blob: e59d19cc2e268645e11d79235361bcec33c0347b [file] [log] [blame]
; RUN: opt -instsimplify -S < %s | FileCheck %s
; CHECK-LABEL: @test
define i1 @test(i8 %p, i8* %pq) {
%q = load i8, i8* %pq, !range !0 ; %q is known nonzero; no known bits
%1 = shl i8 %p, %q ; because %q is nonzero, %1[0] is known to be zero.
%2 = and i8 %1, 1
%x = icmp eq i8 %2, 0
; CHECK: ret i1 true
ret i1 %x
}
!0 = !{ i8 1, i8 5 }