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| author | Dan Gohman <gohman@apple.com> | 2008-09-16 01:42:28 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-09-16 01:42:28 +0000 |
| commit | 5ea89a04a96691210f0ad8e56ad6a91bae8e5f82 (patch) | |
| tree | 805ac0b0e0259fbd40e34c9a51c8c76468310df9 /lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | |
| parent | 78a38db4ab6b5212a2392c4980eb7ca8c14ec45e (diff) | |
| download | external_llvm-5ea89a04a96691210f0ad8e56ad6a91bae8e5f82.zip external_llvm-5ea89a04a96691210f0ad8e56ad6a91bae8e5f82.tar.gz external_llvm-5ea89a04a96691210f0ad8e56ad6a91bae8e5f82.tar.bz2 | |
Don't take the time to CheckDAGForTailCallsAndFixThem when tail calls
are not enabled. Instead just omit the tail call flag when calls are
created.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@56235 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp index fa17510..140bad2 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp @@ -526,7 +526,8 @@ void SelectionDAGISel::SelectBasicBlock(BasicBlock *LLVMBB, // with correct tailcall attribute so that the target can rely on the tailcall // attribute indicating whether the call is really eligible for tail call // optimization. - CheckDAGForTailCallsAndFixThem(*CurDAG, TLI); + if (PerformTailCallOpt) + CheckDAGForTailCallsAndFixThem(*CurDAG, TLI); // Final step, emit the lowered DAG as machine code. CodeGenAndEmitDAG(); |