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* [Bug gcov-profile/101487] New: [GCOV] Wrong coverage of "switch" inside "while" loop
@ 2021-07-17 13:04 njuwy at smail dot nju.edu.cn
2022-03-28 15:32 ` [Bug gcov-profile/101487] " njuwy at smail dot nju.edu.cn
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: njuwy at smail dot nju.edu.cn @ 2021-07-17 13:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101487
Bug ID: 101487
Summary: [GCOV] Wrong coverage of "switch" inside "while" loop
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: gcov-profile
Assignee: unassigned at gcc dot gnu.org
Reporter: njuwy at smail dot nju.edu.cn
CC: marxin at gcc dot gnu.org
Target Milestone: ---
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/local/libexec/gcc/x86_64-pc-linux-gnu/10.2.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: ../configure -enable-checking=release -enable-languages=c,c++
-disable-multilib
Thread model: posix
Supported LTO compression algorithms: zlib
gcc version 10.2.0 (GCC)
$ cat test.c
void foo(int x, int y) {
while (x > 0)
switch (({
if (y)
break;
y;
})) {
case 2:
x = 0;
}
}
int main() {
foo(1, 1);
return 0;
}
$ gcc -O0 --coverage test.c;./a.out;gcov test;cat test.c.gcov
File 'test.c'
Lines executed:66.67% of 12
Creating 'test.c.gcov'
-: 0:Source:test.c
-: 0:Graph:test.gcno
-: 0:Data:test.gcda
-: 0:Runs:1
1: 1:void foo(int x, int y) {
1: 2: while (x > 0)
#####: 3: switch (({
1: 4: if (y)
1: 5: break;
#####: 6: y;
-: 7: })) {
#####: 8: case 2:
#####: 9: x = 0;
-: 10: }
1: 11:}
-: 12:
1: 13:int main() {
1: 14: foo(1, 1);
1: 15: return 0;
-: 16:}
Line 3 was wrongly marked as unexecuted
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gcov-profile/101487] [GCOV] Wrong coverage of "switch" inside "while" loop
2021-07-17 13:04 [Bug gcov-profile/101487] New: [GCOV] Wrong coverage of "switch" inside "while" loop njuwy at smail dot nju.edu.cn
@ 2022-03-28 15:32 ` njuwy at smail dot nju.edu.cn
2022-06-14 12:42 ` njuwy at smail dot nju.edu.cn
2022-06-14 12:44 ` njuwy at smail dot nju.edu.cn
2 siblings, 0 replies; 4+ messages in thread
From: njuwy at smail dot nju.edu.cn @ 2022-03-28 15:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101487
Yang Wang <njuwy at smail dot nju.edu.cn> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|UNCONFIRMED |RESOLVED
--- Comment #1 from Yang Wang <njuwy at smail dot nju.edu.cn> ---
INVALID
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gcov-profile/101487] [GCOV] Wrong coverage of "switch" inside "while" loop
2021-07-17 13:04 [Bug gcov-profile/101487] New: [GCOV] Wrong coverage of "switch" inside "while" loop njuwy at smail dot nju.edu.cn
2022-03-28 15:32 ` [Bug gcov-profile/101487] " njuwy at smail dot nju.edu.cn
@ 2022-06-14 12:42 ` njuwy at smail dot nju.edu.cn
2022-06-14 12:44 ` njuwy at smail dot nju.edu.cn
2 siblings, 0 replies; 4+ messages in thread
From: njuwy at smail dot nju.edu.cn @ 2022-06-14 12:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101487
Yang Wang <njuwy at smail dot nju.edu.cn> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |FIXED
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug gcov-profile/101487] [GCOV] Wrong coverage of "switch" inside "while" loop
2021-07-17 13:04 [Bug gcov-profile/101487] New: [GCOV] Wrong coverage of "switch" inside "while" loop njuwy at smail dot nju.edu.cn
2022-03-28 15:32 ` [Bug gcov-profile/101487] " njuwy at smail dot nju.edu.cn
2022-06-14 12:42 ` njuwy at smail dot nju.edu.cn
@ 2022-06-14 12:44 ` njuwy at smail dot nju.edu.cn
2 siblings, 0 replies; 4+ messages in thread
From: njuwy at smail dot nju.edu.cn @ 2022-06-14 12:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101487
Yang Wang <njuwy at smail dot nju.edu.cn> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |UNCONFIRMED
Resolution|FIXED |---
--- Comment #2 from Yang Wang <njuwy at smail dot nju.edu.cn> ---
it still exists in the latest version
^ permalink raw reply [flat|nested] 4+ messages in thread
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2021-07-17 13:04 [Bug gcov-profile/101487] New: [GCOV] Wrong coverage of "switch" inside "while" loop njuwy at smail dot nju.edu.cn
2022-03-28 15:32 ` [Bug gcov-profile/101487] " njuwy at smail dot nju.edu.cn
2022-06-14 12:42 ` njuwy at smail dot nju.edu.cn
2022-06-14 12:44 ` njuwy at smail dot nju.edu.cn
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