1; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2; RUN: opt -S -indvars %s | FileCheck %s
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128-ni:1"
4target triple = "x86_64-unknown-linux-gnu"
5
6define i32 @testDiv(i8* %p, i64* %p1) {
7; CHECK-LABEL: @testDiv(
8; CHECK-NEXT:  entry:
9; CHECK-NEXT:    br label [[LOOP1:%.*]]
10; CHECK:       loop1:
11; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[INDVARS_IV_NEXT:%.*]], [[LOOP2_EXIT:%.*]] ], [ 8, [[ENTRY:%.*]] ]
12; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV]], 15
13; CHECK-NEXT:    br i1 [[EXITCOND]], label [[EXIT:%.*]], label [[GENERAL_CASE24:%.*]]
14; CHECK:       general_case24:
15; CHECK-NEXT:    br i1 false, label [[LOOP2_PREHEADER:%.*]], label [[LOOP2_EXIT]]
16; CHECK:       loop2.preheader:
17; CHECK-NEXT:    [[TMP0:%.*]] = udiv i64 14, [[INDVARS_IV]]
18; CHECK-NEXT:    [[TMP1:%.*]] = udiv i64 60392, [[TMP0]]
19; CHECK-NEXT:    br label [[LOOP2:%.*]]
20; CHECK:       loop2:
21; CHECK-NEXT:    [[INDVARS_IV1:%.*]] = phi i64 [ [[TMP1]], [[LOOP2_PREHEADER]] ], [ [[INDVARS_IV_NEXT2:%.*]], [[LOOP2]] ]
22; CHECK-NEXT:    [[INDVARS_IV_NEXT2]] = add nuw nsw i64 [[INDVARS_IV1]], -1
23; CHECK-NEXT:    [[I4:%.*]] = load atomic i64, i64* [[P1:%.*]] unordered, align 8
24; CHECK-NEXT:    [[I6:%.*]] = sub i64 [[I4]], [[INDVARS_IV_NEXT2]]
25; CHECK-NEXT:    store atomic i64 [[I6]], i64* [[P1]] unordered, align 8
26; CHECK-NEXT:    br i1 true, label [[LOOP2_EXIT_LOOPEXIT:%.*]], label [[LOOP2]]
27; CHECK:       loop2.exit.loopexit:
28; CHECK-NEXT:    br label [[LOOP2_EXIT]]
29; CHECK:       loop2.exit:
30; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1
31; CHECK-NEXT:    br i1 false, label [[EXIT]], label [[LOOP1]]
32; CHECK:       exit:
33; CHECK-NEXT:    ret i32 0
34;
35entry:
36  br label %loop1
37
38loop1:                                            ; preds = %loop2.exit, %entry
39  %local_0_ = phi i32 [ 8, %entry ], [ %i9, %loop2.exit ]
40  %local_2_ = phi i32 [ 63864, %entry ], [ %local_2_43, %loop2.exit ]
41  %local_3_ = phi i32 [ 51, %entry ], [ %local_3_44, %loop2.exit ]
42  %i = udiv i32 14, %local_0_
43  %i1 = icmp ugt i32 %local_0_, 14
44  br i1 %i1, label %exit, label %general_case24
45
46general_case24:                                   ; preds = %loop1
47  %i2 = udiv i32 60392, %i
48  br i1 false, label %loop2, label %loop2.exit
49
50loop2:                                            ; preds = %loop2, %general_case24
51  %local_1_56 = phi i32 [ %i2, %general_case24 ], [ %i3, %loop2 ]
52  %local_2_57 = phi i32 [ 1, %general_case24 ], [ %i7, %loop2 ]
53  %i3 = add i32 %local_1_56, -1
54  %i4 = load atomic i64, i64* %p1 unordered, align 8
55  %i5 = sext i32 %i3 to i64
56  %i6 = sub i64 %i4, %i5
57  store atomic i64 %i6, i64* %p1 unordered, align 8
58  %i7 = add nuw nsw i32 %local_2_57, 1
59  %i8 = icmp ugt i32 %local_2_57, 7
60  br i1 %i8, label %loop2.exit, label %loop2
61
62loop2.exit:                                       ; preds = %loop2, %general_case24
63  %local_2_43 = phi i32 [ %local_2_, %general_case24 ], [ 9, %loop2 ]
64  %local_3_44 = phi i32 [ %local_3_, %general_case24 ], [ %local_1_56, %loop2 ]
65  %i9 = add nuw nsw i32 %local_0_, 1
66  %i10 = icmp ugt i32 %local_0_, 129
67  br i1 %i10, label %exit, label %loop1
68
69exit:                                             ; preds = %loop2.exit, %loop1
70  ret i32 0
71}
72
73define i32 @testRem(i8* %p, i64* %p1) {
74; CHECK-LABEL: @testRem(
75; CHECK-NEXT:  entry:
76; CHECK-NEXT:    br label [[LOOP1:%.*]]
77; CHECK:       loop1:
78; CHECK-NEXT:    [[LOCAL_0_:%.*]] = phi i32 [ 8, [[ENTRY:%.*]] ], [ [[I9:%.*]], [[LOOP2_EXIT:%.*]] ]
79; CHECK-NEXT:    [[EXITCOND:%.*]] = icmp eq i32 [[LOCAL_0_]], 15
80; CHECK-NEXT:    br i1 [[EXITCOND]], label [[EXIT:%.*]], label [[GENERAL_CASE24:%.*]]
81; CHECK:       general_case24:
82; CHECK-NEXT:    br i1 false, label [[LOOP2_PREHEADER:%.*]], label [[LOOP2_EXIT]]
83; CHECK:       loop2.preheader:
84; CHECK-NEXT:    [[TMP0:%.*]] = udiv i32 14, [[LOCAL_0_]]
85; CHECK-NEXT:    [[TMP1:%.*]] = udiv i32 60392, [[TMP0]]
86; CHECK-NEXT:    [[TMP2:%.*]] = mul i32 [[TMP1]], -1
87; CHECK-NEXT:    [[TMP3:%.*]] = mul i32 [[TMP2]], [[TMP0]]
88; CHECK-NEXT:    [[TMP4:%.*]] = sext i32 [[TMP3]] to i64
89; CHECK-NEXT:    [[TMP5:%.*]] = add nsw i64 [[TMP4]], 60392
90; CHECK-NEXT:    br label [[LOOP2:%.*]]
91; CHECK:       loop2:
92; CHECK-NEXT:    [[INDVARS_IV:%.*]] = phi i64 [ [[TMP5]], [[LOOP2_PREHEADER]] ], [ [[INDVARS_IV_NEXT:%.*]], [[LOOP2]] ]
93; CHECK-NEXT:    [[INDVARS_IV_NEXT]] = add nsw i64 [[INDVARS_IV]], -1
94; CHECK-NEXT:    [[I4:%.*]] = load atomic i64, i64* [[P1:%.*]] unordered, align 8
95; CHECK-NEXT:    [[I6:%.*]] = sub i64 [[I4]], [[INDVARS_IV_NEXT]]
96; CHECK-NEXT:    store atomic i64 [[I6]], i64* [[P1]] unordered, align 8
97; CHECK-NEXT:    br i1 true, label [[LOOP2_EXIT_LOOPEXIT:%.*]], label [[LOOP2]]
98; CHECK:       loop2.exit.loopexit:
99; CHECK-NEXT:    br label [[LOOP2_EXIT]]
100; CHECK:       loop2.exit:
101; CHECK-NEXT:    [[I9]] = add nuw nsw i32 [[LOCAL_0_]], 1
102; CHECK-NEXT:    br i1 false, label [[EXIT]], label [[LOOP1]]
103; CHECK:       exit:
104; CHECK-NEXT:    ret i32 0
105;
106entry:
107  br label %loop1
108
109loop1:                                            ; preds = %loop2.exit, %entry
110  %local_0_ = phi i32 [ 8, %entry ], [ %i9, %loop2.exit ]
111  %local_2_ = phi i32 [ 63864, %entry ], [ %local_2_43, %loop2.exit ]
112  %local_3_ = phi i32 [ 51, %entry ], [ %local_3_44, %loop2.exit ]
113  %i = udiv i32 14, %local_0_
114  %i1 = icmp ugt i32 %local_0_, 14
115  br i1 %i1, label %exit, label %general_case24
116
117general_case24:                                   ; preds = %loop1
118  %i2 = urem i32 60392, %i
119  br i1 false, label %loop2, label %loop2.exit
120
121loop2:                                            ; preds = %loop2, %general_case24
122  %local_1_56 = phi i32 [ %i2, %general_case24 ], [ %i3, %loop2 ]
123  %local_2_57 = phi i32 [ 1, %general_case24 ], [ %i7, %loop2 ]
124  %i3 = add i32 %local_1_56, -1
125  %i4 = load atomic i64, i64* %p1 unordered, align 8
126  %i5 = sext i32 %i3 to i64
127  %i6 = sub i64 %i4, %i5
128  store atomic i64 %i6, i64* %p1 unordered, align 8
129  %i7 = add nuw nsw i32 %local_2_57, 1
130  %i8 = icmp ugt i32 %local_2_57, 7
131  br i1 %i8, label %loop2.exit, label %loop2
132
133loop2.exit:                                       ; preds = %loop2, %general_case24
134  %local_2_43 = phi i32 [ %local_2_, %general_case24 ], [ 9, %loop2 ]
135  %local_3_44 = phi i32 [ %local_3_, %general_case24 ], [ %local_1_56, %loop2 ]
136  %i9 = add nuw nsw i32 %local_0_, 1
137  %i10 = icmp ugt i32 %local_0_, 129
138  br i1 %i10, label %exit, label %loop1
139
140exit:                                             ; preds = %loop2.exit, %loop1
141  ret i32 0
142}
143