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[asan] extend the workaround for http://llvm.org/bugs/show_bug.cgi?id=11395: don't instrument the function at all on x86_32 if it has a large asm blob 

llvm-svn: 147953
This commit is contained in:
Kostya Serebryany 2012-01-11 18:15:23 +00:00
parent 6635ae1c17
commit 687d078192
1 changed files with 1 additions and 1 deletions
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2
llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp
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@ -617,6 +617,7 @@ bool AddressSanitizer::handleFunction(Module &M, Function &F) {
TempsToInstrument.clear();
for (BasicBlock::iterator BI = FI->begin(), BE = FI->end();
BI != BE; ++BI) {
if (LooksLikeCodeInBug11395(BI)) return false;
if ((isa<LoadInst>(BI) && ClInstrumentReads) ||
(isa<StoreInst>(BI) && ClInstrumentWrites)) {
Value *Addr = getLDSTOperand(BI);
@ -792,7 +793,6 @@ bool AddressSanitizer::poisonStackInFunction(Module &M, Function &F) {
BasicBlock &BB = *FI;
for (BasicBlock::iterator BI = BB.begin(), BE = BB.end();
BI != BE; ++BI) {
if (LooksLikeCodeInBug11395(BI)) return false;
if (isa<ReturnInst>(BI)) {
RetVec.push_back(BI);
continue;