diff options
Diffstat (limited to 'clang/lib/CodeGen')
| -rw-r--r-- | clang/lib/CodeGen/TargetInfo.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/clang/lib/CodeGen/TargetInfo.cpp b/clang/lib/CodeGen/TargetInfo.cpp index 10050acad9d..4ccdedbd7f9 100644 --- a/clang/lib/CodeGen/TargetInfo.cpp +++ b/clang/lib/CodeGen/TargetInfo.cpp @@ -3996,8 +3996,12 @@ void ARMABIInfo::computeInfo(CGFunctionInfo &FI) const { // GPRs from being used. In this situation, the current argument could // only be allocated by rule C.8, so rule C.6 would mark these GPRs as // unusable anyway. + // We do not have to do this if the argument is being passed ByVal, as the + // backend can handle that situation correctly. const bool StackUsed = PreAllocationGPRs > NumGPRs || PreAllocationVFPs > NumVFPs; - if (!IsCPRC && PreAllocationGPRs < NumGPRs && AllocatedGPRs > NumGPRs && StackUsed) { + const bool IsByVal = I.info.isIndirect() && I.info.getIndirectByVal(); + if (!IsCPRC && PreAllocationGPRs < NumGPRs && AllocatedGPRs > NumGPRs && + StackUsed && !IsByVal) { llvm::Type *PaddingTy = llvm::ArrayType::get( llvm::Type::getInt32Ty(getVMContext()), NumGPRs - PreAllocationGPRs); if (I.info.canHaveCoerceToType()) { |
