David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 1 | ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| 2 | ; RUN: opt < %s -instcombine -S | FileCheck %s |
| 3 | |
| 4 | target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| 5 | |
| 6 | @key = constant [4 x i8] c"key\00", align 1 |
| 7 | @abc = constant [8 x i8] c"abc\00de\00\00", align 1 |
| 8 | |
| 9 | declare void @use(i32) |
| 10 | |
| 11 | define i32 @strcmp_memcmp([12 x i8]* dereferenceable (12) %buf) { |
| 12 | ; CHECK-LABEL: @strcmp_memcmp( |
| 13 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 14 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 15 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 16 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 17 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 18 | ; |
| 19 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 20 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 21 | %cmp = icmp eq i32 %call, 0 |
| 22 | %conv = zext i1 %cmp to i32 |
| 23 | ret i32 %conv |
| 24 | } |
| 25 | |
| 26 | declare i32 @strcmp(i8* nocapture, i8* nocapture) |
| 27 | |
| 28 | define i32 @strcmp_memcmp2([12 x i8]* dereferenceable (12) %buf) { |
| 29 | ; CHECK-LABEL: @strcmp_memcmp2( |
| 30 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 31 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 32 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 33 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 34 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 35 | ; |
| 36 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 37 | %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string) |
| 38 | %cmp = icmp eq i32 %call, 0 |
| 39 | %conv = zext i1 %cmp to i32 |
| 40 | ret i32 %conv |
| 41 | } |
| 42 | |
| 43 | define i32 @strcmp_memcmp3([12 x i8]* dereferenceable (12) %buf) { |
| 44 | ; CHECK-LABEL: @strcmp_memcmp3( |
| 45 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 46 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 47 | ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 48 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 49 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 50 | ; |
| 51 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 52 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 53 | %cmp = icmp ne i32 %call, 0 |
| 54 | %conv = zext i1 %cmp to i32 |
| 55 | ret i32 %conv |
| 56 | } |
| 57 | |
| 58 | define i32 @strcmp_memcmp4([12 x i8]* dereferenceable (12) %buf) { |
| 59 | ; CHECK-LABEL: @strcmp_memcmp4( |
| 60 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 61 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 62 | ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 63 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 64 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 65 | ; |
| 66 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 67 | %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string) |
| 68 | %cmp = icmp ne i32 %call, 0 |
| 69 | %conv = zext i1 %cmp to i32 |
| 70 | ret i32 %conv |
| 71 | } |
| 72 | |
| 73 | define i32 @strcmp_memcmp5([5 x i8]* dereferenceable (5) %buf) { |
| 74 | ; CHECK-LABEL: @strcmp_memcmp5( |
| 75 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [5 x i8], [5 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 76 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 77 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 78 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 79 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 80 | ; |
| 81 | %string = getelementptr inbounds [5 x i8], [5 x i8]* %buf, i64 0, i64 0 |
| 82 | %call = call i32 @strcmp(i8* nonnull align 1 %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 83 | %cmp = icmp eq i32 %call, 0 |
| 84 | %conv = zext i1 %cmp to i32 |
| 85 | ret i32 %conv |
| 86 | } |
| 87 | |
| 88 | define i32 @strcmp_memcmp6([12 x i8]* dereferenceable (12) %buf) { |
| 89 | ; CHECK-LABEL: @strcmp_memcmp6( |
| 90 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 91 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 92 | ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 93 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 94 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 95 | ; |
| 96 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 97 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 98 | %cmp = icmp sgt i32 %call, 0 |
| 99 | %conv = zext i1 %cmp to i32 |
| 100 | ret i32 %conv |
| 101 | } |
| 102 | |
| 103 | define i32 @strcmp_memcmp7([12 x i8]* dereferenceable (12) %buf) { |
| 104 | ; CHECK-LABEL: @strcmp_memcmp7( |
| 105 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 106 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 107 | ; CHECK-NEXT: [[MEMCMP_LOBIT:%.*]] = lshr i32 [[MEMCMP]], 31 |
| 108 | ; CHECK-NEXT: ret i32 [[MEMCMP_LOBIT]] |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 109 | ; |
| 110 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 111 | %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string) |
| 112 | %cmp = icmp slt i32 %call, 0 |
| 113 | %conv = zext i1 %cmp to i32 |
| 114 | ret i32 %conv |
| 115 | } |
| 116 | |
| 117 | define i32 @strcmp_memcmp8([4 x i8]* dereferenceable (4) %buf) { |
| 118 | ; CHECK-LABEL: @strcmp_memcmp8( |
| 119 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [4 x i8], [4 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 120 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 121 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 122 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 123 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 124 | ; |
| 125 | %string = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i64 0, i64 0 |
| 126 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 127 | %cmp = icmp eq i32 %call, 0 |
| 128 | %conv = zext i1 %cmp to i32 |
| 129 | ret i32 %conv |
| 130 | } |
| 131 | |
| 132 | define i32 @strcmp_memcmp9([12 x i8]* dereferenceable (12) %buf) { |
| 133 | ; CHECK-LABEL: @strcmp_memcmp9( |
| 134 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 135 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 4) |
| 136 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 137 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 138 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 139 | ; |
| 140 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 141 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0)) |
| 142 | %cmp = icmp eq i32 %call, 0 |
| 143 | %conv = zext i1 %cmp to i32 |
| 144 | ret i32 %conv |
| 145 | } |
| 146 | |
| 147 | |
| 148 | define i32 @strncmp_memcmp([12 x i8]* dereferenceable (12) %buf) { |
| 149 | ; CHECK-LABEL: @strncmp_memcmp( |
| 150 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 151 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2) |
| 152 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 153 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 154 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 155 | ; |
| 156 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 157 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2) |
| 158 | %cmp = icmp eq i32 %call, 0 |
| 159 | %conv = zext i1 %cmp to i32 |
| 160 | ret i32 %conv |
| 161 | } |
| 162 | |
| 163 | declare i32 @strncmp(i8* nocapture, i8* nocapture, i64) |
| 164 | |
| 165 | define i32 @strncmp_memcmp2([12 x i8]* dereferenceable (12) %buf) { |
| 166 | ; CHECK-LABEL: @strncmp_memcmp2( |
| 167 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 168 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 169 | ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 170 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 171 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 172 | ; |
| 173 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 174 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 11) |
| 175 | %cmp = icmp ne i32 %call, 0 |
| 176 | %conv = zext i1 %cmp to i32 |
| 177 | ret i32 %conv |
| 178 | } |
| 179 | |
| 180 | define i32 @strncmp_memcmp3([12 x i8]* dereferenceable (12) %buf) { |
| 181 | ; CHECK-LABEL: @strncmp_memcmp3( |
| 182 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 183 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 184 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 185 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 186 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 187 | ; |
| 188 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 189 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 11) |
| 190 | %cmp = icmp eq i32 %call, 0 |
| 191 | %conv = zext i1 %cmp to i32 |
| 192 | ret i32 %conv |
| 193 | } |
| 194 | |
| 195 | define i32 @strncmp_memcmp4([12 x i8]* dereferenceable (12) %buf) { |
| 196 | ; CHECK-LABEL: @strncmp_memcmp4( |
| 197 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 198 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 199 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 200 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 201 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 202 | ; |
| 203 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 204 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 5) |
| 205 | %cmp = icmp eq i32 %call, 0 |
| 206 | %conv = zext i1 %cmp to i32 |
| 207 | ret i32 %conv |
| 208 | } |
| 209 | |
| 210 | define i32 @strncmp_memcmp5([12 x i8]* dereferenceable (12) %buf) { |
| 211 | ; CHECK-LABEL: @strncmp_memcmp5( |
| 212 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 213 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 214 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 215 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 216 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 217 | ; |
| 218 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 219 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5) |
| 220 | %cmp = icmp eq i32 %call, 0 |
| 221 | %conv = zext i1 %cmp to i32 |
| 222 | ret i32 %conv |
| 223 | } |
| 224 | |
| 225 | |
| 226 | define i32 @strncmp_memcmp6([12 x i8]* dereferenceable (12) %buf) { |
| 227 | ; CHECK-LABEL: @strncmp_memcmp6( |
| 228 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 229 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 230 | ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 231 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 232 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 233 | ; |
| 234 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 235 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5) |
| 236 | %cmp = icmp ne i32 %call, 0 |
| 237 | %conv = zext i1 %cmp to i32 |
| 238 | ret i32 %conv |
| 239 | } |
| 240 | |
| 241 | define i32 @strncmp_memcmp7([12 x i8]* dereferenceable (12) %buf) { |
| 242 | ; CHECK-LABEL: @strncmp_memcmp7( |
| 243 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 244 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 245 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 246 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 247 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 248 | ; |
| 249 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 250 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 4) |
| 251 | %cmp = icmp eq i32 %call, 0 |
| 252 | %conv = zext i1 %cmp to i32 |
| 253 | ret i32 %conv |
| 254 | } |
| 255 | |
| 256 | define i32 @strncmp_memcmp8([12 x i8]* dereferenceable (12) %buf) { |
| 257 | ; CHECK-LABEL: @strncmp_memcmp8( |
| 258 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 259 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 3) |
| 260 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 261 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 262 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 263 | ; |
| 264 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 265 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 3) |
| 266 | %cmp = icmp eq i32 %call, 0 |
| 267 | %conv = zext i1 %cmp to i32 |
| 268 | ret i32 %conv |
| 269 | } |
| 270 | |
| 271 | define i32 @strncmp_memcmp9([12 x i8]* dereferenceable (12) %buf) { |
| 272 | ; CHECK-LABEL: @strncmp_memcmp9( |
| 273 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 274 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 275 | ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 276 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 277 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 278 | ; |
| 279 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 280 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5) |
| 281 | %cmp = icmp sgt i32 %call, 0 |
| 282 | %conv = zext i1 %cmp to i32 |
| 283 | ret i32 %conv |
| 284 | } |
| 285 | |
| 286 | define i32 @strncmp_memcmp10([12 x i8]* dereferenceable (12) %buf) { |
| 287 | ; CHECK-LABEL: @strncmp_memcmp10( |
| 288 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 289 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 290 | ; CHECK-NEXT: [[MEMCMP_LOBIT:%.*]] = lshr i32 [[MEMCMP]], 31 |
| 291 | ; CHECK-NEXT: ret i32 [[MEMCMP_LOBIT]] |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 292 | ; |
| 293 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 294 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5) |
| 295 | %cmp = icmp slt i32 %call, 0 |
| 296 | %conv = zext i1 %cmp to i32 |
| 297 | ret i32 %conv |
| 298 | } |
| 299 | |
| 300 | define i32 @strncmp_memcmp11([12 x i8]* dereferenceable (12) %buf) { |
| 301 | ; CHECK-LABEL: @strncmp_memcmp11( |
| 302 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 303 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 304 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 305 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 306 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 307 | ; |
| 308 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 309 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 12) |
| 310 | %cmp = icmp eq i32 %call, 0 |
| 311 | %conv = zext i1 %cmp to i32 |
| 312 | ret i32 %conv |
| 313 | } |
| 314 | |
| 315 | define i32 @strncmp_memcmp12([12 x i8]* dereferenceable (12) %buf) { |
| 316 | ; CHECK-LABEL: @strncmp_memcmp12( |
| 317 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 318 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 4) |
| 319 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 320 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 321 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 322 | ; |
| 323 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 324 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 12) |
| 325 | %cmp = icmp eq i32 %call, 0 |
| 326 | %conv = zext i1 %cmp to i32 |
| 327 | ret i32 %conv |
| 328 | } |
| 329 | |
| 330 | define i32 @strncmp_memcmp13([12 x i8]* dereferenceable (12) %buf) { |
| 331 | ; CHECK-LABEL: @strncmp_memcmp13( |
| 332 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 333 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 2) |
| 334 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 335 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 336 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 337 | ; |
| 338 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 339 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 2) |
| 340 | %cmp = icmp eq i32 %call, 0 |
| 341 | %conv = zext i1 %cmp to i32 |
| 342 | ret i32 %conv |
| 343 | } |
| 344 | |
| 345 | define i32 @strncmp_memcmp14([12 x i8]* dereferenceable (12) %buf) { |
| 346 | ; CHECK-LABEL: @strncmp_memcmp14( |
| 347 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
David Bolvansky | 909889b | 2018-08-10 04:32:54 +0000 | [diff] [blame] | 348 | ; CHECK-NEXT: [[MEMCMP:%.*]] = call i32 @memcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 4) |
| 349 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[MEMCMP]], 0 |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 350 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 351 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 352 | ; |
| 353 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 354 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([8 x i8], [8 x i8]* @abc, i64 0, i64 0), i64 12) |
| 355 | %cmp = icmp eq i32 %call, 0 |
| 356 | %conv = zext i1 %cmp to i32 |
| 357 | ret i32 %conv |
| 358 | } |
| 359 | |
| 360 | ; Negative tests |
| 361 | define i32 @strcmp_memcmp_bad([12 x i8]* dereferenceable (12) %buf) { |
| 362 | ; CHECK-LABEL: @strcmp_memcmp_bad( |
| 363 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 364 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 365 | ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[CALL]], 3 |
| 366 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 367 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 368 | ; |
| 369 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 370 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 371 | %cmp = icmp sgt i32 %call, 3 |
| 372 | %conv = zext i1 %cmp to i32 |
| 373 | ret i32 %conv |
| 374 | } |
| 375 | |
| 376 | define i32 @strcmp_memcmp_bad2([12 x i8]* dereferenceable (12) %buf) { |
| 377 | ; CHECK-LABEL: @strcmp_memcmp_bad2( |
| 378 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 379 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]]) |
| 380 | ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CALL]], 3 |
| 381 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 382 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 383 | ; |
| 384 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 385 | %call = call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string) |
| 386 | %cmp = icmp slt i32 %call, 3 |
| 387 | %conv = zext i1 %cmp to i32 |
| 388 | ret i32 %conv |
| 389 | } |
| 390 | |
| 391 | define i32 @strcmp_memcmp_bad3([12 x i8]* dereferenceable (12) %buf) { |
| 392 | ; CHECK-LABEL: @strcmp_memcmp_bad3( |
| 393 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 394 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 395 | ; CHECK-NEXT: ret i32 [[CALL]] |
| 396 | ; |
| 397 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 398 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 399 | ret i32 %call |
| 400 | } |
| 401 | |
| 402 | |
| 403 | define i32 @strcmp_memcmp_bad4(i8* nocapture readonly %buf) { |
| 404 | ; CHECK-LABEL: @strcmp_memcmp_bad4( |
| 405 | ; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* [[BUF:%.*]]) |
| 406 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 |
| 407 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 408 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 409 | ; |
| 410 | %call = tail call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* %buf) |
| 411 | %cmp = icmp eq i32 %call, 0 |
| 412 | %conv = zext i1 %cmp to i32 |
| 413 | ret i32 %conv |
| 414 | } |
| 415 | |
| 416 | |
| 417 | define i32 @strcmp_memcmp_bad5([3 x i8]* dereferenceable (3) %buf) { |
| 418 | ; CHECK-LABEL: @strcmp_memcmp_bad5( |
| 419 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [3 x i8], [3 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 420 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 421 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 |
| 422 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 423 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 424 | ; |
| 425 | %string = getelementptr inbounds [3 x i8], [3 x i8]* %buf, i64 0, i64 0 |
| 426 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 427 | %cmp = icmp eq i32 %call, 0 |
| 428 | %conv = zext i1 %cmp to i32 |
| 429 | ret i32 %conv |
| 430 | } |
| 431 | |
| 432 | define i32 @strcmp_memcmp_bad6([4 x i8]* dereferenceable (4) %buf, i8* nocapture readonly %k) { |
| 433 | ; CHECK-LABEL: @strcmp_memcmp_bad6( |
| 434 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [4 x i8], [4 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 435 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* nonnull [[STRING]], i8* [[K:%.*]]) |
| 436 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 |
| 437 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 438 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 439 | ; |
| 440 | %string = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i64 0, i64 0 |
| 441 | %call = call i32 @strcmp(i8* nonnull %string, i8* %k) |
| 442 | %cmp = icmp eq i32 %call, 0 |
| 443 | %conv = zext i1 %cmp to i32 |
| 444 | ret i32 %conv |
| 445 | } |
| 446 | |
| 447 | define i32 @strcmp_memcmp_bad7(i8* nocapture readonly %k) { |
| 448 | ; CHECK-LABEL: @strcmp_memcmp_bad7( |
| 449 | ; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* [[K:%.*]]) |
| 450 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 |
| 451 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 452 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 453 | ; |
| 454 | %call = tail call i32 @strcmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* %k) |
| 455 | %cmp = icmp eq i32 %call, 0 |
| 456 | %conv = zext i1 %cmp to i32 |
| 457 | ret i32 %conv |
| 458 | } |
| 459 | |
| 460 | define i32 @strcmp_memcmp_bad8([4 x i8]* dereferenceable (4) %buf) { |
| 461 | ; CHECK-LABEL: @strcmp_memcmp_bad8( |
| 462 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [4 x i8], [4 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 463 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 464 | ; CHECK-NEXT: tail call void @use(i32 [[CALL]]) |
| 465 | ; CHECK-NEXT: ret i32 0 |
| 466 | ; |
| 467 | %string = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i64 0, i64 0 |
| 468 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 469 | tail call void @use(i32 %call) |
| 470 | ret i32 0 |
| 471 | } |
| 472 | |
| 473 | define i32 @strncmp_memcmp_bad([12 x i8]* dereferenceable (12) %buf) { |
| 474 | ; CHECK-LABEL: @strncmp_memcmp_bad( |
| 475 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 476 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 5) |
| 477 | ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[CALL]], 3 |
| 478 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 479 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 480 | ; |
| 481 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 482 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5) |
| 483 | %cmp = icmp sgt i32 %call, 3 |
| 484 | %conv = zext i1 %cmp to i32 |
| 485 | ret i32 %conv |
| 486 | } |
| 487 | |
| 488 | |
| 489 | define i32 @strncmp_memcmp_bad1([12 x i8]* dereferenceable (12) %buf) { |
| 490 | ; CHECK-LABEL: @strncmp_memcmp_bad1( |
| 491 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 492 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 5) |
| 493 | ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CALL]], 3 |
| 494 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 495 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 496 | ; |
| 497 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 498 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 5) |
| 499 | %cmp = icmp slt i32 %call, 3 |
| 500 | %conv = zext i1 %cmp to i32 |
| 501 | ret i32 %conv |
| 502 | } |
| 503 | |
| 504 | define i32 @strncmp_memcmp_bad2([12 x i8]* dereferenceable (12) %buf, i64 %n) { |
| 505 | ; CHECK-LABEL: @strncmp_memcmp_bad2( |
| 506 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 507 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull [[STRING]], i64 [[N:%.*]]) |
| 508 | ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[CALL]], 1 |
| 509 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 510 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 511 | ; |
| 512 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 513 | %call = call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* nonnull %string, i64 %n) |
| 514 | %cmp = icmp slt i32 %call, 1 |
| 515 | %conv = zext i1 %cmp to i32 |
| 516 | ret i32 %conv |
| 517 | } |
| 518 | |
| 519 | define i32 @strncmp_memcmp_bad3(i8* nocapture readonly %k) { |
| 520 | ; CHECK-LABEL: @strncmp_memcmp_bad3( |
| 521 | ; CHECK-NEXT: [[CALL:%.*]] = tail call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* [[K:%.*]], i64 2) |
| 522 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 |
| 523 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 524 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 525 | ; |
| 526 | %call = tail call i32 @strncmp(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i8* %k, i64 2) |
| 527 | %cmp = icmp eq i32 %call, 0 |
| 528 | %conv = zext i1 %cmp to i32 |
| 529 | ret i32 %conv |
| 530 | } |
| 531 | |
| 532 | define i32 @strncmp_memcmp_bad4([4 x i8]* dereferenceable (4) %buf) { |
| 533 | ; CHECK-LABEL: @strncmp_memcmp_bad4( |
| 534 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [4 x i8], [4 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 535 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strncmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2) |
| 536 | ; CHECK-NEXT: tail call void @use(i32 [[CALL]]) |
| 537 | ; CHECK-NEXT: ret i32 0 |
| 538 | ; |
| 539 | %string = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i64 0, i64 0 |
| 540 | %call = call i32 @strncmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0), i64 2) |
| 541 | tail call void @use(i32 %call) |
| 542 | ret i32 0 |
| 543 | } |
| 544 | |
Matt Morehouse | e62fc3d | 2018-09-19 19:37:24 +0000 | [diff] [blame] | 545 | define i32 @strcmp_memcmp_msan([12 x i8]* dereferenceable (12) %buf) sanitize_memory { |
| 546 | ; CHECK-LABEL: @strcmp_memcmp_msan( |
| 547 | ; CHECK-NEXT: [[STRING:%.*]] = getelementptr inbounds [12 x i8], [12 x i8]* [[BUF:%.*]], i64 0, i64 0 |
| 548 | ; CHECK-NEXT: [[CALL:%.*]] = call i32 @strcmp(i8* nonnull [[STRING]], i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 549 | ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[CALL]], 0 |
| 550 | ; CHECK-NEXT: [[CONV:%.*]] = zext i1 [[CMP]] to i32 |
| 551 | ; CHECK-NEXT: ret i32 [[CONV]] |
| 552 | ; |
| 553 | %string = getelementptr inbounds [12 x i8], [12 x i8]* %buf, i64 0, i64 0 |
| 554 | %call = call i32 @strcmp(i8* nonnull %string, i8* getelementptr inbounds ([4 x i8], [4 x i8]* @key, i64 0, i64 0)) |
| 555 | %cmp = icmp eq i32 %call, 0 |
| 556 | %conv = zext i1 %cmp to i32 |
| 557 | ret i32 %conv |
| 558 | } |
| 559 | |
David Bolvansky | b82a5ec | 2018-08-05 05:46:56 +0000 | [diff] [blame] | 560 | declare i32 @memcmp(i8* nocapture, i8* nocapture, i64) |