[Bug debug/107169] [13 Regression] -fcompare-debug failure at -O and above since r13-2921-gf1adf45b17f7f1ed

[jakub at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107169

Jakub Jelinek  changed:

   What|Removed |Added

   Target Milestone|13.3|13.4

--- Comment #6 from Jakub Jelinek  ---
GCC 13.3 is being released, retargeting bugs to GCC 13.4.

[Bug debug/107169] [13 Regression] -fcompare-debug failure at -O and above since r13-2921-gf1adf45b17f7f1ed

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107169

Richard Biener  changed:

   What|Removed |Added

   Priority|P3  |P2

[Bug debug/107169] [13 Regression] -fcompare-debug failure at -O and above since r13-2921-gf1adf45b17f7f1ed

[erozen at microsoft dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107169

--- Comment #2 from Eugene Rozenfeld  ---
When -gstatement-frontiers is on, the IR coming from the front end may be
different with and without debug information turned on. That may cause e.g.,
different discriminator values and -fcompare-debug failures.

See https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100733.

In  https://gcc.gnu.org/git/gitweb.cgi?p=gcc.git;h=f1adf45b17f7f1ed I added
-gno-statement-frontiers to gcc/testsuite/c-c++-common/ubsan/pr85213.c
b/gcc/testsuite/c-c++-common/ubsan/pr85213.c to work around this problem for
that test.

[Bug debug/107169] [13 Regression] -fcompare-debug failure at -O and above since r13-2921-gf1adf45b17f7f1ed

[rguenth at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107169

Richard Biener  changed:

   What|Removed |Added

   Target Milestone|--- |13.0

[Bug debug/107169] [13 Regression] -fcompare-debug failure at -O and above since r13-2921-gf1adf45b17f7f1ed

[marxin at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107169

Martin Liška  changed:

   What|Removed |Added

   Last reconfirmed||2022-10-06
 Ever confirmed|0   |1
Summary|[13 Regression] |[13 Regression]
   |-fcompare-debug failure at  |-fcompare-debug failure at
   |-O and above|-O and above since
   ||r13-2921-gf1adf45b17f7f1ed
 Status|UNCONFIRMED |NEW
 CC||erozen at microsoft dot com,
   ||marxin at gcc dot gnu.org

--- Comment #1 from Martin Liška  ---
Started with r13-2921-gf1adf45b17f7f1ed.