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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 | 35aeea993b091164f202266a4969d6f6df2adc7f (patch) | |
| tree | 77f404c05d1141a65ca6ad05191e6d5d6cb3fb96 /llvm/test/Transforms/InstSimplify/compare.ll | |
| parent | d2a507a6e693b878f50bb1b43500d59721adc5ed (diff) | |
| download | bcm5719-llvm-35aeea993b091164f202266a4969d6f6df2adc7f.tar.gz bcm5719-llvm-35aeea993b091164f202266a4969d6f6df2adc7f.zip | |
Fix logic error optimizing "icmp pred (urem X, Y), Y" where pred is signed.
Fixes PR16605.
llvm-svn: 186229
Diffstat (limited to 'llvm/test/Transforms/InstSimplify/compare.ll')
| -rw-r--r-- | llvm/test/Transforms/InstSimplify/compare.ll | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/llvm/test/Transforms/InstSimplify/compare.ll b/llvm/test/Transforms/InstSimplify/compare.ll index 82d56028c37..a0a9c8540ab 100644 --- a/llvm/test/Transforms/InstSimplify/compare.ll +++ b/llvm/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 |
