[clang] [llvm] [mlir] [AMDGPU] add clamp immediate operand to WMMA iu8 intrinsic (PR #171069)

[Matt Arsenault via llvm-commits]

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@@ -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)
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arsenm wrote:

Can move the arg size check above the name check 

https://github.com/llvm/llvm-project/pull/171069