1 ; Check that we do not strength reduce to an overflowiong loop condition
2 ; RUN: llvm-as < %s | opt -loop-reduce | llvm-dis | not grep 4755160694556239428
4 target datalayout = "e-p:64:64"
5 target triple = "x86_64-unknown-linux-gnu"
6 @"initialized$$$CFE_id_3d9e38d5_main" = linkonce global [3 x i64] [i64 6729544817907097974, i64 754394135718280480, i64 0]
7 @"initialized$main$$CFE_id_3d9e38d5_main" = linkonce global [512 x i64] zeroinitializer
10 "file loop.c, line 10, bb14":
11 %vals = alloca [512 x i64], align 16
12 br label %"file loop.c, line 10, bb101"
14 "file loop.c, line 10, bb101":
15 br label %"file loop.c, line 10, in inner vector loop at depth 0, bb62"
17 "file loop.c, line 10, in inner vector loop at depth 0, bb62":
18 %"$SI_S13.0" = phi i64 [ 0, %"file loop.c, line 10, bb101" ], [ %r35, %"file loop.c, line 13, in inner vector loop at depth 0, bb63" ]
19 %"$LC_S14.0" = phi i64 [ -256, %"file loop.c, line 10, bb101" ], [ %r37, %"file loop.c, line 13, in inner vector loop at depth 0, bb63" ]
20 br label %"file loop.c, line 13, in inner vector loop at depth 0, bb63"
22 "file loop.c, line 13, in inner vector loop at depth 0, bb63":
23 %r3 = add i64 %"$SI_S13.0", ptrtoint ([512 x i64]* @"initialized$main$$CFE_id_3d9e38d5_main" to i64)
24 %vals18 = bitcast [512 x i64]* %vals to i8*
25 %ctg2 = getelementptr i8* %vals18, i64 %"$SI_S13.0"
26 %r9 = inttoptr i64 %r3 to <2 x i64>*
27 %r10 = load <2 x i64>* %r9, align 8
28 %r12 = bitcast i8* %ctg2 to <2 x i64>*
29 store <2 x i64> %r10, <2 x i64>* %r12, align 16
30 %tmp17 = inttoptr i64 %r3 to <2 x i64>*
31 %r15 = getelementptr <2 x i64>* %tmp17, i64 1
32 %r16 = load <2 x i64>* %r15, align 8
33 %ctg2.sum19 = or i64 %"$SI_S13.0", 16
34 %r19 = getelementptr i8* %vals18, i64 %ctg2.sum19
35 %0 = bitcast i8* %r19 to <2 x i64>*
36 store <2 x i64> %r16, <2 x i64>* %0, align 16
37 %tmp15 = inttoptr i64 %r3 to <2 x i64>*
38 %r22 = getelementptr <2 x i64>* %tmp15, i64 2
39 %r23 = load <2 x i64>* %r22, align 8
40 %ctg2.sum20 = or i64 %"$SI_S13.0", 32
41 %r26 = getelementptr i8* %vals18, i64 %ctg2.sum20
42 %1 = bitcast i8* %r26 to <2 x i64>*
43 store <2 x i64> %r23, <2 x i64>* %1, align 16
44 %tmp13 = inttoptr i64 %r3 to <2 x i64>*
45 %r29 = getelementptr <2 x i64>* %tmp13, i64 3
46 %r30 = load <2 x i64>* %r29, align 8
47 %ctg2.sum21 = or i64 %"$SI_S13.0", 48
48 %r33 = getelementptr i8* %vals18, i64 %ctg2.sum21
49 %2 = bitcast i8* %r33 to <2 x i64>*
50 store <2 x i64> %r30, <2 x i64>* %2, align 16
51 %r35 = add i64 %"$SI_S13.0", 64
52 %r37 = add i64 %"$LC_S14.0", 4
53 %r39 = icmp slt i64 %r37, 0
54 br i1 %r39, label %"file loop.c, line 10, in inner vector loop at depth 0, bb62", label %"file loop.c, line 15, bb51"
56 "file loop.c, line 15, bb51":
57 %3 = getelementptr [512 x i64]* %vals, i64 0, i64 0
58 store i64 0, i64* %3, align 16
59 br label %"file loop.c, line 10, in inner loop at depth 0, bb65"
61 "file loop.c, line 10, in inner loop at depth 0, bb65":
62 %"$vals_WR0_S15.0" = phi i64 [ 0, %"file loop.c, line 15, bb51" ], [ %r70, %"file loop.c, line 16, in inner loop at depth 0, bb67" ]
63 %"$i_S16.0" = phi i64 [ 0, %"file loop.c, line 15, bb51" ], [ %r78, %"file loop.c, line 16, in inner loop at depth 0, bb67" ]
64 br label %"file loop.c, line 16, in inner loop at depth 0, bb67"
66 "file loop.c, line 16, in inner loop at depth 0, bb67":
67 %r45 = add i64 %"$vals_WR0_S15.0", 81985529216486895
68 %r5111 = or i64 %"$i_S16.0", 1
69 %r5212 = getelementptr [512 x i64]* %vals, i64 0, i64 %r5111
70 store i64 %r45, i64* %r5212, align 8
71 %r54 = add i64 %"$vals_WR0_S15.0", 163971058432973790
72 %r599 = or i64 %"$i_S16.0", 2
73 %r6010 = getelementptr [512 x i64]* %vals, i64 0, i64 %r599
74 store i64 %r54, i64* %r6010, align 16
75 %r62 = add i64 %"$vals_WR0_S15.0", 245956587649460685
76 %r677 = or i64 %"$i_S16.0", 3
77 %r688 = getelementptr [512 x i64]* %vals, i64 0, i64 %r677
78 store i64 %r62, i64* %r688, align 8
79 %r70 = add i64 %"$vals_WR0_S15.0", 327942116865947580
80 %r75 = add i64 %"$i_S16.0", 4
81 %r766 = getelementptr [512 x i64]* %vals, i64 0, i64 %r75
82 store i64 %r70, i64* %r766, align 16
83 %r78 = add i64 %"$i_S16.0", 4
84 %r80 = icmp slt i64 %r78, 508
85 br i1 %r80, label %"file loop.c, line 10, in inner loop at depth 0, bb65", label %"file loop.c, line 16, bb39"
87 "file loop.c, line 16, bb39":
88 %r84 = add i64 %"$vals_WR0_S15.0", 409927646082434475
89 %r885 = getelementptr [512 x i64]* %vals, i64 0, i64 509
90 store i64 %r84, i64* %r885, align 8
91 %r90 = add i64 %"$vals_WR0_S15.0", 491913175298921370
92 %r944 = getelementptr [512 x i64]* %vals, i64 0, i64 510
93 store i64 %r90, i64* %r944, align 16
94 %r1003 = getelementptr [512 x i64]* %vals, i64 0, i64 511
95 %r96.c = add i64 %"$vals_WR0_S15.0", 573898704515408265
96 store i64 %r96.c, i64* %r1003, align 8
97 br label %"file loop.c, line 10, in inner loop at depth 0, bb13"
99 "file loop.c, line 10, in inner loop at depth 0, bb13":
100 %"$i_S17.0" = phi i64 [ 0, %"file loop.c, line 16, bb39" ], [ %r111, %"file loop.c, line 19, in inner loop at depth 0, bb25" ]
101 br label %"file loop.c, line 19, in inner loop at depth 0, bb6"
103 "file loop.c, line 19, in inner loop at depth 0, bb6":
104 %r102 = add i64 %"$i_S17.0", 1
105 %r106 = add i64 %"$i_S17.0", 1
106 %r1071 = getelementptr [512 x i64]* %vals, i64 0, i64 %r106
107 %r1072 = load i64* %r1071, align 8
108 %r109 = call i32 (...)* @printf([17 x i8]* bitcast ([3 x i64]* @"initialized$$$CFE_id_3d9e38d5_main" to [17 x i8]*), i64 %r102, i64 %r1072)
109 br label %"file loop.c, line 19, in inner loop at depth 0, bb25"
111 "file loop.c, line 19, in inner loop at depth 0, bb25":
112 %r111 = add i64 %"$i_S17.0", 1
113 %r113 = icmp slt i64 %r111, 511
114 br i1 %r113, label %"file loop.c, line 10, in inner loop at depth 0, bb13", label %"file loop.c, line 19, bb10"
116 "file loop.c, line 19, bb10":
120 declare i8* @llvm.returnaddress(i32) nounwind readnone
122 declare i32 @printf(...)