[clang] [llvm] [HLSL] Implement support for HLSL intrinsic - saturate (PR #104619)

[Farzon Lotfi via cfe-commits]

================
@@ -362,6 +364,34 @@ static bool expandClampIntrinsic(CallInst *Orig, 
Intrinsic::ID ClampIntrinsic) {
   return true;
 }
 
+static bool expandSaturateIntrinsic(CallInst *SaturateCall) {
+  FunctionType *FT = SaturateCall->getFunctionType();
+  Type *FTRetTy = FT->getReturnType();
+  assert(FTRetTy == FT->getParamType(0) &&
----------------
farzonl wrote:

I think we should drop this for now. We likely won't be preserving any 
intrinsic specific behaviors.

https://github.com/llvm/llvm-project/pull/104619
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