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| author | Michael Zolotukhin <mzolotukhin@apple.com> | 2015-09-23 23:12:43 +0000 |
|---|---|---|
| committer | Michael Zolotukhin <mzolotukhin@apple.com> | 2015-09-23 23:12:43 +0000 |
| commit | d56ee06d1f5310e169ac29afa4f35b3c6f1fdd87 (patch) | |
| tree | b22b13b78381783b79504407fd9458a631f58e46 /llvm/lib/Transforms/Utils/LoopUnroll.cpp | |
| parent | 01ebf004ffdd45360b6de11ac1c9c5bc0a077dfb (diff) | |
| download | bcm5719-llvm-d56ee06d1f5310e169ac29afa4f35b3c6f1fdd87.tar.gz bcm5719-llvm-d56ee06d1f5310e169ac29afa4f35b3c6f1fdd87.zip | |
[Unroll] When completely unrolling the loop, replace conditinal branches with unconditional.
Nothing is expected to change, except we do less redundant work in
clean-up.
Reviewers: hfinkel
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D12951
llvm-svn: 248444
Diffstat (limited to 'llvm/lib/Transforms/Utils/LoopUnroll.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/LoopUnroll.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/llvm/lib/Transforms/Utils/LoopUnroll.cpp b/llvm/lib/Transforms/Utils/LoopUnroll.cpp index 971f01b72a1..95d31d86644 100644 --- a/llvm/lib/Transforms/Utils/LoopUnroll.cpp +++ b/llvm/lib/Transforms/Utils/LoopUnroll.cpp @@ -434,8 +434,9 @@ bool llvm::UnrollLoop(Loop *L, unsigned Count, unsigned TripCount, // For a complete unroll, make the last iteration end with a branch // to the exit block. - if (CompletelyUnroll && j == 0) { - Dest = LoopExit; + if (CompletelyUnroll) { + if (j == 0) + Dest = LoopExit; NeedConditional = false; } |
