public inbox for gcc-bugs@sourceware.org help / color / mirror / Atom feed
From: "byone.heng at gmail dot com" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug gcov-profile/101360] New: [Gcov] the assignment statement is marked as executed twice while the similar statement has executed one time Date: Wed, 07 Jul 2021 06:06:56 +0000 [thread overview] Message-ID: <bug-101360-4@http.gcc.gnu.org/bugzilla/> (raw) https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101360 Bug ID: 101360 Summary: [Gcov] the assignment statement is marked as executed twice while the similar statement has executed one time Product: gcc Version: 11.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: gcov-profile Assignee: unassigned at gcc dot gnu.org Reporter: byone.heng at gmail dot com CC: marxin at gcc dot gnu.org Target Milestone: --- $./gcc -v Using built-in specs. COLLECT_GCC=./gcc COLLECT_LTO_WRAPPER=/home/x/project/gcc/build/install/libexec/gcc/x86_64-pc-linux-gnu/11.0.0/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: ../configure --prefix=/home/x/project/gcc/build/install --enable-checking=release --enable-languages=c,c++ --disable-multilib Thread model: posix Supported LTO compression algorithms: zlib gcc version 11.0.0 20210105 (experimental) (GCC) $cat test.c const short int true_var = 1; static signed char false_var = 0; extern inline __attribute__ ((__always_inline__, __gnu_inline__)) char * strstr (const char *haystack, const char *needle) { return __builtin_strstr (haystack, needle); } int main (int argc, const char **argv) { if( true_var > 0 ) { char *substr = strstr (argv[0], "\n"); char *another = strstr (argv[0], "\r\n"); } return 0; } $gcc -O0 --coverage test.c;./a.out;gcov test;cat test.c.gcov -: 5:const short int true_var = 1; -: 6:static signed char false_var = 0; -: 7: -: 8:extern inline __attribute__ ((__always_inline__, __gnu_inline__)) char * -: 9:strstr (const char *haystack, const char *needle) -: 10:{ 2: 11: return __builtin_strstr (haystack, needle); -: 12:} -: 13: -: 14:int 1: 15:main (int argc, const char **argv) -: 16:{ 1: 17: if( true_var > 0 ) -: 18: { 1: 19: char *substr = strstr (argv[0], "\n"); 2: 20: char *another = strstr (argv[0], "\r\n"); -: 21: } 1: 22: return 0; -: 23:} Line 20 should be executed one time.
reply other threads:[~2021-07-07 6:06 UTC|newest] Thread overview: [no followups] expand[flat|nested] mbox.gz Atom feed
Reply instructions: You may reply publicly to this message via plain-text email using any one of the following methods: * Save the following mbox file, import it into your mail client, and reply-to-all from there: mbox Avoid top-posting and favor interleaved quoting: https://en.wikipedia.org/wiki/Posting_style#Interleaved_style * Reply using the --to, --cc, and --in-reply-to switches of git-send-email(1): git send-email \ --in-reply-to=bug-101360-4@http.gcc.gnu.org/bugzilla/ \ --to=gcc-bugzilla@gcc.gnu.org \ --cc=gcc-bugs@gcc.gnu.org \ /path/to/YOUR_REPLY https://kernel.org/pub/software/scm/git/docs/git-send-email.html * If your mail client supports setting the In-Reply-To header via mailto: links, try the mailto: linkBe sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).