xref: /llvm-project/llvm/test/Transforms/NewGVN/2007-07-26-InterlockingLoops.ll (revision d10b76552f919ddb84347ab03908a55804ea6b8a)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2; RUN: opt < %s -passes=newgvn -S | FileCheck %s
3
4@last = external global [65 x ptr]
5
6define i32 @NextRootMove(i32 %wtm, i32 %x, i32 %y, i32 %z) {
7; CHECK-LABEL: define i32 @NextRootMove
8; CHECK-SAME: (i32 [[WTM:%.*]], i32 [[X:%.*]], i32 [[Y:%.*]], i32 [[Z:%.*]]) {
9; CHECK-NEXT:  entry:
10; CHECK-NEXT:    [[A:%.*]] = alloca ptr, align 8
11; CHECK-NEXT:    [[TMP17618:%.*]] = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
12; CHECK-NEXT:    store ptr [[TMP17618]], ptr [[A]], align 8
13; CHECK-NEXT:    br label [[COND_TRUE116:%.*]]
14; CHECK:       cond_true116:
15; CHECK-NEXT:    [[CMP:%.*]] = icmp eq i32 [[X]], [[Y]]
16; CHECK-NEXT:    br i1 [[CMP]], label [[COND_TRUE128:%.*]], label [[COND_TRUE145:%.*]]
17; CHECK:       cond_true128:
18; CHECK-NEXT:    [[CMP1:%.*]] = icmp eq i32 [[X]], [[Z]]
19; CHECK-NEXT:    br i1 [[CMP1]], label [[BB98_BACKEDGE:%.*]], label [[RETURN_LOOPEXIT:%.*]]
20; CHECK:       bb98.backedge:
21; CHECK-NEXT:    br label [[COND_TRUE116]]
22; CHECK:       cond_true145:
23; CHECK-NEXT:    br i1 false, label [[BB98_BACKEDGE]], label [[RETURN_LOOPEXIT]]
24; CHECK:       return.loopexit:
25; CHECK-NEXT:    br label [[RETURN:%.*]]
26; CHECK:       return:
27; CHECK-NEXT:    ret i32 0
28;
29entry:
30  %A = alloca ptr
31  %tmp17618 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
32  store ptr %tmp17618, ptr %A
33  br label %cond_true116
34
35cond_true116:
36  %cmp = icmp eq i32 %x, %y
37  br i1 %cmp, label %cond_true128, label %cond_true145
38
39cond_true128:
40  %tmp17625 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
41  store ptr %tmp17625, ptr %A
42  %cmp1 = icmp eq i32 %x, %z
43  br i1 %cmp1 , label %bb98.backedge, label %return.loopexit
44
45bb98.backedge:
46  br label %cond_true116
47
48cond_true145:
49  %tmp17631 = load ptr, ptr getelementptr ([65 x ptr], ptr @last, i32 0, i32 1), align 4
50  store ptr %tmp17631, ptr %A
51  br i1 false, label %bb98.backedge, label %return.loopexit
52
53return.loopexit:
54  br label %return
55
56return:
57  ret i32 0
58}
59