[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:

@farzonl Apply the suggestion, although you can't really split into 2 distinct set cleanly (common + vk and common + cl) due to the ID assignment (part is done dynamically). So I went for a unique set and diagnose when vk builtins are used with spirv32 or spirv32 or when cl builtins are used with spirv.

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