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| author | Nick Lewycky <nicholas@mxc.ca> | 2013-07-12 23:42:57 +0000 |
|---|---|---|
| committer | Nick Lewycky <nicholas@mxc.ca> | 2013-07-12 23:42:57 +0000 |
| commit | 8a23270ce60fdd5dafa1c8dfbf9f46c8efe244b7 (patch) | |
| tree | f0c7d5e97d2647ecb530397bf29b4add5350cc37 /test | |
| parent | 434c0bd2a5c3c7ebaa8ca10dd7e4fdb1f25e92a0 (diff) | |
| download | llvm-8a23270ce60fdd5dafa1c8dfbf9f46c8efe244b7.tar.gz llvm-8a23270ce60fdd5dafa1c8dfbf9f46c8efe244b7.tar.bz2 llvm-8a23270ce60fdd5dafa1c8dfbf9f46c8efe244b7.tar.xz | |
Fix logic error optimizing "icmp pred (urem X, Y), Y" where pred is signed.
Fixes PR16605.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186229 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test')
| -rw-r--r-- | test/Transforms/InstSimplify/compare.ll | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/test/Transforms/InstSimplify/compare.ll b/test/Transforms/InstSimplify/compare.ll index 82d56028c3..a0a9c8540a 100644 --- a/test/Transforms/InstSimplify/compare.ll +++ b/test/Transforms/InstSimplify/compare.ll @@ -480,7 +480,7 @@ define i1 @urem5(i16 %X, i32 %Y) { %B = urem i32 %A, %Y %C = icmp slt i32 %B, %Y ret i1 %C -; CHECK: ret i1 true +; CHECK-NOT: ret i1 true } define i1 @urem6(i32 %X, i32 %Y) { @@ -491,6 +491,14 @@ define i1 @urem6(i32 %X, i32 %Y) { ; CHECK: ret i1 true } +define i1 @urem7(i32 %X) { +; CHECK: @urem7 + %A = urem i32 1, %X + %B = icmp sgt i32 %A, %X + ret i1 %B +; CHECK-NOT: ret i1 false +} + define i1 @srem1(i32 %X) { ; CHECK: @srem1 %A = srem i32 %X, -5 |