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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 4
; RUN: opt -S < %s -passes=newgvn | FileCheck %s
@a = external global i64
define void @fn1(i1 %bc) {
; CHECK-LABEL: define void @fn1(
; CHECK-SAME: i1 [[BC:%.*]]) {
; CHECK-NEXT: entry:
; CHECK-NEXT: br label [[FOR_COND:%.*]]
; CHECK: for.cond:
; CHECK-NEXT: [[LV:%.*]] = load i32, ptr @a, align 4
; CHECK-NEXT: [[BF_CLEAR:%.*]] = and i32 [[LV]], -131072
; CHECK-NEXT: [[BF_SET:%.*]] = or i32 1, [[BF_CLEAR]]
; CHECK-NEXT: br i1 [[BC]], label [[FOR_COND]], label [[EXIT:%.*]]
; CHECK: exit:
; CHECK-NEXT: store i32 [[BF_SET]], ptr @a, align 4
; CHECK-NEXT: ret void
;
entry:
br label %for.cond
for.cond: ; preds = %for.cond1.1, %entry
%tmp = phi i1 [ undef, %entry ], [ 1, %for.cond ]
%conv = zext i1 %tmp to i32
%lv = load i32, ptr @a
%bf.clear = and i32 %lv, -131072
%bf.set = or i32 %conv, %bf.clear
%bf.clear.1 = and i32 %bf.set, -131072
%bf.set.1 = or i32 1, %bf.clear.1
br i1 %bc, label %for.cond, label %exit
exit: ; preds = %for.cond1
store i32 %bf.set.1, ptr @a
ret void
}
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