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| author | Bill Wendling <isanbard@gmail.com> | 2011-10-17 18:43:40 +0000 |
|---|---|---|
| committer | Bill Wendling <isanbard@gmail.com> | 2011-10-17 18:43:40 +0000 |
| commit | 3c5e60994f53eef2808a33b5ca6c3dffc2168054 (patch) | |
| tree | f77554018088b20adc18a5aca234db259071c838 /lib/Transforms/Scalar/TailRecursionElimination.cpp | |
| parent | 8f3af87e99b9556224480f1aa18d340fb343bbf6 (diff) | |
| download | external_llvm-3c5e60994f53eef2808a33b5ca6c3dffc2168054.zip external_llvm-3c5e60994f53eef2808a33b5ca6c3dffc2168054.tar.gz external_llvm-3c5e60994f53eef2808a33b5ca6c3dffc2168054.tar.bz2 | |
Correct over-zealous removal of hack.
Some code want to check that *any* call within a function has the 'returns
twice' attribute, not just that the current function has one.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@142221 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/TailRecursionElimination.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/TailRecursionElimination.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Transforms/Scalar/TailRecursionElimination.cpp b/lib/Transforms/Scalar/TailRecursionElimination.cpp index 1022485..e21eb9d 100644 --- a/lib/Transforms/Scalar/TailRecursionElimination.cpp +++ b/lib/Transforms/Scalar/TailRecursionElimination.cpp @@ -213,7 +213,7 @@ bool TailCallElim::runOnFunction(Function &F) { // Finally, if this function contains no non-escaping allocas, or calls // setjmp, mark all calls in the function as eligible for tail calls //(there is no stack memory for them to access). - if (!FunctionContainsEscapingAllocas && !F.hasFnAttr(Attribute::ReturnsTwice)) + if (!FunctionContainsEscapingAllocas && !F.callsFunctionThatReturnsTwice()) for (Function::iterator BB = F.begin(), E = F.end(); BB != E; ++BB) for (BasicBlock::iterator I = BB->begin(), E = BB->end(); I != E; ++I) if (CallInst *CI = dyn_cast<CallInst>(I)) { |