1 1.1 joerg // RUN: %clang_profgen -DCHECK_SYMBOLS -O3 -o %t.symbols %s 2 1.1 joerg // RUN: llvm-nm %t.symbols | FileCheck %s --check-prefix=CHECK-SYMBOLS 3 1.1 joerg // RUN: %clang_profgen -O3 -o %t %s 4 1.1 joerg // RUN: %run %t %t.profraw 5 1.1 joerg // RUN: llvm-profdata merge -o %t.profdata %t.profraw 6 1.1 joerg // RUN: %clang_profuse=%t.profdata -o - -S -emit-llvm %s | FileCheck %s 7 1.1 joerg 8 1.1 joerg #include <stdint.h> 9 1.1 joerg #include <stdlib.h> 10 1.1 joerg 11 1.1 joerg #ifndef CHECK_SYMBOLS 12 1.1 joerg #include <stdio.h> 13 1.1 joerg #endif 14 1.1 joerg 15 1.1 joerg int __llvm_profile_runtime = 0; 16 1.1 joerg uint64_t __llvm_profile_get_size_for_buffer(void); 17 1.1 joerg int __llvm_profile_write_buffer(char *); 18 1.1 joerg int write_buffer(uint64_t, const char *); 19 1.1 joerg int main(int argc, const char *argv[]) { 20 1.1.1.2 joerg // CHECK-LABEL: define {{.*}} @main( 21 1.1.1.2 joerg // CHECK: br i1 %{{.*}}, label %{{.*}}, label %{{.*}}, !prof ![[PD1:[0-9]+]] 22 1.1 joerg if (argc < 2) 23 1.1 joerg return 1; 24 1.1 joerg 25 1.1 joerg const uint64_t MaxSize = 10000; 26 1.1 joerg static char Buffer[MaxSize]; 27 1.1 joerg 28 1.1 joerg uint64_t Size = __llvm_profile_get_size_for_buffer(); 29 1.1 joerg if (Size > MaxSize) 30 1.1 joerg return 1; 31 1.1 joerg int Write = __llvm_profile_write_buffer(Buffer); 32 1.1 joerg if (__llvm_profile_write_buffer(Buffer)) 33 1.1 joerg return Write; 34 1.1 joerg 35 1.1 joerg #ifdef CHECK_SYMBOLS 36 1.1 joerg // Don't write it out. Since we're checking the symbols, we don't have libc 37 1.1 joerg // available. 38 1.1 joerg return 0; 39 1.1 joerg #else 40 1.1 joerg // Actually write it out so we can FileCheck the output. 41 1.1 joerg FILE *File = fopen(argv[1], "w"); 42 1.1 joerg if (!File) 43 1.1 joerg return 1; 44 1.1 joerg if (fwrite(Buffer, 1, Size, File) != Size) 45 1.1 joerg return 1; 46 1.1 joerg return fclose(File); 47 1.1 joerg #endif 48 1.1 joerg } 49 1.1.1.2 joerg // CHECK: ![[PD1]] = !{!"branch_weights", i32 1, i32 2} 50 1.1 joerg 51 1.1 joerg // CHECK-SYMBOLS-NOT: ___cxx_global_var_init 52 1.1 joerg // CHECK-SYMBOLS-NOT: ___llvm_profile_register_write_file_atexit 53 1.1 joerg // CHECK-SYMBOLS-NOT: ___llvm_profile_set_filename 54 1.1 joerg // CHECK-SYMBOLS-NOT: ___llvm_profile_write_file 55 1.1 joerg // CHECK-SYMBOLS-NOT: _fdopen 56 1.1 joerg // CHECK-SYMBOLS-NOT: _fopen 57 1.1 joerg // CHECK-SYMBOLS-NOT: _fwrite 58 1.1 joerg // CHECK-SYMBOLS-NOT: _getenv 59 1.1.1.2 joerg // CHECK-SYMBOLS-NOT: getenv 60 1.1 joerg // CHECK-SYMBOLS-NOT: _malloc 61 1.1.1.2 joerg // CHECK-SYMBOLS-NOT: malloc 62 1.1.1.2 joerg // CHECK-SYMBOLS-NOT: _calloc 63 1.1.1.2 joerg // CHECK-SYMBOLS-NOT: calloc 64 1.1.1.2 joerg // CHECK-SYMBOLS-NOT: _free 65 1.1.1.2 joerg // CHECK-SYMBOLS-NOT: free 66 1.1 joerg // CHECK-SYMBOLS-NOT: _open 67
Indexes created Sun Sep 21 14:09:52 GMT 2025