maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

Fix 46594 - Alignment assertion failure in instcombine

This commit is contained in:
Guillaume Chatelet 2020-07-06 08:44:49 +00:00
parent 5daa39aa4c
commit 04288e93be
1 changed files with 5 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
llvm/lib/Transforms/InstCombine/InstCombineCalls.cpp
View File

@ -4540,10 +4540,11 @@ static void annotateAnyAllocSite(CallBase &Call, const TargetLibraryInfo *TLI) {
Call.getContext(), Op1C->getZExtValue()));
// Add alignment attribute if alignment is a power of two constant.
if (Op0C && Op0C->getValue().ult(llvm::Value::MaximumAlignment)) {
if (MaybeAlign AlignmentVal = Op0C->getMaybeAlignValue())
Call.addAttribute(
AttributeList::ReturnIndex,
Attribute::getWithAlignment(Call.getContext(), *AlignmentVal));
uint64_t AlignmentVal = Op0C->getZExtValue();
if (llvm::isPowerOf2_64(AlignmentVal))
Call.addAttribute(AttributeList::ReturnIndex,
Attribute::getWithAlignment(Call.getContext(),
Align(AlignmentVal)));
}
} else if (isReallocLikeFn(&Call, TLI) && Op1C) {
Call.addAttribute(AttributeList::ReturnIndex,