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From: "yangyibiao at outlook dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug gcov-profile/97923] New: [GCOV]Wrong code coverage for multiple expressions with Logical OR Operator at multiple lines Date: Fri, 20 Nov 2020 02:41:00 +0000 [thread overview] Message-ID: <bug-97923-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97923 Bug ID: 97923 Summary: [GCOV]Wrong code coverage for multiple expressions with Logical OR Operator at multiple lines Product: gcc Version: 10.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: gcov-profile Assignee: unassigned at gcc dot gnu.org Reporter: yangyibiao at outlook dot com CC: marxin at gcc dot gnu.org Target Milestone: --- $ cat test.c int foo(int c) { return ((c >= 'A' && c <= 'Z') || (c >= 'a' && c <= 'z') || (c >= '0' && c <= '0')); } int main() { foo(0); } $ gcc -O0 --coverage test.c; ./a.out; gcov test.c; cat test.c.gcov File 'test.c' Lines executed:80.00% of 5 Creating 'test.c.gcov' -: 0:Source:test.c -: 0:Graph:test.gcno -: 0:Data:test.gcda -: 0:Runs:1 1: 1:int foo(int c) -: 2:{ #####: 3: return ((c >= 'A' && c <= 'Z') 1*: 4: || (c >= 'a' && c <= 'z') 2*: 5: || (c >= '0' && c <= '0')); -: 6:} -: 7: 1: 8:int main() { foo(0); } ################################### Line 5 is wrongly marked as executed twice. When debug this program in debugger, Line 5 is only hit once. $ gcc --version; gcov --version gcc (GCC) 10.0.1 20200419 (experimental) Copyright (C) 2020 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. gcov (GCC) 10.0.1 20200419 (experimental) Copyright (C) 2020 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
next reply other threads:[~2020-11-20 2:41 UTC|newest] Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-11-20 2:41 yangyibiao at outlook dot com [this message] 2020-11-20 9:35 ` [Bug gcov-profile/97923] " marxin at gcc dot gnu.org 2022-09-08 7:49 ` yangyibiao at nju dot edu.cn 2022-09-08 9:42 ` marxin at gcc dot gnu.org 2022-09-08 11:13 ` yangyibiao at nju dot edu.cn 2023-03-01 2:07 ` yinyuefengyi at gmail dot com 2023-03-01 2:10 ` yinyuefengyi at gmail dot com
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