[clang] [llvm] [HLSL] implement elementwise firstbithigh hlsl builtin (PR #111082)

[Farzon Lotfi via cfe-commits]

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@@ -449,6 +449,15 @@ Register SPIRVGlobalRegistry::getOrCreateCompositeOrNull(
   return Res;
 }
 
+Register SPIRVGlobalRegistry::getOrCreateConstScalarOrVector(
+    uint64_t Val, MachineInstr &I, SPIRVType *SpvType,
+    const SPIRVInstrInfo &TII, bool ZeroAsNull) {
+  if (SpvType->getOpcode() == SPIRV::OpTypeVector)
+    return getOrCreateConstVector(Val, I, SpvType, TII, ZeroAsNull);
+  else
+    return getOrCreateConstInt(Val, I, SpvType, TII, ZeroAsNull);
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farzonl wrote:

Should we be checking `SpvType` if it is float or int like you did for vector before deciding to create a const int?

https://github.com/llvm/llvm-project/pull/111082