diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/CodeGen/Analysis.cpp | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/CodeGen/Analysis.cpp b/lib/CodeGen/Analysis.cpp index 332a042..1600c67 100644 --- a/lib/CodeGen/Analysis.cpp +++ b/lib/CodeGen/Analysis.cpp @@ -510,6 +510,13 @@ bool llvm::isInTailCallPosition(ImmutableCallSite CS, return false; } + return returnTypeIsEligibleForTailCall(ExitBB->getParent(), I, Ret, TLI); +} + +bool llvm::returnTypeIsEligibleForTailCall(const Function *F, + const Instruction *I, + const ReturnInst *Ret, + const TargetLoweringBase &TLI) { // If the block ends with a void return or unreachable, it doesn't matter // what the call's return type is. if (!Ret || Ret->getNumOperands() == 0) return true; @@ -519,7 +526,7 @@ bool llvm::isInTailCallPosition(ImmutableCallSite CS, if (isa<UndefValue>(Ret->getOperand(0))) return true; // Make sure the attributes attached to each return are compatible. - AttrBuilder CallerAttrs(ExitBB->getParent()->getAttributes(), + AttrBuilder CallerAttrs(F->getAttributes(), AttributeSet::ReturnIndex); AttrBuilder CalleeAttrs(cast<CallInst>(I)->getAttributes(), AttributeSet::ReturnIndex); |