llvmbot wrote:

<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-llvm-analysis

@llvm/pr-subscribers-clang-codegen

Author: Shilei Tian (shiltian)

<details>
<summary>Changes</summary>



---

Patch is 87.70 KiB, truncated to 20.00 KiB below, full version: 
https://github.com/llvm/llvm-project/pull/174310.diff


18 Files Affected:

- (modified) clang/include/clang/Basic/BuiltinsAMDGPU.def (+2-2) 
- (modified) clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp (+14) 
- (modified) clang/lib/Sema/SemaAMDGPU.cpp (+35) 
- (modified) clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl 
(+24-2) 
- (modified) 
clang/test/SemaOpenCL/builtins-amdgcn-error-gfx1250-wmma-w32-param.cl (+6) 
- (modified) llvm/include/llvm/IR/IntrinsicsAMDGPU.td (+23-4) 
- (modified) llvm/lib/IR/AutoUpgrade.cpp (+57) 
- (modified) llvm/lib/Target/AMDGPU/SIISelLowering.cpp (+7-5) 
- (modified) llvm/lib/Target/AMDGPU/VOP3PInstructions.td (+9-9) 
- (modified) llvm/test/Analysis/UniformityAnalysis/AMDGPU/intrinsics.ll (+6-6) 
- (added) llvm/test/Bitcode/amdgpu-wmma-clamp-upgrade.ll (+25) 
- (modified) llvm/test/CodeGen/AMDGPU/wmma-coececution-valu-hazards.mir 
(+26-26) 
- (modified) llvm/test/CodeGen/AMDGPU/wmma-hazards-gfx1250-w32.mir (+20-20) 
- (modified) llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32.s (+10) 
- (modified) llvm/test/MC/AMDGPU/gfx1250_asm_wmma_w32_err.s (-6) 
- (modified) llvm/test/MC/Disassembler/AMDGPU/gfx1250_dasm_wmma_w32.txt (+6) 
- (modified) mlir/include/mlir/Dialect/LLVMIR/ROCDLOps.td (+5-4) 
- (modified) mlir/test/Target/LLVMIR/rocdl.mlir (+6-6) 


``````````diff
diff --git a/clang/include/clang/Basic/BuiltinsAMDGPU.def 
b/clang/include/clang/Basic/BuiltinsAMDGPU.def
index 24b79c3b69b67..7faf73b7628fe 100644
--- a/clang/include/clang/Basic/BuiltinsAMDGPU.def
+++ b/clang/include/clang/Basic/BuiltinsAMDGPU.def
@@ -857,7 +857,7 @@ 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, 
"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")
@@ -885,7 +885,7 @@ 
TARGET_BUILTIN(__builtin_amdgcn_swmmac_f16_16x16x128_fp8_fp8, "V8hV8iV16iV8hiIbI
 TARGET_BUILTIN(__builtin_amdgcn_swmmac_f16_16x16x128_fp8_bf8, 
"V8hV8iV16iV8hiIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_swmmac_f16_16x16x128_bf8_fp8, 
"V8hV8iV16iV8hiIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_swmmac_f16_16x16x128_bf8_bf8, 
"V8hV8iV16iV8hiIbIb", "nc", "gfx1250-insts,wavefrontsize32")
-TARGET_BUILTIN(__builtin_amdgcn_swmmac_i32_16x16x128_iu8, 
"V8iIbV8iIbV16iV8iiIbIb", "nc", "gfx1250-insts,wavefrontsize32")
+TARGET_BUILTIN(__builtin_amdgcn_swmmac_i32_16x16x128_iu8, 
"V8iIbV8iIbV16iV8iiIbIb.", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_swmmac_f32_16x16x64_f16, 
"V8fIbV16hIbV32hV8fiIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 TARGET_BUILTIN(__builtin_amdgcn_swmmac_f16_16x16x64_f16, 
"V8hIbV16hIbV32hV8hiIbIb", "nc", "gfx1250-insts,wavefrontsize32")
 
diff --git a/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp 
b/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
index eabdc370da6b4..a8a5bc348f00c 100644
--- a/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
+++ b/clang/lib/CodeGen/TargetBuiltins/AMDGPU.cpp
@@ -1665,6 +1665,20 @@ Value *CodeGenFunction::EmitAMDGPUBuiltinExpr(unsigned 
BuiltinID,
     if (AppendFalseForOpselArg)
       Args.push_back(Builder.getFalse());
 
+    // Handle the optional clamp argument of the following two builtins.
+    if (BuiltinID == AMDGPU::BI__builtin_amdgcn_wmma_i32_16x16x64_iu8) {
+      if (Args.size() == 7)
+        Args.push_back(Builder.getFalse());
+      assert(Args.size() == 8 && "Expected 8 arguments");
+      Args[7] = Builder.CreateZExtOrTrunc(Args[7], Builder.getInt1Ty());
+    } else if (BuiltinID ==
+               AMDGPU::BI__builtin_amdgcn_swmmac_i32_16x16x128_iu8) {
+      if (Args.size() == 8)
+        Args.push_back(Builder.getFalse());
+      assert(Args.size() == 9 && "Expected 9 arguments");
+      Args[8] = Builder.CreateZExtOrTrunc(Args[8], Builder.getInt1Ty());
+    }
+
     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..d445d579baa96 100644
--- a/clang/lib/Sema/SemaAMDGPU.cpp
+++ b/clang/lib/Sema/SemaAMDGPU.cpp
@@ -1,3 +1,4 @@
+
 //===------ SemaAMDGPU.cpp ------- AMDGPU target-specific routines 
--------===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM 
Exceptions.
@@ -255,6 +256,40 @@ bool SemaAMDGPU::CheckAMDGCNBuiltinFunctionCall(unsigned 
BuiltinID,
            (SemaRef.BuiltinConstantArg(TheCall, ArgCount, Result)) ||
            (SemaRef.BuiltinConstantArg(TheCall, (ArgCount - 1), Result));
   }
+  case AMDGPU::BI__builtin_amdgcn_wmma_i32_16x16x64_iu8:
+  case AMDGPU::BI__builtin_amdgcn_swmmac_i32_16x16x128_iu8: {
+    if (BuiltinID == AMDGPU::BI__builtin_amdgcn_wmma_i32_16x16x64_iu8) {
+      if (SemaRef.checkArgCountRange(TheCall, 7, 8))
+        return true;
+      if (TheCall->getNumArgs() == 7)
+        return false;
+    } else if (BuiltinID ==
+               AMDGPU::BI__builtin_amdgcn_swmmac_i32_16x16x128_iu8) {
+      if (SemaRef.checkArgCountRange(TheCall, 8, 9))
+        return true;
+      if (TheCall->getNumArgs() == 8)
+        return false;
+    }
+    // Check if the last argument (clamp operand) is a constant and is
+    // convertible to bool.
+    Expr *ClampArg = TheCall->getArg(TheCall->getNumArgs() - 1);
+    // 1) Ensure clamp argument is a constant expression
+    llvm::APSInt ClampValue;
+    if (!SemaRef.VerifyIntegerConstantExpression(ClampArg, &ClampValue)
+             .isUsable())
+      return true;
+    // 2) Check if the argument can be converted to bool type
+    if (!SemaRef.Context.hasSameType(ClampArg->getType(),
+                                     SemaRef.Context.BoolTy)) {
+      // Try to convert to bool
+      QualType BoolTy = SemaRef.Context.BoolTy;
+      ExprResult ClampExpr(ClampArg);
+      SemaRef.CheckSingleAssignmentConstraints(BoolTy, ClampExpr);
+      if (ClampExpr.isInvalid())
+        return true;
+    }
+    return false;
+  }
   default:
     return false;
   }
diff --git a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl 
b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
index afad4bb15b528..a463ba7ab41c3 100644
--- a/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
+++ b/clang/test/CodeGenOpenCL/builtins-amdgcn-gfx1250-wmma-w32.cl
@@ -148,7 +148,7 @@ 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 [[TBAA8]]
 // CHECK-GFX1250-NEXT:    ret void
 //
@@ -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);
 }
 
+// CHECK-GFX1250-LABEL: @test_amdgcn_wmma_i32_16x16x64_iu8_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 true, i1 true)
+// CHECK-GFX1250-NEXT:    store <8 x i32> [[TMP0]], ptr addrspace(1) 
[[OUT:%.*]], align 32, !tbaa [[TBAA8]]
+// CHECK-GFX1250-NEXT:    ret void
+//
+void test_amdgcn_wmma_i32_16x16x64_iu8_clamp(global v8i* out, v8i a, v8i b, 
v8i c)
+{
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, true, 1);
+}
+
 // 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>
@@ -459,7 +470,7 @@ void test_amdgcn_swmmac_f16_16x16x128_bf8_bf8(global v8h* 
out, v8i a, v16i b, v8
 
 // CHECK-GFX1250-LABEL: @test_amdgcn_swmmac_i32_16x16x128_iu8(
 // CHECK-GFX1250-NEXT:  entry:
-// CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x i32> 
@llvm.amdgcn.swmmac.i32.16x16x128.iu8.v8i32.v8i32.v16i32.i32(i1 false, <8 x 
i32> [[A:%.*]], i1 false, <16 x i32> [[B:%.*]], <8 x i32> [[C:%.*]], i32 
[[INDEX:%.*]], i1 false, i1 true)
+// CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x i32> 
@llvm.amdgcn.swmmac.i32.16x16x128.iu8.v8i32.v8i32.v16i32.i32(i1 false, <8 x 
i32> [[A:%.*]], i1 false, <16 x i32> [[B:%.*]], <8 x i32> [[C:%.*]], i32 
[[INDEX:%.*]], i1 false, i1 true, i1 false)
 // CHECK-GFX1250-NEXT:    store <8 x i32> [[TMP0]], ptr addrspace(1) 
[[OUT:%.*]], align 32, !tbaa [[TBAA8]]
 // CHECK-GFX1250-NEXT:    ret void
 //
@@ -468,6 +479,17 @@ void test_amdgcn_swmmac_i32_16x16x128_iu8(global v8i* out, 
v8i a, v16i b, v8i c,
   *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, 
false, true);
 }
 
+// CHECK-GFX1250-LABEL: @test_amdgcn_swmmac_i32_16x16x128_iu8_clamp(
+// CHECK-GFX1250-NEXT:  entry:
+// CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x i32> 
@llvm.amdgcn.swmmac.i32.16x16x128.iu8.v8i32.v8i32.v16i32.i32(i1 false, <8 x 
i32> [[A:%.*]], i1 false, <16 x i32> [[B:%.*]], <8 x i32> [[C:%.*]], i32 
[[INDEX:%.*]], i1 false, i1 true, i1 true)
+// CHECK-GFX1250-NEXT:    store <8 x i32> [[TMP0]], ptr addrspace(1) 
[[OUT:%.*]], align 32, !tbaa [[TBAA8]]
+// CHECK-GFX1250-NEXT:    ret void
+//
+void test_amdgcn_swmmac_i32_16x16x128_iu8_clamp(global v8i* out, v8i a, v16i 
b, v8i c, int index)
+{
+  *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, 
false, true, 1);
+}
+
 // CHECK-GFX1250-LABEL: @test_amdgcn_swmmac_f32_16x16x64_f16(
 // CHECK-GFX1250-NEXT:  entry:
 // CHECK-GFX1250-NEXT:    [[TMP0:%.*]] = tail call <8 x float> 
@llvm.amdgcn.swmmac.f32.16x16x64.f16.v8f32.v16f16.v32f16.i32(i1 false, <16 x 
half> [[A:%.*]], i1 false, <32 x half> [[B:%.*]], <8 x float> [[C:%.*]], i32 
[[INDEX:%.*]], i1 false, i1 true)
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..e3e0cc3f596c7 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
@@ -112,6 +112,9 @@ 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); // 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(0, a, 0, b, c, false, true, 
32.0f); // expected-error {{integer constant expression must have integer type, 
not 'double'}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, true, 
mod); // expected-error {{expression is not an integer constant expression}}
+  *out = __builtin_amdgcn_wmma_i32_16x16x64_iu8(0, a, 0, b, c, false, true, 
true, 32.0f); // 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)
@@ -286,6 +289,9 @@ void test_amdgcn_swmmac_i32_16x16x128_iu8(global v8i* out, 
v8i a, v16i b, v8i c,
   *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, mod, b, c, index, 
false, false); // expected-error {{'__builtin_amdgcn_swmmac_i32_16x16x128_iu8' 
must be a constant integer}}
   *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, mod, 
false); // expected-error {{'__builtin_amdgcn_swmmac_i32_16x16x128_iu8' must be 
a constant integer}}
   *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, 
false, mod); // expected-error {{'__builtin_amdgcn_swmmac_i32_16x16x128_iu8' 
must be a constant integer}}
+  *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, 
false, true, 32.0f); // expected-error {{integer constant expression must have 
integer type, not 'double'}}
+  *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, 
false, true, mod); // expected-error {{expression is not an integer constant 
expression}}
+  *out = __builtin_amdgcn_swmmac_i32_16x16x128_iu8(0, a, 0, b, c, index, 
false, true, true, 32.0f); // expected-error {{too many arguments to function 
call, expected at most 9, have 10}}
 }
 
 void test_amdgcn_swmmac_f32_16x16x64_f16(global v8f* out, v16h a, v32h b, v8f 
c, int index, int mod)
diff --git a/llvm/include/llvm/IR/IntrinsicsAMDGPU.td 
b/llvm/include/llvm/IR/IntrinsicsAMDGPU.td
index f7d4b51c75168..2fb25bac43756 100644
--- a/llvm/include/llvm/IR/IntrinsicsAMDGPU.td
+++ b/llvm/include/llvm/IR/IntrinsicsAMDGPU.td
@@ -3902,7 +3902,7 @@ def int_amdgcn_global_store_async_from_lds_b128 :
   ClangBuiltin<"__builtin_amdgcn_global_store_async_from_lds_b128">, 
AMDGPUAsyncGlobalStoreFromLDS;
 
 // WMMA intrinsics.
-class AMDGPUWmmaIntrinsicModsAB<LLVMType AB, LLVMType CD> :
+class AMDGPUWmmaIntrinsicModsABClamp<LLVMType AB, LLVMType CD> :
   Intrinsic<
     [CD], // %D
     [
@@ -3913,8 +3913,9 @@ 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, IntrNoCreateUndefOrPoison]
 >;
 
@@ -4079,7 +4080,7 @@ def int_amdgcn_wmma_f32_16x16x128_fp8_fp8 : 
AMDGPUWmmaIntrinsicModsC<llvm_anyint
 def int_amdgcn_wmma_f32_16x16x128_fp8_bf8 : 
AMDGPUWmmaIntrinsicModsC<llvm_anyint_ty, llvm_anyfloat_ty>;
 def int_amdgcn_wmma_f32_16x16x128_bf8_fp8 : 
AMDGPUWmmaIntrinsicModsC<llvm_anyint_ty, llvm_anyfloat_ty>;
 def int_amdgcn_wmma_f32_16x16x128_bf8_bf8 : 
AMDGPUWmmaIntrinsicModsC<llvm_anyint_ty, llvm_anyfloat_ty>;
-def int_amdgcn_wmma_i32_16x16x64_iu8      : 
AMDGPUWmmaIntrinsicModsAB<llvm_anyint_ty, llvm_anyint_ty>;
+def int_amdgcn_wmma_i32_16x16x64_iu8      : 
AMDGPUWmmaIntrinsicModsABClamp<llvm_anyint_ty, llvm_anyint_ty>;
 def int_amdgcn_wmma_f32_16x16x128_f8f6f4  : AMDGPUWmmaIntrinsicModsC_MatrixFMT;
 def int_amdgcn_wmma_scale_f32_16x16x128_f8f6f4   : 
AMDGPUWmmaScaleIntrinsicModsC<llvm_i32_ty>;
 def int_amdgcn_wmma_scale16_f32_16x16x128_f8f6f4 : 
AMDGPUWmmaScaleIntrinsicModsC<llvm_i64_ty>;
@@ -4105,6 +4106,24 @@ class AMDGPUSWmmacIntrinsicABIdx<LLVMType A, LLVMType B, 
LLVMType CD, LLVMType I
      ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<2>>, ImmArg<ArgIndex<6>>, 
ImmArg<ArgIndex<7>>]
 >;
 
+class AMDGPUSWmmacIntrinsicABIdxClamp<LLVMType A, LLVMType B, LLVMType CD, 
LLVMType Index> :
+  Intrinsic<
+    [CD], // %D
+    [
+      llvm_i1_ty,       // %A_mod:  0 - none, 1 - neg
+      A,                // %A
+      llvm_i1_ty,       // %B_mod:  0 - none, 1 - neg
+      B,                // %B
+      LLVMMatchType<0>, // %C
+      Index,            // %Sparsity index for A
+      llvm_i1_ty,       // matrix_a_reuse
+      llvm_i1_ty,       // matrix_b_reuse
+      llvm_i1_ty,       // %clamp
+    ],
+    [IntrNoMem, IntrConvergent, IntrWillReturn, IntrNoCreateUndefOrPoison,
+     ImmArg<ArgIndex<0>>, ImmArg<ArgIndex<2>>, ImmArg<ArgIndex<6>>, 
ImmArg<ArgIndex<7>>, ImmArg<ArgIndex<8>>]
+>;
+
 defset list<Intrinsic> AMDGPUSWMMACIntrinsicsGFX1250 = {
 def int_amdgcn_swmmac_f32_16x16x64_f16      : 
AMDGPUSWmmacIntrinsicABIdx<llvm_anyfloat_ty, llvm_anyfloat_ty, 
llvm_anyfloat_ty, llvm_anyint_ty>;
 def int_amdgcn_swmmac_f32_16x16x64_bf16     : 
AMDGPUSWmmacIntrinsicABIdx<llvm_anyfloat_ty, llvm_anyfloat_ty, 
llvm_anyfloat_ty, llvm_anyint_ty>;
@@ -4119,7 +4138,7 @@ def int_amdgcn_swmmac_f16_16x16x128_fp8_fp8 : 
AMDGPUSWmmacIntrinsicIdxReuse<llvm
 def int_amdgcn_swmmac_f16_16x16x128_fp8_bf8 : 
AMDGPUSWmmacIntrinsicIdxReuse<llvm_anyint_ty, llvm_anyint_ty, llvm_anyfloat_ty, 
llvm_anyint_ty>;
 def int_amdgcn_swmmac_f16_16x16x128_bf8_fp8 : 
AMDGPUSWmmacIntrinsicIdxReuse<llvm_anyint_ty, llvm_anyint_ty, llvm_anyfloat_ty, 
llvm_anyint_ty>;
 def int_amdgcn_swmmac_f16_16x16x128_bf8_bf8 : 
AMDGPUSWmmacIntrinsicIdxReuse<llvm_anyint_ty, llvm_anyint_ty, llvm_anyfloat_ty, 
llvm_anyint_ty>;
-def int_amdgcn_swmmac_i32_16x16x128_iu8     : 
AMDGPUSWmmacIntrinsicABIdx<llvm_anyint_ty, llvm_anyint_ty, llvm_anyint_ty, 
llvm_anyint_ty>;
+def int_amdgcn_swmmac_i32_16x16x128_iu8     : 
AMDGPUSWmmacIntrinsicABIdxClamp<llvm_anyint_ty, llvm_anyint_ty, llvm_anyint_ty, 
llvm_anyint_ty>;
 }
 
 
diff --git a/llvm/lib/IR/AutoUpgrade.cpp b/llvm/lib/IR/AutoUpgrade.cpp
index cbb7b6ee4f3f5..d8b54c396df28 100644
--- a/llvm/lib/IR/AutoUpgrade.cpp
+++ b/llvm/lib/IR/AutoUpgrade.cpp
@@ -32,6 +32,7 @@
 #include "llvm/IR/IntrinsicInst.h"
 #include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/IntrinsicsAArch64.h"
+#include "llvm/IR/IntrinsicsAMDGPU.h"
 #include "llvm/IR/IntrinsicsARM.h"
 #include "llvm/IR/IntrinsicsNVPTX.h"
 #include "llvm/IR/IntrinsicsRISCV.h"
@@ -1284,6 +1285,18 @@ static bool upgradeIntrinsicFunction1(Function *F, 
Function *&NewFn,
         break; // No other 'amdgcn.atomic.*'
       }
 
+      // Legacy wmma iu intrinsics without the optional clamp operand.
+      if (F->getIntrinsicID() == Intrinsic::amdgcn_wmma_i32_16x16x64_iu8 &&
+          F->arg_size() == 7) {
+        NewFn = nullptr;
+        return true;
+      }
+      if (F->getIntrinsicID() == Intrinsic::amdgcn_swmmac_i32_16x16x128_iu8 &&
+          F->arg_size() == 8) {
+        NewFn = nullptr;
+        return true;
+      }
+
       if (Name.consume_front("ds.") || Name.consume_front("global.atomic.") ||
           Name.consume_front("flat.atomic.")) {
         if (Name.starts_with("fadd") ||
@@ -4620,6 +4633,50 @@ static Value *upgradeARMIntrinsicCall(StringRef Name, 
CallBase *CI, Function *F,
 //
 static Value *upgradeAMDGCNIntrinsicCall(StringRef Name, CallBase *CI,
                                          Function *F, IRBuilder<> &Builder) {
+  // Legacy WMMA iu intrinsics missed the optional clamp operand. Append 
clamp=0
+  // for compatibility.
+  auto UpgradeLegacyWMMAIUIntrinsicCall =
+      [](Function *F, CallBase *CI, IRBuilder<> &Builder,
+         ArrayRef<Type *> OverloadTys) -> Value * {
+    // Prepare arguments, append clamp=0 for compatibility
+    SmallVector<Value *, 10> Args(CI->args().begin(), CI->args().end());
+    Args.push_back(Builder.getFalse());
+
+    // Insert the declaration for the right overload types
+    Function *NewDecl = Intrinsic::getOrInsertDeclaration(
+        F->getParent(), F->getIntrinsicID(), OverloadTys);
+
+    // Copy operand bundles if any
+    SmallVector<OperandBundleDef, 1> Bundles;
+    CI->getOperandBundlesAsDefs(Bundles);
+
+    // Create the new call and copy calling properties
+    auto *NewCall = cast<CallInst>(Builder.CreateCall(NewDecl, Args, Bundles));
+    NewCall->setTailCallKind(cast<CallInst>(CI)->getTailCallKind());
+    NewCall->setCallingConv(CI->getCallingConv());
+    NewCall->setAttributes(CI->getAttributes());
+    NewCall->setDebugLoc(CI->getDebugLoc());
+    NewCall->copyMetadata(*CI);
+    return NewCall;
+  };
+
+  if (F->getIntrinsicID() == Intrinsic::amdgcn_wmma_i32_16x16x64_iu8) {
+    assert(CI->arg_size() == 7 && "Legacy int_amdgcn_wmma_i32_16x16x64_iu8 "
+                                  "intrinsic should have 7 arguments");
+    Type *T1 = CI->getArgOperand(4)->getType();
+    Type *T2 = CI->getArgOperand(1)->getType();
+    return UpgradeLegacyWMMAIUIntrinsicCall(F, CI, Builder, {T1, T2});
+  }
+  if (F->getIntrinsicID() == Intrinsic::amdgcn_swmmac_i32_16x16x128_iu8) {
+    assert(CI->arg_size() == 8 && "Legacy int_amdgcn_swmmac_i32_16x16x128_iu8 "
+                                  "intrinsic should have 8 arguments");
+    Type *T1 = CI->getArgOperand(4)->getType();
+    Type *T2 = CI->getArgOperand(1)->getType();
+    Type *T3 = CI->getArgOperand(3)->getType();
+    Type *T4 = CI->getArgOperand(5)->getType();
+    return UpgradeLegacyWMMAIUIntrinsicCall(F, CI, Builder, {T1, T2, T3, T4});
+  }
+
   AtomicRMWInst::BinOp RMWOp =
       StringSwitch<AtomicRMWInst::BinOp>(...
[truncated]

``````````

</details>


https://github.com/llvm/llvm-project/pull/174310
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