1 /// We support coverage versions 4.2 and 4.7. 2 /// 4.7 (default, compatible with gcov 7) enables cfg_checksum. 3 // RUN: %clang_cc1 -emit-llvm -disable-red-zone -femit-coverage-data -coverage-version='402*' %s -o - | \ 4 // RUN: FileCheck --check-prefixes=CHECK,402 %s 5 // RUN: %clang_cc1 -emit-llvm -disable-red-zone -femit-coverage-data -coverage-version='407*' %s -o - | \ 6 // RUN: FileCheck --check-prefixes=CHECK,407 %s 7 // RUN: %clang_cc1 -emit-llvm -disable-red-zone -femit-coverage-data %s -o - | \ 8 // RUN: FileCheck --check-prefixes=CHECK,407 %s 9 10 // RUN: %clang_cc1 -emit-llvm -disable-red-zone -femit-coverage-data -coverage-notes-file=aaa.gcno -coverage-data-file=bbb.gcda -dwarf-column-info -debug-info-kind=limited -dwarf-version=4 %s -o - | FileCheck %s --check-prefix GCOV_FILE_INFO 11 12 // RUN: %clang_cc1 -emit-llvm-bc -o /dev/null -fexperimental-new-pass-manager -fdebug-pass-manager -femit-coverage-data %s 2>&1 | FileCheck --check-prefix=NEWPM %s 13 // RUN: %clang_cc1 -emit-llvm-bc -o /dev/null -fexperimental-new-pass-manager -fdebug-pass-manager -femit-coverage-data -O3 %s 2>&1 | FileCheck --check-prefix=NEWPM-O3 %s 14 15 // NEWPM-NOT: Running pass 16 // NEWPM: Running pass: GCOVProfilerPass 17 18 // NEWPM-O3-NOT: Running pass 19 // NEWPM-O3: Running pass: ForceFunctionAttrsPass 20 // NEWPM-O3: Running pass: GCOVProfilerPass 21 22 23 int test1(int a) { 24 switch (a % 2) { 25 case 0: 26 ++a; 27 case 1: 28 a /= 2; 29 } 30 return a; 31 } 32 33 int test2(int b) { 34 return b * 2; 35 } 36 37 // 402: private unnamed_addr constant [5 x i8] c"*204\00" 38 // 407: private unnamed_addr constant [5 x i8] c"*704\00" 39 40 // CHECK: @__llvm_internal_gcov_emit_function_args.0 = internal unnamed_addr constant [2 x %0] 41 // CHECK-SAME: [%0 zeroinitializer, %0 { i32 1, i32 0, i32 0 }] 42 43 // Check that the noredzone flag is set on the generated functions. 44 45 // CHECK: void @__llvm_gcov_writeout() unnamed_addr [[NRZ:#[0-9]+]] 46 // CHECK: void @__llvm_gcov_flush() unnamed_addr [[NRZ]] 47 // CHECK: void @__llvm_gcov_init() unnamed_addr [[NRZ]] 48 49 // CHECK: attributes [[NRZ]] = { {{.*}}noredzone{{.*}} } 50 51 // GCOV_FILE_INFO: !llvm.gcov = !{![[GCOV:[0-9]+]]} 52 // GCOV_FILE_INFO: ![[GCOV]] = !{!"aaa.gcno", !"bbb.gcda", !{{[0-9]+}}} 53