1 ; RUN: opt -S < %s -newgvn | FileCheck %s
3 ; CHECK-LABEL: for.cond:
4 ; CHECK-NEXT: %lv = load i32, i32* bitcast (i64* @a to i32*)
5 ; CHECK-NEXT: %bf.clear = and i32 %lv, -131072
6 ; CHECK-NEXT: %bf.set = or i32 1, %bf.clear
7 ; CHECK-NEXT: br i1 %bc, label %for.cond, label %exit
8 @a = external global i64
10 define void @fn1(i1 %bc) {
14 for.cond: ; preds = %for.cond1.1, %entry
15 %tmp = phi i1 [ undef, %entry ], [ 1, %for.cond ]
16 %conv = zext i1 %tmp to i32
17 %lv = load i32, i32* bitcast (i64* @a to i32*)
18 %bf.clear = and i32 %lv, -131072
19 %bf.set = or i32 %conv, %bf.clear
20 %bf.clear.1 = and i32 %bf.set, -131072
21 %bf.set.1 = or i32 1, %bf.clear.1
22 br i1 %bc, label %for.cond, label %exit
24 exit: ; preds = %for.cond1
25 store i32 %bf.set.1, i32* bitcast (i64* @a to i32*)