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| author | Chris Lattner <sabre@nondot.org> | 2008-10-11 22:55:00 +0000 |
|---|---|---|
| committer | Chris Lattner <sabre@nondot.org> | 2008-10-11 22:55:00 +0000 |
| commit | a6321b40c22025b09c1bbff9df7f4b0470835b0b (patch) | |
| tree | 23bd4ecb03c450667ab12192e6b753500d38e5e1 /test/Transforms/InstCombine/2008-10-11-DivCompareFold.ll | |
| parent | 1b8f4bb4a1a46e8a2295bdaf0454a5c302863703 (diff) | |
| download | llvm-a6321b40c22025b09c1bbff9df7f4b0470835b0b.tar.gz llvm-a6321b40c22025b09c1bbff9df7f4b0470835b0b.tar.bz2 llvm-a6321b40c22025b09c1bbff9df7f4b0470835b0b.tar.xz | |
Fix PR2697 by rewriting the '(X / pos) op neg' logic. This also changes
a couple other cases for clarity, but shouldn't affect correctness.
Patch by Eli Friedman!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@57387 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/Transforms/InstCombine/2008-10-11-DivCompareFold.ll')
| -rw-r--r-- | test/Transforms/InstCombine/2008-10-11-DivCompareFold.ll | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2008-10-11-DivCompareFold.ll b/test/Transforms/InstCombine/2008-10-11-DivCompareFold.ll new file mode 100644 index 0000000000..dfe9c4a16c --- /dev/null +++ b/test/Transforms/InstCombine/2008-10-11-DivCompareFold.ll @@ -0,0 +1,8 @@ +; RUN: llvm-as < %s | opt -instcombine | llvm-dis | grep {ret i1 false} +; PR2697 + +define i1 @x(i32 %x) nounwind { + %div = sdiv i32 %x, 65536 ; <i32> [#uses=1] + %cmp = icmp slt i32 %div, -65536 + ret i1 %cmp +} |