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

[Shilei Tian via llvm-commits]

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@@ -1665,6 +1665,13 @@ 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)
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shiltian wrote:

I'm not sure if that's a good idea to make it an optional argument. They are new builtins so I think we just want them to be a regular `i1` argument. In that case, you don't need any special handling here and other places.

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