1 ; NOTE: Assertions have been autogenerated by utils/update_analyze_test_checks.py
2 ; RUN: opt -S -disable-output "-passes=print<scalar-evolution>" < %s 2>&1 | FileCheck %s
4 ; TODO: Make sure that zext(umin(x, y)) has same SCEV as umin(zext(x), zext(y)).
5 ; Equality proof: https://alive2.llvm.org/ce/z/vdsvmp
6 define i1 @test_umin(i32 %x, i32 %y) {
7 ; CHECK-LABEL: 'test_umin'
8 ; CHECK-NEXT: Classifying expressions for: @test_umin
9 ; CHECK-NEXT: %umin_x_y = select i1 %cmp_x_y, i32 %x, i32 %y
10 ; CHECK-NEXT: --> (%x umin %y) U: full-set S: full-set
11 ; CHECK-NEXT: %zext_umin_x_y = zext i32 %umin_x_y to i64
12 ; CHECK-NEXT: --> ((zext i32 %x to i64) umin (zext i32 %y to i64)) U: [0,4294967296) S: [0,4294967296)
13 ; CHECK-NEXT: %zext_x = zext i32 %x to i64
14 ; CHECK-NEXT: --> (zext i32 %x to i64) U: [0,4294967296) S: [0,4294967296)
15 ; CHECK-NEXT: %zext_y = zext i32 %y to i64
16 ; CHECK-NEXT: --> (zext i32 %y to i64) U: [0,4294967296) S: [0,4294967296)
17 ; CHECK-NEXT: %umin_zext_x_zext_y = select i1 %cmp_zext_x_zext_y, i64 %zext_x, i64 %zext_y
18 ; CHECK-NEXT: --> ((zext i32 %x to i64) umin (zext i32 %y to i64)) U: [0,4294967296) S: [0,4294967296)
19 ; CHECK-NEXT: Determining loop execution counts for: @test_umin
21 %cmp_x_y = icmp ult i32 %x, %y
22 %umin_x_y = select i1 %cmp_x_y, i32 %x, i32 %y
23 %zext_umin_x_y = zext i32 %umin_x_y to i64
25 %zext_x = zext i32 %x to i64
26 %zext_y = zext i32 %y to i64
27 %cmp_zext_x_zext_y = icmp ult i64 %zext_x, %zext_y
28 %umin_zext_x_zext_y = select i1 %cmp_zext_x_zext_y, i64 %zext_x, i64 %zext_y
30 %they_are_same = icmp eq i64 %zext_umin_x_y, %umin_zext_x_zext_y
34 ; TODO: Make sure that zext(umax(x, y)) has same SCEV as umax(zext(x), zext(y)).
35 ; Equality proof: https://alive2.llvm.org/ce/z/5JHgxZ
36 define i1 @test_umax(i32 %x, i32 %y) {
37 ; CHECK-LABEL: 'test_umax'
38 ; CHECK-NEXT: Classifying expressions for: @test_umax
39 ; CHECK-NEXT: %umax_x_y = select i1 %cmp_x_y, i32 %y, i32 %x
40 ; CHECK-NEXT: --> (%x umax %y) U: full-set S: full-set
41 ; CHECK-NEXT: %zext_umax_x_y = zext i32 %umax_x_y to i64
42 ; CHECK-NEXT: --> ((zext i32 %x to i64) umax (zext i32 %y to i64)) U: [0,4294967296) S: [0,4294967296)
43 ; CHECK-NEXT: %zext_x = zext i32 %x to i64
44 ; CHECK-NEXT: --> (zext i32 %x to i64) U: [0,4294967296) S: [0,4294967296)
45 ; CHECK-NEXT: %zext_y = zext i32 %y to i64
46 ; CHECK-NEXT: --> (zext i32 %y to i64) U: [0,4294967296) S: [0,4294967296)
47 ; CHECK-NEXT: %umax_zext_x_zext_y = select i1 %cmp_zext_x_zext_y, i64 %zext_y, i64 %zext_x
48 ; CHECK-NEXT: --> ((zext i32 %x to i64) umax (zext i32 %y to i64)) U: [0,4294967296) S: [0,4294967296)
49 ; CHECK-NEXT: Determining loop execution counts for: @test_umax
51 %cmp_x_y = icmp ult i32 %x, %y
52 %umax_x_y = select i1 %cmp_x_y, i32 %y, i32 %x
53 %zext_umax_x_y = zext i32 %umax_x_y to i64
55 %zext_x = zext i32 %x to i64
56 %zext_y = zext i32 %y to i64
57 %cmp_zext_x_zext_y = icmp ult i64 %zext_x, %zext_y
58 %umax_zext_x_zext_y = select i1 %cmp_zext_x_zext_y, i64 %zext_y, i64 %zext_x
60 %they_are_same = icmp eq i64 %zext_umax_x_y, %umax_zext_x_zext_y
64 ; TODO: Make sure that sext(smin(x, y)) has same SCEV as smin(sext(x), sext(y)).
65 ; Equality proof: https://alive2.llvm.org/ce/z/HhYHzR
66 define i1 @test_smin(i32 %x, i32 %y) {
67 ; CHECK-LABEL: 'test_smin'
68 ; CHECK-NEXT: Classifying expressions for: @test_smin
69 ; CHECK-NEXT: %smin_x_y = select i1 %cmp_x_y, i32 %x, i32 %y
70 ; CHECK-NEXT: --> (%x smin %y) U: full-set S: full-set
71 ; CHECK-NEXT: %sext_smin_x_y = sext i32 %smin_x_y to i64
72 ; CHECK-NEXT: --> ((sext i32 %x to i64) smin (sext i32 %y to i64)) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
73 ; CHECK-NEXT: %sext_x = sext i32 %x to i64
74 ; CHECK-NEXT: --> (sext i32 %x to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
75 ; CHECK-NEXT: %sext_y = sext i32 %y to i64
76 ; CHECK-NEXT: --> (sext i32 %y to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
77 ; CHECK-NEXT: %smin_sext_x_sext_y = select i1 %cmp_sext_x_sext_y, i64 %sext_x, i64 %sext_y
78 ; CHECK-NEXT: --> ((sext i32 %x to i64) smin (sext i32 %y to i64)) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
79 ; CHECK-NEXT: Determining loop execution counts for: @test_smin
81 %cmp_x_y = icmp slt i32 %x, %y
82 %smin_x_y = select i1 %cmp_x_y, i32 %x, i32 %y
83 %sext_smin_x_y = sext i32 %smin_x_y to i64
85 %sext_x = sext i32 %x to i64
86 %sext_y = sext i32 %y to i64
87 %cmp_sext_x_sext_y = icmp slt i64 %sext_x, %sext_y
88 %smin_sext_x_sext_y = select i1 %cmp_sext_x_sext_y, i64 %sext_x, i64 %sext_y
90 %they_are_same = icmp eq i64 %sext_smin_x_y, %smin_sext_x_sext_y
94 ; TODO: Make sure that sext(smax(x, y)) has same SCEV as smax(sext(x), sext(y)).
95 ; Equality proof: https://alive2.llvm.org/ce/z/uou_u-
96 define i1 @test_smax(i32 %x, i32 %y) {
97 ; CHECK-LABEL: 'test_smax'
98 ; CHECK-NEXT: Classifying expressions for: @test_smax
99 ; CHECK-NEXT: %smax_x_y = select i1 %cmp_x_y, i32 %y, i32 %x
100 ; CHECK-NEXT: --> (%x smax %y) U: full-set S: full-set
101 ; CHECK-NEXT: %sext_smax_x_y = sext i32 %smax_x_y to i64
102 ; CHECK-NEXT: --> ((sext i32 %x to i64) smax (sext i32 %y to i64)) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
103 ; CHECK-NEXT: %sext_x = sext i32 %x to i64
104 ; CHECK-NEXT: --> (sext i32 %x to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
105 ; CHECK-NEXT: %sext_y = sext i32 %y to i64
106 ; CHECK-NEXT: --> (sext i32 %y to i64) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
107 ; CHECK-NEXT: %smax_sext_x_sext_y = select i1 %cmp_sext_x_sext_y, i64 %sext_y, i64 %sext_x
108 ; CHECK-NEXT: --> ((sext i32 %x to i64) smax (sext i32 %y to i64)) U: [-2147483648,2147483648) S: [-2147483648,2147483648)
109 ; CHECK-NEXT: Determining loop execution counts for: @test_smax
111 %cmp_x_y = icmp slt i32 %x, %y
112 %smax_x_y = select i1 %cmp_x_y, i32 %y, i32 %x
113 %sext_smax_x_y = sext i32 %smax_x_y to i64
115 %sext_x = sext i32 %x to i64
116 %sext_y = sext i32 %y to i64
117 %cmp_sext_x_sext_y = icmp slt i64 %sext_x, %sext_y
118 %smax_sext_x_sext_y = select i1 %cmp_sext_x_sext_y, i64 %sext_y, i64 %sext_x
120 %they_are_same = icmp eq i64 %sext_smax_x_y, %smax_sext_x_sext_y
121 ret i1 %they_are_same
124 ; TODO: Make sure that zext(umin_seq(x, y)) has same SCEV as umin_seq(zext(x), zext(y)).
125 ; Equality proof: https://alive2.llvm.org/ce/z/X8kaNx
126 define i1 @test_umin_seq(i1 %x, i1 %y) {
127 ; CHECK-LABEL: 'test_umin_seq'
128 ; CHECK-NEXT: Classifying expressions for: @test_umin_seq
129 ; CHECK-NEXT: %x_umin_seq_y = select i1 %x, i1 %y, i1 false
130 ; CHECK-NEXT: --> (%x umin_seq %y) U: full-set S: full-set
131 ; CHECK-NEXT: %zext_x_umin_seq_y = zext i1 %x_umin_seq_y to i64
132 ; CHECK-NEXT: --> ((zext i1 %x to i64) umin_seq (zext i1 %y to i64)) U: [0,2) S: [0,2)
133 ; CHECK-NEXT: %zext_x = zext i1 %x to i64
134 ; CHECK-NEXT: --> (zext i1 %x to i64) U: [0,2) S: [0,2)
135 ; CHECK-NEXT: %zext_y = zext i1 %y to i64
136 ; CHECK-NEXT: --> (zext i1 %y to i64) U: [0,2) S: [0,2)
137 ; CHECK-NEXT: %umin_zext_x_zext_y = select i1 %cmp_zext_x_zext_y, i64 %zext_x, i64 %zext_y
138 ; CHECK-NEXT: --> ((zext i1 %x to i64) umin (zext i1 %y to i64)) U: [0,2) S: [0,2)
139 ; CHECK-NEXT: %umin_seq_zext_x_xext_y = select i1 %zext_x_is_0, i64 0, i64 %umin_zext_x_zext_y
140 ; CHECK-NEXT: --> ((zext i1 %x to i64) umin_seq (zext i1 %y to i64)) U: [0,2) S: [0,2)
141 ; CHECK-NEXT: Determining loop execution counts for: @test_umin_seq
143 %x_umin_seq_y = select i1 %x, i1 %y, i1 false
144 %zext_x_umin_seq_y = zext i1 %x_umin_seq_y to i64
146 %zext_x = zext i1 %x to i64
147 %zext_y = zext i1 %y to i64
148 %zext_x_is_0 = icmp eq i64 %zext_x, 0
149 %cmp_zext_x_zext_y = icmp ult i64 %zext_x, %zext_y
150 %umin_zext_x_zext_y = select i1 %cmp_zext_x_zext_y, i64 %zext_x, i64 %zext_y
151 %umin_seq_zext_x_xext_y = select i1 %zext_x_is_0, i64 0, i64 %umin_zext_x_zext_y
153 %they_are_same = icmp eq i64 %zext_x_umin_seq_y, %umin_seq_zext_x_xext_y
154 ret i1 %they_are_same