================
@@ -149,6 +149,57 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl
&gd, unsigned builtinID,
emitVAEnd(emitVAListRef(e->getArg(0)).getPointer());
return {};
+ case Builtin::BIalloca:
+ case Builtin::BI_alloca:
+ case Builtin::BI__builtin_alloca_uninitialized:
+ case Builtin::BI__builtin_alloca: {
+ // Get alloca size input
+ mlir::Value size = emitScalarExpr(e->getArg(0));
+
+ // The alignment of the alloca should correspond to __BIGGEST_ALIGNMENT__.
+ const TargetInfo &TI = getContext().getTargetInfo();
+ const CharUnits SuitableAlignmentInBytes =
----------------
andykaylor wrote:
```suggestion
const CharUnits suitableAlignmentInBytes =
```
https://github.com/llvm/llvm-project/pull/157116
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