[clang] [llvm] [AMDGPU] Add target intrinsic for s_prefetch_data (PR #107133)

[Shilei Tian via cfe-commits]

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@@ -19489,6 +19489,12 @@ Value *CodeGenFunction::EmitAMDGPUBuiltinExpr(unsigned BuiltinID,
         F, {EmitScalarExpr(E->getArg(0)), EmitScalarExpr(E->getArg(1)),
             EmitScalarExpr(E->getArg(2)), EmitScalarExpr(E->getArg(3))});
   }
+  case AMDGPU::BI__builtin_amdgcn_s_prefetch_data: {
+    llvm::Value *Ptr = EmitScalarExpr(E->getArg(0));
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shiltian wrote:

`emitBuiltinWithOneOverloadedType` doesn't have to have a return value

https://github.com/llvm/llvm-project/pull/107133