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| author | Dan Gohman <gohman@apple.com> | 2010-01-05 16:27:25 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-01-05 16:27:25 +0000 |
| commit | 321a813c536e2f1f2f05bbe78a7fbf64046f0557 (patch) | |
| tree | 550286e12d0329b7e1ab4b88483a741672bd9515 /lib/Transforms/Scalar/GVN.cpp | |
| parent | b7a9f2b5042589db89e521a4f86fd2fd70845e0f (diff) | |
| download | llvm-321a813c536e2f1f2f05bbe78a7fbf64046f0557.tar.gz llvm-321a813c536e2f1f2f05bbe78a7fbf64046f0557.tar.bz2 llvm-321a813c536e2f1f2f05bbe78a7fbf64046f0557.tar.xz | |
Use do+while instead of while for loops which obviously have a
non-zero trip count. Use SmallVector's pop_back_val().
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@92734 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Scalar/GVN.cpp')
| -rw-r--r-- | lib/Transforms/Scalar/GVN.cpp | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp index 85b21e1fab..ac0d850360 100644 --- a/lib/Transforms/Scalar/GVN.cpp +++ b/lib/Transforms/Scalar/GVN.cpp @@ -829,7 +829,7 @@ SpeculationFailure: SmallVector<BasicBlock*, 32> BBWorklist; BBWorklist.push_back(BB); - while (!BBWorklist.empty()) { + do { BasicBlock *Entry = BBWorklist.pop_back_val(); // Note that this sets blocks to 0 (unavailable) if they happen to not // already be in FullyAvailableBlocks. This is safe. @@ -841,7 +841,7 @@ SpeculationFailure: for (succ_iterator I = succ_begin(Entry), E = succ_end(Entry); I != E; ++I) BBWorklist.push_back(*I); - } + } while (!BBWorklist.empty()); return false; } |