|
| 1 | +// Check that backend stack layout diagnostics are working correctly with and |
| 2 | +// without debug information, and when optimizations are enabled |
| 3 | +// |
| 4 | +// REQUIRES: x86-registered-target |
| 5 | +// |
| 6 | +// RUN: rm -rf %t |
| 7 | +// RUN: mkdir -p %t |
| 8 | +// RUN: %clang_cc1 %s -emit-codegen-only -triple x86_64-unknown-linux-gnu -target-cpu corei7 -Rpass-analysis=stack-frame-layout -o /dev/null -O0 2>&1 | FileCheck %s --check-prefix=O0-NODEBUG |
| 9 | +// RUN: %clang_cc1 %s -emit-codegen-only -triple x86_64-unknown-linux-gnu -target-cpu corei7 -Rpass-analysis=stack-frame-layout -o /dev/null -O0 -debug-info-kind=constructor -dwarf-version=5 -debugger-tuning=gdb 2>&1 | FileCheck %s --check-prefix=O0-DEBUG |
| 10 | +// RUN: %clang_cc1 %s -emit-codegen-only -triple x86_64-unknown-linux-gnu -target-cpu corei7 -funwind-tables=2 -O3 -Rpass-analysis=stack-frame-layout -debug-info-kind=constructor -dwarf-version=5 -debugger-tuning=gdb -opt-record-file %t/stack-layout-remark.c.yml -opt-record-passes stack-frame-layout 2>&1 | FileCheck %s --check-prefix=O3-DEBUG |
| 11 | +// RUN: cat %t/stack-layout-remark.c.yml | FileCheck %s --check-prefix=YAML |
| 12 | + |
| 13 | +#define NULL (void*)0 |
| 14 | + |
| 15 | +extern void* allocate(unsigned size); |
| 16 | +extern void deallocate(void* ptr); |
| 17 | +extern int work(char *ary, int size); |
| 18 | +extern int rand(void); |
| 19 | + |
| 20 | +// Test YAML Ouput |
| 21 | +// YAML: --- !Analysis |
| 22 | +// YAML: Pass: stack-frame-layout |
| 23 | +// YAML: Name: StackLayout |
| 24 | +// YAML: DebugLoc: { File: '{{.*}}stack-layout-remark.c', Line: [[# @LINE + 24]], |
| 25 | +// YAML: Function: foo |
| 26 | +// YAML: Args: |
| 27 | +// YAML: - Offset: '-40' |
| 28 | +// YAML: - Type: Variable |
| 29 | +// YAML: - Align: '16' |
| 30 | +// YAML: - Size: '32' |
| 31 | +// YAML: - DataLoc: 'a @ {{.*}}stack-layout-remark.c:[[# @LINE + 19]]' |
| 32 | +// YAML: - DataLoc: 'f @ {{.*}}stack-layout-remark.c:[[# @LINE + 21]]' |
| 33 | + |
| 34 | +// O0-NODEBUG: Function: foo |
| 35 | +// O0-NODEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32 |
| 36 | +// O0-NODEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32 |
| 37 | +// |
| 38 | +// O0-DEBUG: Function: foo |
| 39 | +// O0-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32 |
| 40 | +// O0-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]] |
| 41 | +// O0-DEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32 |
| 42 | +// O0-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 11]] |
| 43 | + |
| 44 | +// O3-DEBUG: Function: foo |
| 45 | +// O3-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32 |
| 46 | +// O3-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 4]] |
| 47 | +// O3-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 6]] |
| 48 | +void foo() { |
| 49 | + { |
| 50 | + char a[32] = {0}; |
| 51 | + work(a, sizeof(a)); |
| 52 | + } |
| 53 | + char f[32] = {0}; |
| 54 | + work(f, sizeof(f)); |
| 55 | +} |
| 56 | +// O0-NODEBUG: Function: bar |
| 57 | +// O0-NODEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32 |
| 58 | +// O0-NODEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32 |
| 59 | + |
| 60 | +// O0-DEBUG: Function: bar |
| 61 | +// O0-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32 |
| 62 | +// O0-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]] |
| 63 | +// O0-DEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32 |
| 64 | +// O0-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]] |
| 65 | + |
| 66 | +// O3-DEBUG: Function: bar |
| 67 | +// O3-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 16, Size: 32 |
| 68 | +// O3-DEBUG-NEXT: f @ {{.*}}stack-layout-remark.c:[[# @LINE + 4]] |
| 69 | +// O3-DEBUG-NEXT: Offset: [SP-72], Type: Variable, Align: 16, Size: 32 |
| 70 | +// O3-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 4]] |
| 71 | +void bar() { |
| 72 | + char f[32] = {0}; |
| 73 | + { |
| 74 | + char a[32] = {0}; |
| 75 | + work(a, sizeof(a)); |
| 76 | + } |
| 77 | + work(f, sizeof(f)); |
| 78 | +} |
| 79 | + |
| 80 | +struct Array { |
| 81 | + int *data; |
| 82 | + int size; |
| 83 | +}; |
| 84 | + |
| 85 | +struct Result { |
| 86 | + struct Array *data; |
| 87 | + int sum; |
| 88 | +}; |
| 89 | + |
| 90 | +// O0-NODEBUG: Function: cleanup_array |
| 91 | +// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8 |
| 92 | + |
| 93 | +// O0-DEBUG: Function: cleanup_array |
| 94 | +// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8 |
| 95 | +// O0-DEBUG-NEXT: a @ {{.*}}stack-layout-remark.c:[[# @LINE + 5]] |
| 96 | + |
| 97 | +// O3-DEBUG: Function: cleanup_array |
| 98 | +// O3-DEBUG: Function: cleanup_result |
| 99 | +// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8 |
| 100 | +void cleanup_array(struct Array *a) { |
| 101 | + if (!a) |
| 102 | + return; |
| 103 | + if (!a->data) |
| 104 | + return; |
| 105 | + deallocate(a->data); |
| 106 | +} |
| 107 | + |
| 108 | +// O0-NODEBUG: Function: cleanup_result |
| 109 | +// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8 |
| 110 | + |
| 111 | +// O0-DEBUG: Function: cleanup_result |
| 112 | +// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8 |
| 113 | +// O0-DEBUG-NEXT: res @ {{.*}}stack-layout-remark.c:[[# @LINE + 1]] |
| 114 | +void cleanup_result(struct Result *res) { |
| 115 | + if (!res) |
| 116 | + return; |
| 117 | + if (!res->data) |
| 118 | + return; |
| 119 | + cleanup_array(res->data); |
| 120 | + deallocate(res->data); |
| 121 | +} |
| 122 | + |
| 123 | +extern void use_dot_vector(struct Array *data); |
| 124 | + |
| 125 | +// O0-NODEBUG: Function: do_work |
| 126 | +// O0-NODEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4 |
| 127 | +// O0-NODEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8 |
| 128 | +// O0-NODEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8 |
| 129 | +// O0-NODEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8 |
| 130 | +// O0-NODEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4 |
| 131 | +// O0-NODEBUG-NEXT: Offset: [SP-48], Type: Variable, Align: 8, Size: 8 |
| 132 | +// O0-NODEBUG-NEXT: Offset: [SP-52], Type: Variable, Align: 4, Size: 4 |
| 133 | +// O0-NODEBUG-NEXT: Offset: [SP-56], Type: Variable, Align: 4, Size: 4 |
| 134 | + |
| 135 | +// O0-DEBUG: Function: do_work |
| 136 | +// O0-DEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4 |
| 137 | +// O0-DEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8 |
| 138 | +// O0-DEBUG-NEXT: A @ {{.*}}stack-layout-remark.c:[[# @LINE + 20]] |
| 139 | +// O0-DEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8 |
| 140 | +// O0-DEBUG-NEXT: B @ {{.*}}stack-layout-remark.c:[[# @LINE + 18]] |
| 141 | +// O0-DEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8 |
| 142 | +// O0-DEBUG-NEXT: out @ {{.*}}stack-layout-remark.c:[[# @LINE + 16]] |
| 143 | +// O0-DEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4 |
| 144 | +// O0-DEBUG-NEXT: len @ {{.*}}stack-layout-remark.c:[[# @LINE + 19]] |
| 145 | +// O0-DEBUG-NEXT: Offset: [SP-48], Type: Variable, Align: 8, Size: 8 |
| 146 | +// O0-DEBUG-NEXT: AB @ {{.*}}stack-layout-remark.c:[[# @LINE + 18]] |
| 147 | +// O0-DEBUG-NEXT: Offset: [SP-52], Type: Variable, Align: 4, Size: 4 |
| 148 | +// O0-DEBUG-NEXT: sum @ {{.*}}stack-layout-remark.c:[[# @LINE + 32]] |
| 149 | +// O0-DEBUG-NEXT: Offset: [SP-56], Type: Variable, Align: 4, Size: 4 |
| 150 | +// O0-DEBUG-NEXT: i @ {{.*}}stack-layout-remark.c:[[# @LINE + 31]] |
| 151 | + |
| 152 | +// O3-DEBUG: Function: do_work |
| 153 | +// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8 |
| 154 | +// O3-DEBUG-NEXT: Offset: [SP-16], Type: Spill, Align: 8, Size: 8 |
| 155 | +// O3-DEBUG-NEXT: Offset: [SP-24], Type: Spill, Align: 16, Size: 8 |
| 156 | +// O3-DEBUG-NEXT: Offset: [SP-32], Type: Spill, Align: 8, Size: 8 |
| 157 | +// O3-DEBUG-NEXT: Offset: [SP-40], Type: Spill, Align: 16, Size: 8 |
| 158 | +int do_work(struct Array *A, struct Array *B, struct Result *out) { |
| 159 | + if (!A || !B) |
| 160 | + return -1; |
| 161 | + if (A->size != B->size) |
| 162 | + return -1; |
| 163 | + const int len = A->size; |
| 164 | + struct Array *AB; |
| 165 | + if (out->data == NULL) { |
| 166 | + AB = (struct Array *)allocate(sizeof(struct Array)); |
| 167 | + AB->data = NULL; |
| 168 | + AB->size = 0; |
| 169 | + out->data = AB; |
| 170 | + } else { |
| 171 | + AB = out->data; |
| 172 | + } |
| 173 | + |
| 174 | + if (AB->data) |
| 175 | + deallocate(AB->data); |
| 176 | + |
| 177 | + AB->data = (int *)allocate(len * sizeof(int)); |
| 178 | + AB->size = len; |
| 179 | + |
| 180 | + int sum = 0; |
| 181 | + for (int i = 0; i < len; ++i) { |
| 182 | + AB->data[i] = A->data[i] * B->data[i]; |
| 183 | + sum += AB->data[i]; |
| 184 | + } |
| 185 | + return sum; |
| 186 | +} |
| 187 | + |
| 188 | +// O0-NODEBUG: Function: gen_array |
| 189 | +// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8 |
| 190 | +// O0-NODEBUG-NEXT: Offset: [SP-12], Type: Variable, Align: 4, Size: 4 |
| 191 | +// O0-NODEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8 |
| 192 | +// O0-NODEBUG-NEXT: Offset: [SP-28], Type: Variable, Align: 4, Size: 4 |
| 193 | + |
| 194 | +// O0-DEBUG: Function: gen_array |
| 195 | +// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 8, Size: 8 |
| 196 | +// O0-DEBUG-NEXT: Offset: [SP-12], Type: Variable, Align: 4, Size: 4 |
| 197 | +// O0-DEBUG-NEXT: size @ {{.*}}stack-layout-remark.c:[[# @LINE + 10]] |
| 198 | +// O0-DEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8 |
| 199 | +// O0-DEBUG-NEXT: res @ {{.*}}stack-layout-remark.c:[[# @LINE + 11]] |
| 200 | +// O0-DEBUG-NEXT: Offset: [SP-28], Type: Variable, Align: 4, Size: 4 |
| 201 | +// O0-DEBUG-NEXT: i @ {{.*}}stack-layout-remark.c:[[# @LINE + 13]] |
| 202 | + |
| 203 | +// O3-DEBUG: Function: gen_array |
| 204 | +// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8 |
| 205 | +// O3-DEBUG-NEXT: Offset: [SP-16], Type: Spill, Align: 8, Size: 8 |
| 206 | +// O3-DEBUG-NEXT: Offset: [SP-24], Type: Spill, Align: 16, Size: 8 |
| 207 | +struct Array *gen_array(int size) { |
| 208 | + if (size < 0) |
| 209 | + return NULL; |
| 210 | + struct Array *res = (struct Array *)allocate(sizeof(struct Array)); |
| 211 | + res->size = size; |
| 212 | + res->data = (int *)allocate(size * sizeof(int)); |
| 213 | + |
| 214 | + for (int i = 0; i < size; ++i) { |
| 215 | + res->data[i] = rand(); |
| 216 | + } |
| 217 | + |
| 218 | + return res; |
| 219 | +} |
| 220 | + |
| 221 | +// YAML: --- !Analysis |
| 222 | +// YAML: Pass: stack-frame-layout |
| 223 | +// YAML: Name: StackLayout |
| 224 | +// YAML: DebugLoc: { File: '{{.*}}stack-layout-remark.c', Line: [[# @LINE + 59]] |
| 225 | +// YAML: Function: caller |
| 226 | +// YAML: Args: |
| 227 | +// YAML: - Offset: '-8' |
| 228 | +// YAML: - Type: Spill |
| 229 | +// YAML: - Align: '16' |
| 230 | +// YAML: - Size: '8' |
| 231 | +// YAML: - Offset: '-16' |
| 232 | +// YAML: - Type: Spill |
| 233 | +// YAML: - Align: '8' |
| 234 | +// YAML: - Size: '8' |
| 235 | +// YAML: - Offset: '-24' |
| 236 | +// YAML: - Type: Spill |
| 237 | +// YAML: - Align: '16' |
| 238 | +// YAML: - Size: '8' |
| 239 | +// YAML: - Offset: '-32' |
| 240 | +// YAML: - Type: Spill |
| 241 | +// YAML: - Align: '8' |
| 242 | +// YAML: - Size: '8' |
| 243 | +// YAML: - Offset: '-40' |
| 244 | +// YAML: - Type: Spill |
| 245 | +// YAML: - Align: '16' |
| 246 | +// YAML: - Size: '8' |
| 247 | +// YAML: - Offset: '-48' |
| 248 | +// YAML: - Type: Spill |
| 249 | +// YAML: - Align: '8' |
| 250 | +// YAML: - Size: '8' |
| 251 | + |
| 252 | +// O0-NODEBUG: Function: caller |
| 253 | +// O0-NODEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4 |
| 254 | +// O0-NODEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 4, Size: 4 |
| 255 | +// O0-NODEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8 |
| 256 | +// O0-NODEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8 |
| 257 | +// O0-NODEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8 |
| 258 | +// O0-NODEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4 |
| 259 | +// O0-NODEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 4, Size: 4 |
| 260 | + |
| 261 | +// O0-DEBUG: Function: caller |
| 262 | +// O0-DEBUG-NEXT: Offset: [SP-4], Type: Variable, Align: 4, Size: 4 |
| 263 | +// O0-DEBUG-NEXT: Offset: [SP-8], Type: Variable, Align: 4, Size: 4 |
| 264 | +// O0-DEBUG-NEXT: size @ {{.*}}stack-layout-remark.c:[[# @LINE + 20]] |
| 265 | +// O0-DEBUG-NEXT: Offset: [SP-16], Type: Variable, Align: 8, Size: 8 |
| 266 | +// O0-DEBUG-NEXT: A @ {{.*}}stack-layout-remark.c:[[# @LINE + 19]] |
| 267 | +// O0-DEBUG-NEXT: Offset: [SP-24], Type: Variable, Align: 8, Size: 8 |
| 268 | +// O0-DEBUG-NEXT: B @ {{.*}}stack-layout-remark.c:[[# @LINE + 18]] |
| 269 | +// O0-DEBUG-NEXT: Offset: [SP-32], Type: Variable, Align: 8, Size: 8 |
| 270 | +// O0-DEBUG-NEXT: res @ {{.*}}stack-layout-remark.c:[[# @LINE + 17]] |
| 271 | +// O0-DEBUG-NEXT: Offset: [SP-36], Type: Variable, Align: 4, Size: 4 |
| 272 | +// O0-DEBUG-NEXT: ret @ {{.*}}stack-layout-remark.c:[[# @LINE + 16]] |
| 273 | +// O0-DEBUG-NEXT: Offset: [SP-40], Type: Variable, Align: 4, Size: 4 |
| 274 | +// O0-DEBUG-NEXT: err @ {{.*}}stack-layout-remark.c:[[# @LINE + 16]] |
| 275 | + |
| 276 | +// O3-DEBUG: Function: caller |
| 277 | +// O3-DEBUG-NEXT: Offset: [SP-8], Type: Spill, Align: 16, Size: 8 |
| 278 | +// O3-DEBUG-NEXT: Offset: [SP-16], Type: Spill, Align: 8, Size: 8 |
| 279 | +// O3-DEBUG-NEXT: Offset: [SP-24], Type: Spill, Align: 16, Size: 8 |
| 280 | +// O3-DEBUG-NEXT: Offset: [SP-32], Type: Spill, Align: 8, Size: 8 |
| 281 | +// O3-DEBUG-NEXT: Offset: [SP-40], Type: Spill, Align: 16, Size: 8 |
| 282 | +// O3-DEBUG-NEXT: Offset: [SP-48], Type: Spill, Align: 8, Size: 8 |
| 283 | +int caller() { |
| 284 | + const int size = 100; |
| 285 | + struct Array *A = gen_array(size); |
| 286 | + struct Array *B = gen_array(size); |
| 287 | + struct Result *res = (struct Result *)allocate(sizeof(struct Result)); |
| 288 | + int ret = -1; |
| 289 | + |
| 290 | + int err = do_work(A, B, res); |
| 291 | + if (err == -1) { |
| 292 | + goto cleanup; |
| 293 | + } |
| 294 | + |
| 295 | + ret = res->sum; |
| 296 | + if (ret == -1) |
| 297 | + return caller(); |
| 298 | + |
| 299 | + use_dot_vector(res->data); |
| 300 | + |
| 301 | +cleanup: |
| 302 | + cleanup_array(A); |
| 303 | + cleanup_array(B); |
| 304 | + cleanup_result(res); |
| 305 | + |
| 306 | + return ret; |
| 307 | +} |
| 308 | + |
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