; RUN: opt < %s -basic-aa -gvn -instcombine -S | FileCheck %s | |
; PR1600 | |
declare i16 @llvm.cttz.i16(i16, i1) | |
define i32 @test(i32* %P, i16* %Q) { | |
; CHECK: ret i32 0 | |
%A = load i16, i16* %Q ; <i16> [#uses=1] | |
%x = load i32, i32* %P ; <i32> [#uses=1] | |
%B = call i16 @llvm.cttz.i16( i16 %A, i1 true ) ; <i16> [#uses=1] | |
%y = load i32, i32* %P ; <i32> [#uses=1] | |
store i16 %B, i16* %Q | |
%z = sub i32 %x, %y ; <i32> [#uses=1] | |
ret i32 %z | |
} | |