1 ; RUN: opt < %s -instcombine -S | FileCheck %s 2 ; PR12234 3 4 @g = extern_weak global i32 5 define i32 @function(i32 %x) nounwind { 6 entry: 7 %xor = xor i32 %x, 1 8 store volatile i32 %xor, i32* inttoptr (i64 1 to i32*), align 4 9 %or4 = or i32 or (i32 zext (i1 icmp eq (i32* @g, i32* null) to i32), i32 1), %xor 10 ret i32 %or4 11 } 12 ; CHECK-LABEL: define i32 @function( 13
