diff options
Diffstat (limited to 'test/Transforms/InstCombine/2004-03-13-InstCombineInfLoop.ll')
| -rw-r--r-- | test/Transforms/InstCombine/2004-03-13-InstCombineInfLoop.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/Transforms/InstCombine/2004-03-13-InstCombineInfLoop.ll b/test/Transforms/InstCombine/2004-03-13-InstCombineInfLoop.ll new file mode 100644 index 000000000000..2b5481b0195a --- /dev/null +++ b/test/Transforms/InstCombine/2004-03-13-InstCombineInfLoop.ll @@ -0,0 +1,13 @@ +; This testcase caused the combiner to go into an infinite loop, moving the +; cast back and forth, changing the seteq to operate on int vs uint and back. + +; RUN: llvm-as < %s | opt -instcombine -disable-output + +define i1 @test(i32 %A, i32 %B) { + %C = sub i32 0, %A ; <i32> [#uses=1] + %Cc = bitcast i32 %C to i32 ; <i32> [#uses=1] + %D = sub i32 0, %B ; <i32> [#uses=1] + %E = icmp eq i32 %Cc, %D ; <i1> [#uses=1] + ret i1 %E +} + |