[X86] Return illegal vectors in memory

pranavk · pranavk · commit 02c9a9406606 · 2025-01-07T14:18:32.000Z
When vector size doesn't fit in native machine vector size, we should
return vector via a hidden reference.
diff --git a/clang/lib/CodeGen/Targets/X86.cpp b/clang/lib/CodeGen/Targets/X86.cpp
@@ -2191,7 +2191,7 @@ ABIArgInfo X86_64ABIInfo::getIndirectReturnResult(QualType Ty) const {
   return getNaturalAlignIndirect(Ty);
 }
 
-static bool IsIllegalVector(QualType Ty, 
+static bool IsIllegalVector(QualType Ty,
                             uint64_t Size,
                             X86AVXABILevel AVXLevel) {
   if (const VectorType *VecTy = Ty->getAs<VectorType>()) {

Original file line number	Diff line number	Diff line change
`@@ -2191,7 +2191,7 @@ ABIArgInfo X86_64ABIInfo::getIndirectReturnResult(QualType Ty) const {`
`2191`	`2191`	`return getNaturalAlignIndirect(Ty);`
`2192`	`2192`	`}`
`2193`	`2193`
`2194`		`-static bool IsIllegalVector(QualType Ty,`
	`2194`	`+static bool IsIllegalVector(QualType Ty,`
`2195`	`2195`	`uint64_t Size,`
`2196`	`2196`	`X86AVXABILevel AVXLevel) {`
`2197`	`2197`	`if (const VectorType *VecTy = Ty->getAs<VectorType>()) {`