[Bug c++/85601] New: [8 Regression] anonymous struct & union namespace conflict in extern C block

rity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Hi, When compiling with g++ anonymous structs / unions inside C functions conflict based on their variable name. That wa

[Bug c/87489] New: Spurious -Wnonnull warning

: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Created attachment 44775 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44775&action=edit Repro Hi, With the attached, obviously heavily condensed, testcase I get a spurious -W

[Bug c/87489] Spurious -Wnonnull warning

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87489 --- Comment #2 from Andres Freund --- Maybe (In reply to Jonathan Wakely from comment #1) > The first XLogRegisterData could change the value of xl_xinfo.xid to be > non-zero, in which case the second XLogRegisterData call would happen > despite

[Bug c/80076] New: -Wmisleading-indentation doesn't trigger when macro is misindented

ormal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de CC: dmalcolm at gcc dot gnu.org Target Milestone: --- Created attachment 40989 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=4098

[Bug rtl-optimization/71785] Computed gotos are mostly optimized away

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71785 --- Comment #6 from Andres Freund --- Hi, Can confirm this patch fixes the specific code generation issue I complained about, leading to an overall 1.9% improvement in TPC-H performance. There's still some counterproductive jumps, but they're u

[Bug debug/61013] New: Option parsing difference between < 4.9 and 4.9

ent: debug Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de In gcc 4.8 a binary compiled with "gcc -g3 ... -g" would include the extended debug information (e.g. macros), while in gcc 4.9 the second -g seems to lower the debug level. That'

[Bug debug/61013] Option parsing difference between < 4.9 and 4.9

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61013 --- Comment #2 from Andres Freund --- Hi, On 2014-04-30 14:54:20 +, pinskia at gcc dot gnu.org wrote: > -g is the same as -g2 and the later option is supposed to override the first > one. Jus like how -O is handled. The point is that this ha

[Bug debug/61013] [4.9/4.10 Regression] Option parsing difference between < 4.9 and 4.9

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61013 --- Comment #5 from Andres Freund --- Hi, On 2014-04-30 15:48:33 +, pinskia at gcc dot gnu.org wrote: > http://gcc.gnu.org/bugzilla/show_bug.cgi?id=61013 > > --- Comment #4 from Andrew Pinski --- > It was not on accident, see > http://gcc.g

[Bug c/71785] New: Computed gotos are mostly optimized away

Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Hi, I'm working on some interpreter like constructs in postgres. To reduce the number of mispredictions I wanted to use the "typical" jump threading approach. Unfortu

[Bug c/71785] Computed gotos are mostly optimized away

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71785 --- Comment #1 from Andres Freund --- Created attachment 38845 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38845&action=edit reproducer

[Bug c/80076] -Wmisleading-indentation doesn't trigger when macro is misindented

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80076 --- Comment #4 from Andres Freund --- (In reply to Patrick Palka from comment #3) > Fixed for GCC 11. Thanks for the report. Thanks!

[Bug c/100442] New: Spurious -Wstringop-overread error with odd boundaries

Component: c Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Hi, When compiling one of postgres' source files with -O3 I see the following: gcc-11 -O3 -Wall -o /dev/null -c tsvector_op.i In function 'tsCom

[Bug tree-optimization/100442] Spurious -Wstringop-overread error with odd boundaries

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100442 --- Comment #2 from Andres Freund --- Created attachment 50763 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=50763&action=edit preprocessed reproducer Huh, sorry for that. I thought I had attached it. When I tried again now it failed due

[Bug middle-end/104986] New: [12 Regression] bogus writing 1 byte into a region of size 0 with -fwrapv and -O2 -fpeel-loops

Severity: normal Priority: P3 Component: middle-end Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Hi, recently started seeing bogus warnings using gcc 12 to build postgres. I reduced the problem

[Bug target/106590] New: x86-64 miscompilation starting with "i386: Improve ix86_expand_int_movcc" w/ mtune=skylake

NCONFIRMED Severity: normal Priority: P3 Component: target Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Hi, The attached reproducer shows a miscompilation I found building postgres. I've bi

[Bug target/106590] x86-64 miscompilation starting with "i386: Improve ix86_expand_int_movcc" w/ mtune=skylake

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106590 --- Comment #1 from Andres Freund --- Created attachment 53441 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53441&action=edit reproducer

[Bug ipa/106809] New: [12 regression] large bison grammars compilation got a lot slower, mainly due to -Wuninitialized

: UNCONFIRMED Severity: normal Priority: P3 Component: ipa Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de CC: marxin at gcc dot gnu.org Target Milestone: --- Created attachment 53529 --> https://gcc.gnu.

[Bug c/107224] New: ICE: verify_cgraph_node failed with -Og

Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Created attachment 53693 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53693&action=edit reproducer Hi, When building postgres with gcc 13 I get a lot of ICEs. I rep

[Bug tree-optimization/100442] Spurious -Wstringop-overread error with odd boundaries

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100442 --- Comment #4 from Andres Freund --- > Ending up with an excessive range isn't uncommon in code that freely converts > between signed and unsigned integers (e.g., by passing an int to a size_t > argument) and involves conditionals like those

[Bug tree-optimization/101481] New: -ftree-loop-distribute-patterns can slow down and increases size of code

: normal Priority: P3 Component: tree-optimization Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Created attachment 51168 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51168&action=edit sim

[Bug c/110609] New: Bogus -Wmismatched-dealloc when allocator defined & used in same TU w/ -fPIC -fno-semantic-interposition

atus: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Hi, Whenever an allocator function annotated with attribute((malloc(freelike)) is defined

[Bug c/110609] Bogus -Wmismatched-dealloc when allocator defined & used in same TU w/ -fPIC -fno-semantic-interposition

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110609 --- Comment #2 from Andres Freund --- (In reply to Andrew Pinski from comment #1) > Dup. > > *** This bug has been marked as a duplicate of bug 110546 *** Are they really the same? This bug happens at -O0 and requires -fPIC and -fno-semantic-i

[Bug c/110645] New: False positive -Warray-bounds warning

Assignee: unassigned at gcc dot gnu.org Reporter: andres at anarazel dot de Target Milestone: --- Created attachment 55531 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55531&action=edit reproducer Hi, The attached minimized reproducer (from postgres code) tri

[Bug c/117724] [15 regression] ICE when building libgit2 (error: ‘TYPE_CANONICAL’ is not compatible)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117724 --- Comment #8 from Andres Freund --- FWIW, a few of postgres' CI instances (which intentionally track a snapshot gcc) are hitting this (see e.g. [1]). I reproduced the failure locally, applied the patch from [2], after which the build succeeds.