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llvm-project
/compiler-rt
/test
/profile
/
instrprof-value-prof.c 
228 строк · 9.5 Кб
1
// RUN: %clang_profgen -mllvm -enable-value-profiling -mllvm -vp-static-alloc=false  -O2 -o %t %s
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: env LLVM_PROFILE_FILE=%t-2.profraw %run %t DO_NOT_INSTRUMENT
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// RUN: llvm-profdata merge -o %t.profdata %t.profraw
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// RUN: llvm-profdata merge -o %t-2.profdata %t-2.profraw
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// RUN: llvm-profdata merge -o %t-merged.profdata %t.profraw %t-2.profdata
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-2.profdata | FileCheck  %s -check-prefix=NO-VALUE
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// RUN: llvm-profdata show --all-functions -ic-targets  %t.profdata | FileCheck  %s
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-merged.profdata | FileCheck  %s
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//
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// RUN: env LLVM_PROFILE_FILE=%t-3.profraw LLVM_VP_BUFFER_SIZE=1 %run %t
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// RUN: env LLVM_PROFILE_FILE=%t-4.profraw LLVM_VP_BUFFER_SIZE=8 %run %t
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// RUN: env LLVM_PROFILE_FILE=%t-5.profraw LLVM_VP_BUFFER_SIZE=128 %run %t
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// RUN: env LLVM_PROFILE_FILE=%t-6.profraw LLVM_VP_BUFFER_SIZE=1024 %run %t
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// RUN: env LLVM_PROFILE_FILE=%t-7.profraw LLVM_VP_BUFFER_SIZE=102400 %run %t
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// RUN: llvm-profdata merge -o %t-3.profdata %t-3.profraw
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// RUN: llvm-profdata merge -o %t-4.profdata %t-4.profraw
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// RUN: llvm-profdata merge -o %t-5.profdata %t-5.profraw
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// RUN: llvm-profdata merge -o %t-6.profdata %t-6.profraw
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// RUN: llvm-profdata merge -o %t-7.profdata %t-7.profraw
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-3.profdata | FileCheck  %s
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-4.profdata | FileCheck  %s
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-5.profdata | FileCheck  %s
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-6.profdata | FileCheck  %s
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// RUN: llvm-profdata show --all-functions -ic-targets  %t-7.profdata | FileCheck  %s
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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typedef struct __llvm_profile_data __llvm_profile_data;
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const __llvm_profile_data *__llvm_profile_begin_data(void);
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const __llvm_profile_data *__llvm_profile_end_data(void);
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void __llvm_profile_set_num_value_sites(__llvm_profile_data *Data,
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                                        uint32_t ValueKind,
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                                        uint16_t NumValueSites);
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__llvm_profile_data *
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__llvm_profile_iterate_data(const __llvm_profile_data *Data);
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void *__llvm_get_function_addr(const __llvm_profile_data *Data);
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void __llvm_profile_instrument_target(uint64_t TargetValue, void *Data,
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                                      uint32_t CounterIndex);
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#define DEF_FUNC(x)                                                            \
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  void x() {}
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#define DEF_2_FUNCS(x) DEF_FUNC(x##_1) DEF_FUNC(x##_2)
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#define DEF_4_FUNCS(x) DEF_2_FUNCS(x##_1) DEF_2_FUNCS(x##_2)
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#define DEF_8_FUNCS(x) DEF_4_FUNCS(x##_1) DEF_4_FUNCS(x##_2)
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#define DEF_16_FUNCS(x) DEF_8_FUNCS(x##_1) DEF_8_FUNCS(x##_2)
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#define DEF_32_FUNCS(x) DEF_16_FUNCS(x##_1) DEF_16_FUNCS(x##_2)
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#define DEF_64_FUNCS(x) DEF_32_FUNCS(x##_1) DEF_32_FUNCS(x##_2)
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#define DEF_128_FUNCS(x) DEF_64_FUNCS(x##_1) DEF_64_FUNCS(x##_2)
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#define FUNC_ADDR(x) &x,
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#define FUNC_2_ADDRS(x) FUNC_ADDR(x##_1) FUNC_ADDR(x##_2)
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#define FUNC_4_ADDRS(x) FUNC_2_ADDRS(x##_1) FUNC_2_ADDRS(x##_2)
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#define FUNC_8_ADDRS(x) FUNC_4_ADDRS(x##_1) FUNC_4_ADDRS(x##_2)
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#define FUNC_16_ADDRS(x) FUNC_8_ADDRS(x##_1) FUNC_8_ADDRS(x##_2)
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#define FUNC_32_ADDRS(x) FUNC_16_ADDRS(x##_1) FUNC_16_ADDRS(x##_2)
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#define FUNC_64_ADDRS(x) FUNC_32_ADDRS(x##_1) FUNC_32_ADDRS(x##_2)
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#define FUNC_128_ADDRS(x) FUNC_64_ADDRS(x##_1) FUNC_64_ADDRS(x##_2)
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DEF_8_FUNCS(callee)
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DEF_128_FUNCS(caller)
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void *CallerAddrs[] = {FUNC_128_ADDRS(caller)};
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void *CalleeAddrs[] = {FUNC_8_ADDRS(callee)};
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typedef struct CallerInfo {
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    void *CallerAddr;
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    uint32_t NS; /* Number value sites. */
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} CallerInfo;
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CallerInfo CallerInfos[128];
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int cmpaddr(const void *p1, const void *p2) {
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  CallerInfo *addr1 = (CallerInfo *)p1;
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  CallerInfo *addr2 = (CallerInfo *)p2;
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  return (intptr_t)addr2->CallerAddr - (intptr_t)addr1->CallerAddr;
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}
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int main(int argc, const char *argv[]) {
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  unsigned S, NS = 0, I, V, doInstrument = 1;
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  const __llvm_profile_data *Data, *DataEnd;
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  if (argc >= 2 && !strcmp(argv[1], "DO_NOT_INSTRUMENT"))
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    doInstrument = 0;
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  for (I = 0; I < 128; I++) {
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     CallerInfos[I].CallerAddr = CallerAddrs[I];
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     CallerInfos[I].NS = I;
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  }
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  qsort(CallerInfos, sizeof(CallerInfos) / sizeof(CallerInfo), sizeof(CallerInfo),
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        cmpaddr);
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  /* We will synthesis value profile data for 128 callers functions declared.
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   * The number of value sites for each caller function is recorded in
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   * the NS field of the CallerInfo object. For each value site, the number of
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   * callee values is determined by the site index (modulo 8). The frequency
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   * of each callee target synthesized is equal to V + 1, in which V is the
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   * index of the target value for the callsite. */
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  Data = __llvm_profile_begin_data();
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  DataEnd = __llvm_profile_end_data();
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  for (; Data < DataEnd; Data = __llvm_profile_iterate_data(Data)) {
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    void *func = __llvm_get_function_addr(Data);
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    CallerInfo Key, *Res;
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    Key.CallerAddr = func;
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    Res = (CallerInfo *) bsearch(&Key, CallerInfos, sizeof(CallerInfos) / sizeof(CallerInfo),
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                                 sizeof(CallerInfo), cmpaddr);
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    if (Res) {
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      NS = Res->NS;
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      __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data,
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                                         0 /*IPVK_IndirectCallTarget */, NS);
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      if (!doInstrument) {
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        continue;
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      }
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      for (S = 0; S < NS; S++) {
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        for (V = 0; V < S % 8; V++) {
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          unsigned C;
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          for (C = 0; C < V + 1; C++)
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            __llvm_profile_instrument_target((uint64_t)CalleeAddrs[V],
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                                             (void *)Data, S);
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        }
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      }
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    }
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  }
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}
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// NO-VALUE: Indirect Call Site Count: 127
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// NO-VALUE-NEXT: Indirect Target Results:
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// CHECK-LABEL: caller_1_1_1_1_2_2_1:
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// CHECK: Indirect Call Site Count: 6
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// CHECK-NEXT: Indirect Target Results:
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// CHECK-NEXT: [ 1, callee_1_1_1, 1 ]
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// CHECK-NEXT: [ 2, callee_1_1_2, 2 ]
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// CHECK-NEXT: [ 2, callee_1_1_1, 1 ]
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// CHECK-NEXT: [ 3, callee_1_2_1, 3 ]
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// CHECK-NEXT: [ 3, callee_1_1_2, 2 ]
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// CHECK-NEXT: [ 3, callee_1_1_1, 1 ]
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// CHECK-NEXT: [ 4, callee_1_2_2, 4 ]
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// CHECK-NEXT: [ 4, callee_1_2_1, 3 ]
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// CHECK-NEXT: [ 4, callee_1_1_2, 2 ]
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// CHECK-NEXT: [ 4, callee_1_1_1, 1 ]
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// CHECK-NEXT: [ 5, callee_2_1_1, 5 ]
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// CHECK-NEXT: [ 5, callee_1_2_2, 4 ]
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// CHECK-NEXT: [ 5, callee_1_2_1, 3 ]
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// CHECK-NEXT: [ 5, callee_1_1_2, 2 ]
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// CHECK-NEXT: [ 5, callee_1_1_1, 1 ]
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// CHECK-LABEL: caller_2_2_2_2_2_2_2:
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// CHECK: Indirect Call Site Count: 127
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// CHECK-NEXT: Indirect Target Results:
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// CHECK-NEXT:  [ 1, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 2, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 2, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 3, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 3, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 3, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 4, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 4, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 4, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 4, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 5, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 5, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 5, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 5, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 5, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 6, callee_2_1_2, 6 ]
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// CHECK-NEXT:  [ 6, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 6, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 6, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 6, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 6, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 7, callee_2_2_1, 7 ]
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// CHECK-NEXT:  [ 7, callee_2_1_2, 6 ]
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// CHECK-NEXT:  [ 7, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 7, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 7, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 7, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 7, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 9, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 10, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 10, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 11, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 11, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 11, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 12, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 12, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 12, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 12, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 13, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 13, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 13, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 13, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 13, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 14, callee_2_1_2, 6 ]
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// CHECK-NEXT:  [ 14, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 14, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 14, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 14, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 14, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 15, callee_2_2_1, 7 ]
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// CHECK-NEXT:  [ 15, callee_2_1_2, 6 ]
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// CHECK-NEXT:  [ 15, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 15, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 15, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 15, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 15, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 17, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 18, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 18, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 19, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 19, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 19, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 20, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 20, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 20, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 20, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 21, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 21, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 21, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 21, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 21, callee_1_1_1, 1 ]
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// CHECK-NEXT:  [ 22, callee_2_1_2, 6 ]
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// CHECK-NEXT:  [ 22, callee_2_1_1, 5 ]
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// CHECK-NEXT:  [ 22, callee_1_2_2, 4 ]
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// CHECK-NEXT:  [ 22, callee_1_2_1, 3 ]
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// CHECK-NEXT:  [ 22, callee_1_1_2, 2 ]
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// CHECK-NEXT:  [ 22, callee_1_1_1, 1 ]
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