diff options
Diffstat (limited to 'test/Transforms/InstCombine/apint-sub.ll')
| -rw-r--r-- | test/Transforms/InstCombine/apint-sub.ll | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/test/Transforms/InstCombine/apint-sub.ll b/test/Transforms/InstCombine/apint-sub.ll index 12f366de7f..2ff763c9f5 100644 --- a/test/Transforms/InstCombine/apint-sub.ll +++ b/test/Transforms/InstCombine/apint-sub.ll @@ -3,7 +3,7 @@ ; ; RUN: llvm-as < %s | opt -instcombine | llvm-dis | \ -; RUN: grep -v {sub i19 %Cok, %Bok} | not grep sub +; RUN: grep -v {sub i19 %Cok, %Bok} | grep -v {sub i25 0, %Aok} | not grep sub ; END. define i23 @test1(i23 %A) { @@ -107,8 +107,10 @@ define i51 @test16(i51 %A) { ret i51 %Y } -define i25 @test17(i25 %A) { - %B = sub i25 0, %A ; <i25> [#uses=1] +; Can't fold subtract here because negation it might oveflow. +; PR3142 +define i25 @test17(i25 %Aok) { + %B = sub i25 0, %Aok ; <i25> [#uses=1] %C = sdiv i25 %B, 1234 ; <i25> [#uses=1] ret i25 %C } |