llvm-project

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// RUN: %clang_profgen -mllvm -enable-value-profiling -O2 -o %t %s
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// RUN: env LLVM_PROFILE_FILE=%t.profraw %run %t
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// RUN: llvm-profdata merge -o %t.profdata %t.profraw
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// RUN: llvm-profdata show --all-functions -ic-targets  %t.profdata > %t.out
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-1 < %t.out
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-2 < %t.out
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-3 < %t.out
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-4 < %t.out
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-5 < %t.out
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// RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-6 < %t.out
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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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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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void callee1() {}
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void callee2() {}
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void caller_without_value_site1() {}
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void caller_with_value_site_never_called1() {}
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void caller_with_vp1() {}
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void caller_with_value_site_never_called2() {}
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void caller_without_value_site2() {}
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void caller_with_vp2() {}
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void (*callee1Ptr)();
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void (*callee2Ptr)();
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void __attribute__ ((noinline)) setFunctionPointers () {
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  callee1Ptr = callee1;
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  callee2Ptr = callee2;
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}
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int main(int argc, const char *argv[]) {
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  unsigned S, NS = 10, V;
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  const __llvm_profile_data *Data, *DataEnd;
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  setFunctionPointers();
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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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    if (func == caller_without_value_site1 ||
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        func == caller_without_value_site2 ||
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        func == callee1 || func == callee2 || func == main)
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      continue;
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    __llvm_profile_set_num_value_sites((__llvm_profile_data *)Data,
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                                       0 /*IPVK_IndirectCallTarget */, 10);
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    if (func == caller_with_value_site_never_called1 ||
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        func == caller_with_value_site_never_called2)
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      continue;
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    for (S = 0; S < NS; S++) {
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      unsigned C;
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      for (C = 0; C < S + 1; C++) {
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        __llvm_profile_instrument_target((uint64_t)callee1Ptr, (void *)Data, S);
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        if (C % 2 == 0)
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          __llvm_profile_instrument_target((uint64_t)callee2Ptr, (void *)Data, S);
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      }
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    }
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  }
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}
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// CHECK:         Counters:
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// CHECK-1-LABEL:   caller_with_value_site_never_called2:
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// CHECK-1-NEXT:    Hash: 0x0000000000000000
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// CHECK-1-NEXT:    Counters:
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// CHECK-1-NEXT:    Function count
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// CHECK-1-NEXT:    Indirect Call Site Count: 10
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// CHECK-1-NEXT:    Indirect Target Results: 
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// CHECK-2-LABEL:   caller_with_vp2:
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// CHECK-2-NEXT:    Hash: 0x0000000000000000
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// CHECK-2-NEXT:    Counters:
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// CHECK-2-NEXT:    Function count:
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// CHECK-2-NEXT:    Indirect Call Site Count: 10
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// CHECK-2-NEXT:    Indirect Target Results: 
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// CHECK-2-NEXT:	[ 0, callee1, 1 ]
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// CHECK-2-NEXT:	[ 0, callee2, 1 ]
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// CHECK-2-NEXT:	[ 1, callee1, 2 ]
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// CHECK-2-NEXT:	[ 1, callee2, 1 ]
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// CHECK-2-NEXT:	[ 2, callee1, 3 ]
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// CHECK-2-NEXT:	[ 2, callee2, 2 ]
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// CHECK-2-NEXT:	[ 3, callee1, 4 ]
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// CHECK-2-NEXT:	[ 3, callee2, 2 ]
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// CHECK-2-NEXT:	[ 4, callee1, 5 ]
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// CHECK-2-NEXT:	[ 4, callee2, 3 ]
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// CHECK-2-NEXT:	[ 5, callee1, 6 ]
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// CHECK-2-NEXT:	[ 5, callee2, 3 ]
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// CHECK-2-NEXT:	[ 6, callee1, 7 ]
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// CHECK-2-NEXT:	[ 6, callee2, 4 ]
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// CHECK-2-NEXT:	[ 7, callee1, 8 ]
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// CHECK-2-NEXT:	[ 7, callee2, 4 ]
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// CHECK-2-NEXT:	[ 8, callee1, 9 ]
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// CHECK-2-NEXT:	[ 8, callee2, 5 ]
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// CHECK-2-NEXT:	[ 9, callee1, 10 ]
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// CHECK-2-NEXT:	[ 9, callee2, 5 ]
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// CHECK-3-LABEL:   caller_with_vp1:
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// CHECK-3-NEXT:    Hash: 0x0000000000000000
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// CHECK-3-NEXT:    Counters:
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// CHECK-3-NEXT:    Function count
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// CHECK-3-NEXT:    Indirect Call Site Count: 10
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// CHECK-3-NEXT:    Indirect Target Results: 
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// CHECK-3-NEXT:	[ 0, callee1, 1 ]
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// CHECK-3-NEXT:	[ 0, callee2, 1 ]
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// CHECK-3-NEXT:	[ 1, callee1, 2 ]
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// CHECK-3-NEXT:	[ 1, callee2, 1 ]
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// CHECK-3-NEXT:	[ 2, callee1, 3 ]
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// CHECK-3-NEXT:	[ 2, callee2, 2 ]
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// CHECK-3-NEXT:	[ 3, callee1, 4 ]
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// CHECK-3-NEXT:	[ 3, callee2, 2 ]
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// CHECK-3-NEXT:	[ 4, callee1, 5 ]
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// CHECK-3-NEXT:	[ 4, callee2, 3 ]
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// CHECK-3-NEXT:	[ 5, callee1, 6 ]
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// CHECK-3-NEXT:	[ 5, callee2, 3 ]
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// CHECK-3-NEXT:	[ 6, callee1, 7 ]
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// CHECK-3-NEXT:	[ 6, callee2, 4 ]
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// CHECK-3-NEXT:	[ 7, callee1, 8 ]
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// CHECK-3-NEXT:	[ 7, callee2, 4 ]
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// CHECK-3-NEXT:	[ 8, callee1, 9 ]
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// CHECK-3-NEXT:	[ 8, callee2, 5 ]
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// CHECK-3-NEXT:	[ 9, callee1, 10 ]
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// CHECK-3-NEXT:	[ 9, callee2, 5 ]
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// CHECK-4-LABEL:   caller_with_value_site_never_called1:
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// CHECK-4-NEXT:    Hash: 0x0000000000000000
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// CHECK-4-NEXT:    Counters:
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// CHECK-4-NEXT:    Function count:
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// CHECK-4-NEXT:    Indirect Call Site Count: 10
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// CHECK-4-NEXT:    Indirect Target Results: 
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// CHECK-5-LABEL:   caller_without_value_site2:
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// CHECK-5-NEXT:    Hash: 0x0000000000000000
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// CHECK-5-NEXT:    Counters:
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// CHECK-5-NEXT:    Function count:
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// CHECK-5-NEXT:    Indirect Call Site Count: 0
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// CHECK-5-NEXT:    Indirect Target Results: 
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// CHECK-6-LABEL:   caller_without_value_site1:
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// CHECK-6-NEXT:    Hash: 0x0000000000000000
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// CHECK-6-NEXT:    Counters:
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// CHECK-6-NEXT:    Function count:
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// CHECK-6-NEXT:    Indirect Call Site Count: 0
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// CHECK-6-NEXT:    Indirect Target Results: 
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