1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
2 ; RUN: opt -S < %s -passes=newgvn | FileCheck %s
4 @a = external global i64
6 define void @fn1(i1 %bc) {
7 ; CHECK-LABEL: define void @fn1(
8 ; CHECK-SAME: i1 [[BC:%.*]]) {
10 ; CHECK-NEXT: br label [[FOR_COND:%.*]]
12 ; CHECK-NEXT: [[LV:%.*]] = load i32, ptr @a, align 4
13 ; CHECK-NEXT: [[BF_CLEAR:%.*]] = and i32 [[LV]], -131072
14 ; CHECK-NEXT: [[BF_SET:%.*]] = or i32 1, [[BF_CLEAR]]
15 ; CHECK-NEXT: [[BF_CLEAR_1:%.*]] = and i32 [[BF_SET]], -131072
16 ; CHECK-NEXT: [[BF_SET_1:%.*]] = or i32 1, [[BF_CLEAR_1]]
17 ; CHECK-NEXT: br i1 [[BC]], label [[FOR_COND]], label [[EXIT:%.*]]
19 ; CHECK-NEXT: store i32 [[BF_SET_1]], ptr @a, align 4
20 ; CHECK-NEXT: ret void
25 for.cond: ; preds = %for.cond1.1, %entry
26 %tmp = phi i1 [ undef, %entry ], [ 1, %for.cond ]
27 %conv = zext i1 %tmp to i32
28 %lv = load i32, ptr @a
29 %bf.clear = and i32 %lv, -131072
30 %bf.set = or i32 %conv, %bf.clear
31 %bf.clear.1 = and i32 %bf.set, -131072
32 %bf.set.1 = or i32 1, %bf.clear.1
33 br i1 %bc, label %for.cond, label %exit
35 exit: ; preds = %for.cond1
36 store i32 %bf.set.1, ptr @a