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[clang] fix emitvaarg when struct is null #72624

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[clang] fix emitvaarg when struct is null #72624

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4 changes: 2 additions & 2 deletions clang/lib/CodeGen/Targets/AArch64.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -526,7 +526,7 @@ Address AArch64ABIInfo::EmitAAPCSVAArg(Address VAListAddr, QualType Ty,
llvm::Type *BaseTy = CGF.ConvertType(Ty);
if (IsIndirect)
BaseTy = llvm::PointerType::getUnqual(BaseTy);
else if (AI.getCoerceToType())
else if (AI.canHaveCoerceToType() && AI.getCoerceToType())
BaseTy = AI.getCoerceToType();

unsigned NumRegs = 1;
Expand Down Expand Up @@ -594,7 +594,7 @@ Address AArch64ABIInfo::EmitAAPCSVAArg(Address VAListAddr, QualType Ty,
// Integer arguments may need to correct register alignment (for example a
// "struct { __int128 a; };" gets passed in x_2N, x_{2N+1}). In this case we
// align __gr_offs to calculate the potential address.
if (!IsFPR && !IsIndirect && TyAlign.getQuantity() > 8) {
if (!IsFPR && !IsIndirect && TyAlign.getQuantity() > 8 && !TySize.isZero()) {
int Align = TyAlign.getQuantity();

reg_offs = CGF.Builder.CreateAdd(
Expand Down