1; This testcase caused the combiner to go into an infinite loop, moving the 2; cast back and forth, changing the seteq to operate on int vs uint and back. 3 4; RUN: opt < %s -instcombine -disable-output 5 6define i1 @test(i32 %A, i32 %B) { 7 %C = sub i32 0, %A ; <i32> [#uses=1] 8 %Cc = bitcast i32 %C to i32 ; <i32> [#uses=1] 9 %D = sub i32 0, %B ; <i32> [#uses=1] 10 %E = icmp eq i32 %Cc, %D ; <i1> [#uses=1] 11 ret i1 %E 12} 13 14