
"V8hV8iV8iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x64_bf8_bf8, 
"V8hV8iV8iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
-TARGET_BUILTIN(__builtin_amdgcn_wmma_i32_16x16x64_iu8, 
"V8iIbV8iIbV8iV8iIbIbIb", "nc", "gfx1250-insts,wavefrontsize32")
+TARGET_BUILTIN(__builtin_amdgcn_wmma_i32_16x16x64_iu8, 
"V8iIbV8iIbV8iV8iIbIb.", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x128_fp8_fp8, 
"V8hV16iV16iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x128_fp8_bf8, 
"V8hV16iV16iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_wmma_f16_16x16x128_bf8_fp8, 
"V8hV16iV16iIsV8hIbIb", "nc", "gfx1250-insts,wavefrontsize32")
diff --git a/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp 
b/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
index eabdc370da6b4..3f2620761f574 100644
--- a/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
+++ b/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
@@ -1665,6 +1665,24 @@ Value *CodeGenFunction::EmitAMDGPUBuiltinExpr(unsigned 
BuiltinID,
     if (AppendFalseForOpselArg)
       Args.push_back(Builder.getFalse());
 
+    if (BuiltinID == AMDGPU::BI__builtin_amdgcn_wmma_i32_16x16x64_iu8) {
+      if (Args.size() == 7)
+        Args.push_back(Builder.getFalse());
+
+      auto ToBool = [&](Value *V) {
+        if (V->getType()->isIntegerTy(1))
+          return V;
+        return Builder.CreateIntCast(V, Builder.getInt1Ty(), false);
+      };
+
+      // Ensure predicate-like operands are i1 to match intrinsic signature.
+      Args[0] = ToBool(Args[0]);
+      Args[2] = ToBool(Args[2]);
+      Args[5] = ToBool(Args[5]);
+      Args[6] = ToBool(Args[6]);
+      Args[7] = ToBool(Args[7]);
+    }
+
     SmallVector<llvm::Type *, 6> ArgTypes;
     if (NeedReturnType)
       ArgTypes.push_back(ConvertType(E->getType()));
diff --git a/clang/lib/Sema/SemaAMDGPU.cpp b/clang/lib/Sema/SemaAMDGPU.cpp
index cece22092bb14..1d85d8bb579db 100644
--- a/clang/lib/Sema/SemaAMDGPU.cpp
+++ b/clang/lib/Sema/SemaAMDGPU.cpp
@@ -71,6 +71,9 @@ bool SemaAMDGPU::CheckAMDGCNBuiltinFunctionCall(unsigned 
BuiltinID,
   case AMDGPU::BI__builtin_amdgcn_get_fpenv:
   case AMDGPU::BI__builtin_amdgcn_set_fpenv:
     return false;
+  case AMDGPU::BI__builtin_amdgcn_wmma_i32_16x16x64_iu8:
+    // Legacy form omitted the optional clamp operand
+    return SemaRef.checkArgCountRange(TheCall, 7, 8);
   case AMDGPU::BI__builtin_amdgcn_atomic_inc32:
   case AMDGPU::BI__builtin_amdgcn_atomic_inc64:
   case AMDGPU::BI__builtin_amdgcn_atomic_dec32:
diff --git a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl 
b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
index 41c2eb2155b89..bfae3299f8e95 100644
--- a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
+++ b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
@@ -157,6 +157,17 @@ void test_amdgcn_wmma_i32_16x16x64_iu8(global v8i* out, 
v8i a, v8i b, v8i c)
   *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, true, 
false);
 }
 
+// CHECK-GFX1250-LABEL: @test_amdgcn_wmma_i32_16x16x64_iu8_no_clamp(
+// CHECK-GFX1250-NEXT:  entry:
+// CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x i32> 
@llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 false, <8 x i32> [[A:%.*]], 
i1 false, <8 x i32> [[B:%.*]], <8 x i32> [[C:%.*]], i1 false, i1 false, i1 
false)
+// CHECK-GFX1250-NEXT:    store <8 x i32> [[TMP0]], ptr addrspace(1) 
[[OUT:%.*]], align 32, !tbaa [[TBAA4]]
+// CHECK-GFX1250-NEXT:    ret void
+//
+void test_amdgcn_wmma_i32_16x16x64_iu8_no_clamp(global v8i* out, v8i a, v8i b, 
v8i c)
+{
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, false);
+}
+
 // CHECK-GFX1250-LABEL: @test_amdgcn_wmma_f32_16x16x128_f8f6f4(
 // CHECK-GFX1250-NEXT:  entry:
 // CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = shufflevector <16 x i32> [[B:%.*]], 
<16 x i32> poison, <12 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, 
i32 7, i32 8, i32 9, i32 10, i32 11>
diff --git 
a/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl 
b/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl
index 8821524fde2db..8ca02fccc9007 100644
--- a/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl
+++ b/clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl
@@ -112,7 +112,12 @@ void test_amdgcn_wmma_i32_16x16x64_iu8(global v8i* out, 
v8i a, v8i b, v8i c, int
   *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, mod, b, c, false, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
   *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, mod, false, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
   *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, mod, 
false); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
-  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, false, 
mod); // expected-error {{'__builtin_amdgcn_wmma_i32_16x16x64_iu8' must be a 
constant integer}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, false, 
mod);
+}
+
+void test_amdgcn_wmma_i32_16x16x64_iu8_too_many(global v8i *out, v8i a, v8i b, 
v8i c)
+{
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, false, 
false, false); // expected-error {{too many arguments to function call, 
expected at most 8, have 9}}
 }
 
 void test_amdgcn_wmma_f32_16x16x128_f8f6f4(global v8f* out, v16i a, v16i b, 
v8f c, int mod)
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index 487db134b0df3..56090db82a6a2 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -33,6 +33,7 @@
 #include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/IntrinsicsAArch64.h"
 #include "llvm/IR/IntrinsicsARM.h"
+#include "llvm/IR/IntrinsicsAMDGPU.h"
 #include "llvm/IR/IntrinsicsNVPTX.h"
 #include "llvm/IR/IntrinsicsRISCV.h"
 #include "llvm/IR/IntrinsicsWebAssembly.h"
@@ -1219,6 +1220,12 @@ static bool upgradeIntrinsicFunction1(Function *F, 
Function *&NewFn,
         break; // No other 'amdgcn.atomic.*'
       }
 
+      if (Name.starts_with("wmma.i32.16x16x64.iu8") && F->arg_size() == 7) {
+        // Legacy wmma iu8 intrinsic without the optional clamp operand.
+        NewFn = nullptr;
+        return true;
+      }
+
       if (Name.consume_front("ds.") || Name.consume_front("global.atomic.") ||
           Name.consume_front("flat.atomic.")) {
         if (Name.starts_with("fadd") ||
@@ -4504,6 +4511,21 @@ static Value *upgradeARMIntrinsicCall(StringRef Name, 
CallBase *CI, Function *F,
 //
 static Value *upgradeAMDGCNIntrinsicCall(StringRef Name, CallBase *CI,
                                          Function *F, IRBuilder<> &Builder) {
+  if (Name.starts_with("wmma.i32.16x16x64.iu8")) {
+    // Legacy WMMA IU8 intrinsic lacked the optional clamp operand. Append
+    // clamp=false for compatibility.
+    if (CI->arg_size() != 7)
+      return nullptr;
+
+    SmallVector<Value *, 8> Args(CI->args().begin(), CI->args().end());
+    Args.push_back(Builder.getFalse());
+
+    Function *NewDecl = Intrinsic::getOrInsertDeclaration(
+      F->getParent(), Intrinsic::amdgcn_wmma_i32_16x16x64_iu8,
+      {CI->getArgOperand(4)->getType(), CI->getArgOperand(1)->getType()});
+    return Builder.CreateCall(NewDecl, Args);
+  }
+
   AtomicRMWInst::BinOp RMWOp =
       StringSwitch<AtomicRMWInst::BinOp>(Name)
           .StartsWith("ds.fadd", AtomicRMWInst::FAdd)
diff --git a/llvm/test/Bitcode/amdgpu-wmma-iu8-clamp-upgrade.ll 
b/llvm/test/Bitcode/amdgpu-wmma-iu8-clamp-upgrade.ll
new file mode 100644
index 0000000000000..ea55c518bfca6
--- /dev/null
+++ b/llvm/test/Bitcode/amdgpu-wmma-iu8-clamp-upgrade.ll
@@ -0,0 +1,17 @@
+; RUN: llvm-as < %s | llvm-dis | FileCheck %s
+
+; Verify that the legacy WMMA IU8 intrinsic without the clamp operand is
+; upgraded by appending clamp=false.
+
+define <8 x i32> @wmma_legacy(<8 x i32> %a, <8 x i32> %b, <8 x i32> %c) {
+; CHECK-LABEL: @wmma_legacy(
+; CHECK: call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(i1 
false, <8 x i32> %a, i1 false, <8 x i32> %b, <8 x i32> %c, i1 false, i1 false, 
i1 false)
+; CHECK: ret <8 x i32>
+  %res = call <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(
+      i1 false, <8 x i32> %a, i1 false, <8 x i32> %b, <8 x i32> %c,
+      i1 false, i1 false)
+  ret <8 x i32> %res
+}
+
+declare <8 x i32> @llvm.amdgcn.wmma.i32.16x16x64.iu8.v8i32.v8i32(
+    i1, <8 x i32>, i1, <8 x i32>, <8 x i32>, i1, i1)

>From 9e666a6e37a2ff775777685de47728c90b043bd2 Mon Sep 17 00:00:00 2001
From: 0xzre <[email protected]>
Date: Sun, 14 Dec 2025 09:29:18 +0700
Subject: [PATCH 6/6] [AMDGPU] document wmma iu8 clamp default

---
 llvm/docs/AMDGPUUsage.rst | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/llvm/docs/AMDGPUUsage.rst b/llvm/docs/AMDGPUUsage.rst
index 3e7a5dfc504ae..a1d8b9a2d9358 100644
--- a/llvm/docs/AMDGPUUsage.rst
+++ b/llvm/docs/AMDGPUUsage.rst
@@ -1428,7 +1428,6 @@ The AMDGPU backend implements the following LLVM IR 
intrinsics.
                                                    with two i32 operands 
(holding a vector of 8 4bit values), summed
                                                    with the third i32 operand. 
The i1 fourth operand is used to clamp
                                                    the output.
-
   llvm.amdgcn.sdot2                                Provides direct access to 
v_dot2_i32_i16 across targets which
                                                    support such instructions. 
This performs a signed dot product
                                                    with two v2i16 operands, 
summed with the third i32 operand. The
@@ -1607,6 +1606,14 @@ The AMDGPU backend implements the following LLVM IR 
intrinsics.
 
    List AMDGPU intrinsics.
 
+WMMA clamp operand
+~~~~~~~~~~~~~~~~~~
+
+The WMMA integer matrix multiply intrinsics and C builtins (IU4/IU8, wave32 and
+wave64 forms) accept an optional boolean clamp operand. It defaults to 0 (no
+saturation) for backward compatibility. When set, the hardware clamps the
+32-bit accumulation result instead of allowing wraparound.
+
 '``llvm.amdgcn.cooperative.atomic``' Intrinsics
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 

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