[llvm] [IR] Add TargetExtType::CanBeAlloca property (PR #99016)

[Jay Foad via llvm-commits]

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@@ -838,12 +838,14 @@ static TargetTypeInfo getTargetTypeInfo(const TargetExtType *Ty) {
     return TargetTypeInfo(PointerType::get(C, 0), TargetExtType::CanBeGlobal);
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jayfoad wrote:

I made a complete guess here that spirv.Image should not be used in allocas, so that I could use it as a test case. Please let me know if I got that wrong.

https://github.com/llvm/llvm-project/pull/99016