xref: /llvm-project/llvm/test/Transforms/LICM/2011-04-06-PromoteResultOfPromotion.ll (revision e775c926dfdc9f7f578cbe6c4e0465d228f77a38)
1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2
2; RUN: opt < %s -passes=licm -S | FileCheck %s
3; PR9634
4
5@g_58 = common global i32 0, align 4
6@g_116 = common global ptr null, align 8
7
8define void @f() {
9; CHECK-LABEL: define void @f() {
10; CHECK-NEXT:  entry:
11; CHECK-NEXT:    [[L_87_I:%.*]] = alloca [9 x i16], align 16
12; CHECK-NEXT:    [[G_58_PROMOTED:%.*]] = load i32, ptr @g_58, align 4, !tbaa [[TBAA0:![0-9]+]]
13; CHECK-NEXT:    br label [[FOR_BODY:%.*]]
14; CHECK:       for.body:
15; CHECK-NEXT:    [[TMP31:%.*]] = phi i32 [ [[G_58_PROMOTED]], [[ENTRY:%.*]] ], [ [[OR:%.*]], [[FOR_BODY]] ]
16; CHECK-NEXT:    [[INC12:%.*]] = phi i32 [ 0, [[ENTRY]] ], [ [[INC:%.*]], [[FOR_BODY]] ]
17; CHECK-NEXT:    [[OR]] = or i32 [[TMP31]], 10
18; CHECK-NEXT:    [[INC]] = add nsw i32 [[INC12]], 1
19; CHECK-NEXT:    [[CMP:%.*]] = icmp slt i32 [[INC]], 4
20; CHECK-NEXT:    br i1 [[CMP]], label [[FOR_BODY]], label [[FOR_END:%.*]]
21; CHECK:       for.end:
22; CHECK-NEXT:    [[OR_LCSSA:%.*]] = phi i32 [ [[OR]], [[FOR_BODY]] ]
23; CHECK-NEXT:    store ptr @g_58, ptr @g_116, align 8, !tbaa [[TBAA4:![0-9]+]]
24; CHECK-NEXT:    store i32 [[OR_LCSSA]], ptr @g_58, align 4, !tbaa [[TBAA0]]
25; CHECK-NEXT:    ret void
26;
27
28entry:
29  %l_87.i = alloca [9 x i16], align 16
30  br label %for.body
31
32for.body:                                         ; preds = %entry, %for.inc
33  %inc12 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
34  store ptr @g_58, ptr @g_116, align 8, !tbaa !0
35  %tmp2 = load ptr, ptr @g_116, align 8, !tbaa !0
36  %tmp3 = load i32, ptr %tmp2, !tbaa !4
37  %or = or i32 %tmp3, 10
38  store i32 %or, ptr %tmp2, !tbaa !4
39  %inc = add nsw i32 %inc12, 1
40  %cmp = icmp slt i32 %inc, 4
41  br i1 %cmp, label %for.body, label %for.end
42
43for.end:                                          ; preds = %for.inc
44  ret void
45}
46
47!0 = !{!5, !5, i64 0}
48!1 = !{!"omnipotent char", !2}
49!2 = !{!"Simple C/C++ TBAA"}
50!3 = !{!"short", !1}
51!4 = !{!6, !6, i64 0}
52!5 = !{!"any pointer", !1}
53!6 = !{!"int", !1}
54