6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2025-09-24 23:28:41 +00:00
Code Issues Projects Releases Wiki Activity

Teach FunctionAttrs about the VAArg instruction.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118627 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2010-11-09 20:17:38 +00:00
parent 6d44d64f61
commit 4cf0dcfb44
2 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
lib/Transforms/IPO/FunctionAttrs.cpp
View File

@@ -195,6 +195,13 @@ bool FunctionAttrs::AddReadAttrs(const CallGraphSCC &SCC) {
if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true))
continue;
}
} else if (VAArgInst *VI = dyn_cast<VAArgInst>(I)) {
// Ignore vaargs on local memory.
AliasAnalysis::Location Loc(VI->getPointerOperand(),
AliasAnalysis::UnknownSize,
VI->getMetadata(LLVMContext::MD_tbaa));
if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true))
continue;
}
// Any remaining instructions need to be taken seriously! Check if they