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--- Merging r128212 into '.':

Browse Source 
U    lib/Transforms/Scalar/CodeGenPrepare.cpp
--- Merging r128217 into '.':
G    lib/Transforms/Scalar/CodeGenPrepare.cpp


git-svn-id: https://llvm.org/svn/llvm-project/llvm/branches/release_29@128223 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Bill Wendling 2011-03-24 18:07:13 +00:00
parent 5bc870c8c3
commit 76c60c3241
1 changed files with 7 additions and 3 deletions
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10
lib/Transforms/Scalar/CodeGenPrepare.cpp
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@ -602,7 +602,9 @@ bool CodeGenPrepare::DupRetToEnableTailCallOpts(ReturnInst *RI) {
if (&*BI != RI) if (&*BI != RI)
return false; return false;
} else { } else {
if (&*BB->begin() != RI) BasicBlock::iterator BI = BB->begin();
while (isa<DbgInfoIntrinsic>(BI)) ++BI;
if (&*BI != RI)
return false; return false;
} }
@ -626,10 +628,12 @@ bool CodeGenPrepare::DupRetToEnableTailCallOpts(ReturnInst *RI) {
BasicBlock::InstListType &InstList = (*PI)->getInstList(); BasicBlock::InstListType &InstList = (*PI)->getInstList();
BasicBlock::InstListType::reverse_iterator RI = InstList.rbegin(); BasicBlock::InstListType::reverse_iterator RI = InstList.rbegin();
BasicBlock::InstListType::reverse_iterator RE = InstList.rend(); BasicBlock::InstListType::reverse_iterator RE = InstList.rend();
if (++RI == RE) do { ++RI; } while (RI != RE && isa<DbgInfoIntrinsic>(&*RI));
if (RI == RE)
continue; continue;
CallInst *CI = dyn_cast<CallInst>(&*RI); CallInst *CI = dyn_cast<CallInst>(&*RI);
if (CI && CI->getType()->isVoidTy() && TLI->mayBeEmittedAsTailCall(CI)) if (CI && CI->use_empty() && TLI->mayBeEmittedAsTailCall(CI))
TailCalls.push_back(CI); TailCalls.push_back(CI);
} }
} }