diff options
Diffstat (limited to 'lib/CodeGen')
-rw-r--r-- | lib/CodeGen/StackProtector.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/lib/CodeGen/StackProtector.cpp b/lib/CodeGen/StackProtector.cpp index b45459a4f6..2cd2219ac9 100644 --- a/lib/CodeGen/StackProtector.cpp +++ b/lib/CodeGen/StackProtector.cpp @@ -280,7 +280,12 @@ static bool InstructionWillNotHaveChain(const Instruction *I) { /// Identify if RI has a previous instruction in the "Tail Position" and return /// it. Otherwise return 0. /// -/// This is based off of the code in llvm::isInTailCallPosition +/// This is based off of the code in llvm::isInTailCallPosition. The difference +/// is that it inverts the first part of llvm::isInTailCallPosition since +/// isInTailCallPosition is checking if a call is in a tail call position, and +/// we are searching for an unknown tail call that might be in the tail call +/// position. Once we find the call though, the code uses the same refactored +/// code, returnTypeIsEligibleForTailCall. static CallInst *FindPotentialTailCall(BasicBlock *BB, ReturnInst *RI, const TargetLoweringBase *TLI) { // Establish a reasonable upper bound on the maximum amount of instructions we |