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/// Test that llvm-cov supports a fake gcov 4.2 format used before clang 11.
// RUN: rm -rf %t && mkdir %t && cd %t
// RUN: echo -e '\n\n\n\n\n\n\n\n\n' > test.cpp && echo > test.h
// RUN: llvm-cov gcov test. --gcno=%S/Inputs/gcov-fake-4.2.gcno --gcda=%S/Inputs/gcov-fake-4.2.gcda | FileCheck %s
// RUN: FileCheck %s --check-prefix=C < test.cpp.gcov
// RUN: FileCheck %s --check-prefix=H < test.h.gcov
// CHECK: File 'test.cpp'
// CHECK-NEXT: Lines executed:84.21% of 38
// CHECK-NEXT: Creating 'test.cpp.gcov'
// CHECK-EMPTY:
// CHECK-NEXT: File 'test.h'
// CHECK-NEXT: Lines executed:100.00% of 1
// CHECK-NEXT: Creating 'test.h.gcov'
// CHECK-EMPTY:
// C: -: 0:Source:test.cpp
// C-NEXT: -: 0:Graph:{{.*}}gcov-fake-4.2.gcno
// C-NEXT: -: 0:Data:{{.*}}gcov-fake-4.2.gcda
/// `Runs` is stored in GCOV_TAG_OBJECT_SUMMARY with a length of 9.
// C-NEXT: -: 0:Runs:2
// C-NEXT: -: 0:Programs:1
// C-NEXT: -: 1:
// C-NEXT: -: 2:
// C-NEXT: -: 3:
// C-NEXT: -: 4:
// C-NEXT: -: 5:
// C-NEXT: -: 6:
// C-NEXT: -: 7:
// C-NEXT: -: 8:
// C-NEXT: -: 9:
// C-NEXT:8589934592: 10:
// H: -: 0:Source:test.h
// H-NEXT: -: 0:Graph:{{.*}}gcov-fake-4.2.gcno
// H-NEXT: -: 0:Data:{{.*}}gcov-fake-4.2.gcda
// H-NEXT: -: 0:Runs:2
// H-NEXT: -: 0:Programs:1
// H-NEXT: 4: 1:
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