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Revert "Prevent alias from pointing to weak aliases."

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This reverts commit r204781.

I will follow up to with msan folks to see what is what they
were trying to do with aliases to weak aliases.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204784 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola
2014-03-26 06:14:40 +00:00
parent 360ee97179
commit 72db10a995
18 changed files with 61 additions and 58 deletions
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3
lib/Transforms/Instrumentation/DataFlowSanitizer.cpp
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@ -554,7 +554,8 @@ bool DataFlowSanitizer::runOnModule(Module &M) {
++i;
// Don't stop on weak. We assume people aren't playing games with the
// instrumentedness of overridden weak aliases.
if (Function *F = dyn_cast<Function>(GA->getAliasedGlobal())) {
if (Function *F = dyn_cast<Function>(
GA->resolveAliasedGlobal(/*stopOnWeak=*/false))) {
bool GAInst = isInstrumented(GA), FInst = isInstrumented(F);
if (GAInst && FInst) {
addGlobalNamePrefix(GA);