1 ; RUN: opt -S -analyze -scalar-evolution < %s | FileCheck %s
5 define void @f0(i8* %len_addr) {
6 ; CHECK-LABEL: Classifying expressions for: @f0
8 %len = load i8, i8* %len_addr, !range !0
9 %len_norange = load i8, i8* %len_addr
10 ; CHECK: %len = load i8, i8* %len_addr, !range !0
11 ; CHECK-NEXT: --> %len U: [0,127) S: [0,127)
12 ; CHECK: %len_norange = load i8, i8* %len_addr
13 ; CHECK-NEXT: --> %len_norange U: full-set S: full-set
17 ; CHECK: %t0 = add i8 %len, 1
18 ; CHECK-NEXT: --> (1 + %len)<nuw><nsw> U: [1,-128) S: [1,-128)
19 ; CHECK: %t1 = add i8 %len, 2
20 ; CHECK-NEXT: --> (2 + %len)<nuw> U: [2,-127) S: [2,-127)
24 ; CHECK: %t2 = sub i8 %len, 1
25 ; CHECK-NEXT: --> (-1 + %len)<nsw> U: [-1,126) S: [-1,126)
26 ; CHECK: %t3 = sub i8 %len, 2
27 ; CHECK-NEXT: --> (-2 + %len)<nsw> U: [-2,125) S: [-2,125)
29 %q0 = add i8 %len_norange, 1
30 %q1 = add i8 %len_norange, 2
31 ; CHECK: %q0 = add i8 %len_norange, 1
32 ; CHECK-NEXT: --> (1 + %len_norange) U: full-set S: full-set
33 ; CHECK: %q1 = add i8 %len_norange, 2
34 ; CHECK-NEXT: --> (2 + %len_norange) U: full-set S: full-set
36 %q2 = sub i8 %len_norange, 1
37 %q3 = sub i8 %len_norange, 2
38 ; CHECK: %q2 = sub i8 %len_norange, 1
39 ; CHECK-NEXT: --> (-1 + %len_norange) U: full-set S: full-set
40 ; CHECK: %q3 = sub i8 %len_norange, 2
41 ; CHECK-NEXT: --> (-2 + %len_norange) U: full-set S: full-set
46 define void @f1(i8* %len_addr) {
47 ; CHECK-LABEL: Classifying expressions for: @f1
49 %len = load i8, i8* %len_addr, !range !0
50 %len_norange = load i8, i8* %len_addr
51 ; CHECK: %len = load i8, i8* %len_addr, !range !0
52 ; CHECK-NEXT: --> %len U: [0,127) S: [0,127)
53 ; CHECK: %len_norange = load i8, i8* %len_addr
54 ; CHECK-NEXT: --> %len_norange U: full-set S: full-set
58 ; CHECK: %t0 = add i8 %len, -1
59 ; CHECK-NEXT: --> (-1 + %len)<nsw> U: [-1,126) S: [-1,126)
60 ; CHECK: %t1 = add i8 %len, -2
61 ; CHECK-NEXT: --> (-2 + %len)<nsw> U: [-2,125) S: [-2,125)
63 %t0.sext = sext i8 %t0 to i16
64 %t1.sext = sext i8 %t1 to i16
65 ; CHECK: %t0.sext = sext i8 %t0 to i16
66 ; CHECK-NEXT: --> (-1 + (zext i8 %len to i16))<nsw> U: [-1,126) S: [-1,126)
67 ; CHECK: %t1.sext = sext i8 %t1 to i16
68 ; CHECK-NEXT: --> (-2 + (zext i8 %len to i16))<nsw> U: [-2,125) S: [-2,125)
70 %q0 = add i8 %len_norange, 1
71 %q1 = add i8 %len_norange, 2
72 ; CHECK: %q0 = add i8 %len_norange, 1
73 ; CHECK-NEXT: --> (1 + %len_norange) U: full-set S: full-set
74 ; CHECK: %q1 = add i8 %len_norange, 2
75 ; CHECK-NEXT: --> (2 + %len_norange) U: full-set S: full-set
77 %q0.sext = sext i8 %q0 to i16
78 %q1.sext = sext i8 %q1 to i16
79 ; CHECK: %q0.sext = sext i8 %q0 to i16
80 ; CHECK-NEXT: --> (sext i8 (1 + %len_norange) to i16) U: [-128,128) S: [-128,128)
81 ; CHECK: %q1.sext = sext i8 %q1 to i16
82 ; CHECK-NEXT: --> (sext i8 (2 + %len_norange) to i16) U: [-128,128) S: [-128,128)
87 define void @f2(i8* %len_addr) {
88 ; CHECK-LABEL: Classifying expressions for: @f2
90 %len = load i8, i8* %len_addr, !range !0
91 %len_norange = load i8, i8* %len_addr
92 ; CHECK: %len = load i8, i8* %len_addr, !range !0
93 ; CHECK-NEXT: --> %len U: [0,127) S: [0,127)
94 ; CHECK: %len_norange = load i8, i8* %len_addr
95 ; CHECK-NEXT: --> %len_norange U: full-set S: full-set
99 ; CHECK: %t0 = add i8 %len, 1
100 ; CHECK-NEXT: --> (1 + %len)<nuw><nsw>
101 ; CHECK: %t1 = add i8 %len, 2
102 ; CHECK-NEXT: --> (2 + %len)<nuw>
104 %t0.zext = zext i8 %t0 to i16
105 %t1.zext = zext i8 %t1 to i16
106 ; CHECK: %t0.zext = zext i8 %t0 to i16
107 ; CHECK-NEXT: --> (1 + (zext i8 %len to i16))<nuw><nsw> U: [1,128) S: [1,128)
108 ; CHECK: %t1.zext = zext i8 %t1 to i16
109 ; CHECK-NEXT: --> (2 + (zext i8 %len to i16))<nuw><nsw> U: [2,129) S: [2,129)
111 %q0 = add i8 %len_norange, 1
112 %q1 = add i8 %len_norange, 2
113 %q0.zext = zext i8 %q0 to i16
114 %q1.zext = zext i8 %q1 to i16
116 ; CHECK: %q0.zext = zext i8 %q0 to i16
117 ; CHECK-NEXT: --> (zext i8 (1 + %len_norange) to i16) U: [0,256) S: [0,256)
118 ; CHECK: %q1.zext = zext i8 %q1 to i16
119 ; CHECK-NEXT: --> (zext i8 (2 + %len_norange) to i16) U: [0,256) S: [0,256)
124 @z_addr = external global [16 x i8], align 4
125 @z_addr_noalign = external global [16 x i8]
127 %union = type { [10 x [4 x float]] }
128 @tmp_addr = external unnamed_addr global { %union, [2000 x i8] }
130 define void @f3(i8* %x_addr, i8* %y_addr, i32* %tmp_addr) {
131 ; CHECK-LABEL: Classifying expressions for: @f3
133 %x = load i8, i8* %x_addr
136 %t1.zext = zext i8 %t1 to i16
137 ; CHECK: %t1.zext = zext i8 %t1 to i16
138 ; CHECK-NEXT: --> (1 + (zext i8 (4 + (4 * %x)) to i16))<nuw><nsw> U: [1,254) S: [1,257)
142 %q1.zext = zext i8 %q1 to i16
143 ; CHECK: %q1.zext = zext i8 %q1 to i16
144 ; CHECK-NEXT: --> (3 + (zext i8 (4 + (4 * %x)) to i16))<nuw><nsw> U: [3,256) S: [3,259)
148 %p1.zext = zext i8 %p1 to i16
149 ; CHECK: %p1.zext = zext i8 %p1 to i16
150 ; CHECK-NEXT: --> (zext i8 (8 + (4 * %x)) to i16) U: [0,253) S: [0,256)
153 %r1 = add i8 %r0, 254
154 %r1.zext = zext i8 %r1 to i16
155 ; CHECK: %r1.zext = zext i8 %r1 to i16
156 ; CHECK-NEXT: --> (2 + (zext i8 (-4 + (4 * %x)) to i16))<nuw><nsw> U: [2,255) S: [2,258)
158 %y = load i8, i8* %y_addr
161 %s2 = add i8 %s0, %s1
163 %s3.zext = zext i8 %s3 to i16
164 ; CHECK: %s3.zext = zext i8 %s3 to i16
165 ; CHECK-NEXT: --> (1 + (zext i8 (4 + (32 * %x) + (36 * %y)) to i16))<nuw><nsw> U: [1,254) S: [1,257)
167 %ptr = bitcast [16 x i8]* @z_addr to i8*
168 %int0 = ptrtoint i8* %ptr to i32
169 %int5 = add i32 %int0, 5
170 %int.zext = zext i32 %int5 to i64
171 ; CHECK: %int.zext = zext i32 %int5 to i64
172 ; CHECK-NEXT: --> (1 + (zext i32 (4 + %int0) to i64))<nuw><nsw> U: [1,4294967294) S: [1,4294967297)
174 %ptr_noalign = bitcast [16 x i8]* @z_addr_noalign to i8*
175 %int0_na = ptrtoint i8* %ptr_noalign to i32
176 %int5_na = add i32 %int0_na, 5
177 %int.zext_na = zext i32 %int5_na to i64
178 ; CHECK: %int.zext_na = zext i32 %int5_na to i64
179 ; CHECK-NEXT: --> (zext i32 (5 + %int0_na) to i64) U: [0,4294967296) S: [0,4294967296)
181 %tmp = load i32, i32* %tmp_addr
182 %mul = and i32 %tmp, -4
183 %add4 = add i32 %mul, 4
184 %add4.zext = zext i32 %add4 to i64
185 %sunkaddr3 = mul i64 %add4.zext, 4
186 %sunkaddr4 = getelementptr inbounds i8, i8* bitcast ({ %union, [2000 x i8] }* @tmp_addr to i8*), i64 %sunkaddr3
187 %sunkaddr5 = getelementptr inbounds i8, i8* %sunkaddr4, i64 4096
188 %addr4.cast = bitcast i8* %sunkaddr5 to i32*
189 %addr4.incr = getelementptr i32, i32* %addr4.cast, i64 1
190 ; CHECK: %addr4.incr = getelementptr i32, i32* %addr4.cast, i64 1
191 ; CHECK-NEXT: --> ([[C:4100]] + ([[SIZE:4]] * (zext i32 ([[OFFSET:4]] + ([[STRIDE:4]] * (%tmp /u [[STRIDE]]))<nuw>) to i64))<nuw><nsw> + @tmp_addr)
193 %add5 = add i32 %mul, 5
194 %add5.zext = zext i32 %add5 to i64
195 %sunkaddr0 = mul i64 %add5.zext, 4
196 %sunkaddr1 = getelementptr inbounds i8, i8* bitcast ({ %union, [2000 x i8] }* @tmp_addr to i8*), i64 %sunkaddr0
197 %sunkaddr2 = getelementptr inbounds i8, i8* %sunkaddr1, i64 4096
198 %addr5.cast = bitcast i8* %sunkaddr2 to i32*
199 ; CHECK: %addr5.cast = bitcast i8* %sunkaddr2 to i32*
200 ; CHECK-NEXT: --> ([[C]] + ([[SIZE]] * (zext i32 ([[OFFSET]] + ([[STRIDE]] * (%tmp /u [[STRIDE]]))<nuw>) to i64))<nuw><nsw> + @tmp_addr)