1 ; Test CFG simplify removal of branch instructions.
3 ; RUN: opt < %s -simplifycfg -S | FileCheck %s
12 define void @test2() {
15 ; CHECK-LABEL: @test2(
16 ; CHECK-NEXT: ret void
20 define void @test3(i1 %T) {
21 br i1 %T, label %1, label %1
23 ; CHECK-LABEL: @test3(
24 ; CHECK-NEXT: ret void
29 define void @test5(i32 %A) {
30 switch i32 %A, label %return [
39 return: ; preds = %entry
41 ; CHECK-LABEL: @test5(
42 ; CHECK-NEXT: ret void
48 ; CHECK-LABEL: @test6f
49 ; CHECK: alloca i8, align 1
50 ; CHECK-NEXT: call i8 @test6g
51 ; CHECK-NEXT: icmp eq i8 %tmp, 0
52 ; CHECK-NEXT: load i8* %r, align 1{{$}}
55 %r = alloca i8, align 1
56 %tmp = call i8 @test6g(i8* %r)
57 %tmp1 = icmp eq i8 %tmp, 0
58 br i1 %tmp1, label %bb2, label %bb1
60 %tmp3 = load i8* %r, align 1, !range !2, !tbaa !1
61 %tmp4 = icmp eq i8 %tmp3, 1
62 br i1 %tmp4, label %bb2, label %bb3
66 %tmp6 = phi i8 [ 0, %bb2 ], [ 1, %bb1 ]
69 declare i8 @test6g(i8*)
71 !0 = metadata !{metadata !1, metadata !1, i64 0}
72 !1 = metadata !{metadata !"foo"}
73 !2 = metadata !{i8 0, i8 2}