[clang] [clang][SPIRV] Add builtin for OpGenericCastToPtrExplicit and its SPIR-V friendly binding (PR #137805)

[Victor Lomuller via cfe-commits]

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@@ -35,8 +35,10 @@ static constexpr Builtin::Info BuiltinInfos[] = {
 static_assert(std::size(BuiltinInfos) == NumBuiltins);
 
 llvm::SmallVector<Builtin::InfosShard>
-SPIRVTargetInfo::getTargetBuiltins() const {
-  return {{&BuiltinStrings, BuiltinInfos}};
+BaseSPIRTargetInfo::getTargetBuiltins() const {
+  if (getTriple().isSPIRV())
+    return {{&BuiltinStrings, BuiltinInfos}};
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Naghasan wrote:

Oh, that's a left over of my initial prototype in intel/llvm sorry. For historical reasons `spir` / `spir64` is also used there, so had to hack a bit to allow proper testing there. The change should be moving it to `BaseSPIRVTargetInfo` to only enable `spirv`, `spirv32` and `spirv64`. I updated the PR.

https://github.com/llvm/llvm-project/pull/137805