[Bug tree-optimization/107172] New: wrong code with "-O1 -ftree-vrp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107172 Bug ID: 107172 Summary: wrong code with "-O1 -ftree-vrp" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Com

[Bug tree-optimization/107194] New: wrong code at -O1 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107194 Bug ID: 107194 Summary: wrong code at -O1 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/107195] New: wrong code with "-O1 -fno-tree-ccp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107195 Bug ID: 107195 Summary: wrong code with "-O1 -fno-tree-ccp" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Pr

[Bug tree-optimization/107229] New: ICE at -O1 and -Os with "-ftree-vectorize": verify_gimple failed

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107229 Bug ID: 107229 Summary: ICE at -O1 and -Os with "-ftree-vectorize": verify_gimple failed Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/107269] New: wrong code at -O1 and above with "-fno-tree-ccp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107269 Bug ID: 107269 Summary: wrong code at -O1 and above with "-fno-tree-ccp" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/107269] wrong code at -O1 and above with "-fno-tree-ccp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107269 --- Comment #1 from Zhendong Su --- A related instance: [537] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper Target: x86_64-pc-

[Bug tree-optimization/107269] wrong code at -O1 and above with "-fno-tree-ccp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107269 --- Comment #2 from Zhendong Su --- Another related instance: [642] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=/local/suz-local/software/local/gcc-trunk/libexec/gcc/x86_64-pc-linux-gnu/13.0.0/lto-wrapper Target: x86_

[Bug tree-optimization/107273] New: wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107273 Bug ID: 107273 Summary: wrong code at -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/107273] wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107273 --- Comment #1 from Zhendong Su --- Likely a related instance (although it fails also at -Os and -O2 besides -O3). Compiler Explorer: https://godbolt.org/z/rdajs47K6 [515] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=

[Bug tree-optimization/107273] wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107273 --- Comment #2 from Zhendong Su --- Another likely related instance that is miscompiled at -O1 and above. Compiler Explorer: https://godbolt.org/z/xqz7f4c7v [570] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=/local/su

[Bug tree-optimization/107273] wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107273 --- Comment #3 from Zhendong Su --- Another likely related instance that is miscompiled at -Os, -O2 and -O3. Compiler Explorer: https://godbolt.org/z/3TbG51Ph3 [628] % gcctk -v Using built-in specs. COLLECT_GCC=gcctk COLLECT_LTO_WRAPPER=/local

[Bug tree-optimization/103860] New: wrong code at -O3 with -fPIC on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103860 Bug ID: 103860 Summary: wrong code at -O3 with -fPIC on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Compone

[Bug tree-optimization/103873] New: wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103873 Bug ID: 103873 Summary: wrong code at -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/104279] New: ICE on valid code at -O1 and above on x86_64-linux-gnu: verify_gimple failed

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104279 Bug ID: 104279 Summary: ICE on valid code at -O1 and above on x86_64-linux-gnu: verify_gimple failed Product: gcc Version: unknown Status: UNCONFIRMED Severity

[Bug tree-optimization/104279] ICE on valid code at -O1 and above on x86_64-linux-gnu: verify_gimple failed

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104279 --- Comment #1 from Zhendong Su --- >From Compiler Explorer: https://godbolt.org/z/465M9Kvx1

[Bug tree-optimization/104280] New: wrong code at -O1 and above

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104280 Bug ID: 104280 Summary: wrong code at -O1 and above Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization

[Bug tree-optimization/104280] wrong code at -O1 and above

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104280 --- Comment #1 from Zhendong Su --- It might be related to PR 104279. Compiler Explorer: https://godbolt.org/z/szrGT9E7T

[Bug tree-optimization/104281] New: wrong code at -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104281 Bug ID: 104281 Summary: wrong code at -O3 Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-optimization

[Bug tree-optimization/104281] wrong code at -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104281 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/ovnrnEGj6

[Bug tree-optimization/104519] New: wrong code at -Os on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104519 Bug ID: 104519 Summary: wrong code at -Os on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/104519] wrong code at -Os on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104519 --- Comment #1 from Zhendong Su --- >From Compiler Explorer: https://godbolt.org/z/s7Eco5EGb

[Bug tree-optimization/104521] New: wrong code at -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104521 Bug ID: 104521 Summary: wrong code at -O2 and -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug tree-optimization/104521] wrong code at -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104521 --- Comment #1 from Zhendong Su --- >From Compiler Explorer: https://godbolt.org/z/Y37Wo9e8c

[Bug tree-optimization/104543] New: wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104543 Bug ID: 104543 Summary: wrong code at -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/104543] wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104543 --- Comment #1 from Zhendong Su --- >From Compiler Explorer: https://godbolt.org/z/s1WW4snzM

[Bug tree-optimization/103079] New: wrong code at -Os and -O2 on x86_64-linux-gnu (the generated code hangs)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103079 Bug ID: 103079 Summary: wrong code at -Os and -O2 on x86_64-linux-gnu (the generated code hangs) Product: gcc Version: unknown Status: UNCONFIRMED Severity: no

[Bug tree-optimization/103152] New: wrong code at -O1 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103152 Bug ID: 103152 Summary: wrong code at -O1 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/103188] New: ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103188 Bug ID: 103188 Summary: ICE on valid code at -O2 and -O3 on x86_64-linux-gnu: Segmentation fault Product: gcc Version: unknown Status: UNCONFIRMED Severity: no

[Bug tree-optimization/103231] New: ICE (nondeterministic) on valid code at -O1 on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103231 Bug ID: 103231 Summary: ICE (nondeterministic) on valid code at -O1 on x86_64-linux-gnu: Segmentation fault Product: gcc Version: unknown Status: UNCONFIRMED S

[Bug tree-optimization/103231] [12 Regression] ICE (nondeterministic) on valid code at -O1 on x86_64-linux-gnu: Segmentation fault since r12-5014-g6b8b959675a3e14c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103231 --- Comment #6 from Zhendong Su --- (In reply to Martin Liška from comment #5) > Simplified test-case: Oh, great; thanks, Martin!

[Bug tree-optimization/103231] [12 Regression] ICE (nondeterministic) on valid code at -O1 on x86_64-linux-gnu: Segmentation fault since r12-5014-g6b8b959675a3e14c

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103231 --- Comment #9 from Zhendong Su --- A very simple repro (with ulimit -s 32): [530] % compile.sh small.c *** Compiling with: gcctk -O1 small.c gcctk: internal compiler error: Segmentation fault signal terminated program cc1 Please submit a full

[Bug tree-optimization/103300] New: wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103300 Bug ID: 103300 Summary: wrong code at -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug c/103314] New: ICE on valid code at -O1 and above on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103314 Bug ID: 103314 Summary: ICE on valid code at -O1 and above on x86_64-linux-gnu: Segmentation fault Product: gcc Version: unknown Status: UNCONFIRMED Severity:

[Bug c/103314] ICE on valid code at -O1 and above on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103314 --- Comment #1 from Zhendong Su --- BT below: #0 0x011ee287 in wi::fits_to_tree_p > > > (x=..., type=0x765f15e8) at ../../gcc-trunk/gcc/tree.h:6263 #1 0x011ddf6f in force_fit_type (type=type@entry=0x765f15e8, cst=

[Bug tree-optimization/103376] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103376 Bug ID: 103376 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/103376] [12 Regression] wrong code at -Os and above on x86_64-linux-gnu since r12-5453-ga944b5dec3adb28e

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103376 --- Comment #7 from Zhendong Su --- A couple of additional tests for the same issue: (1) at -Os and above [622] % gcctk -O1 small.c; ./a.out [623] % gcctk -Os small.c; ./a.out Aborted [624] % cat small.c long a = 2653121401; unsigned char b; i

[Bug tree-optimization/102902] [12 Regression] -O3 produces code that uses an uninitialized variable but originally was not used by r12-3876

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102902 --- Comment #6 from Zhendong Su --- Hi Richard, I just noticed that this issue was mis-categorized as a duplicate of 102920, which was filed later. It's not very important, but it would probably be nice to correctly label the issues in the bug t

[Bug tree-optimization/103417] New: wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103417 Bug ID: 103417 Summary: wrong code at -O1 and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/103440] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103440 Bug ID: 103440 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/103464] New: ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464 Bug ID: 103464 Summary: ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault Product: gcc Version: unknown Status: UNCONF

[Bug tree-optimization/103464] ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464 --- Comment #1 from Zhendong Su --- Backtrace: #0 irange::irange (nranges=255, base=0x7ff7edd0, this=0x7ff7edc0) at ../../gcc-trunk/gcc/value-range.h:400 #1 int_range<255u>::int_range (this=0x7ff7edc0) at ../../gcc-trunk/gcc/v

[Bug tree-optimization/103464] [12 Regression] ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault since r12-5522-g661c02e54ea72fb5

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464 --- Comment #6 from Zhendong Su --- (In reply to Martin Liška from comment #2) > Started with r12-5522-g661c02e54ea72fb5, note that ulimit -s 600 works fine > and I'm not fully convinced such a small stack limit should be an issue? > > Shouldn'

[Bug tree-optimization/103464] [12 Regression] ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault since r12-5522-g661c02e54ea72fb5

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464 --- Comment #9 from Zhendong Su --- Created attachment 51893 --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=51893&action=edit partially reduced test

[Bug tree-optimization/103464] [12 Regression] ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault since r12-5522-g661c02e54ea72fb5

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464 --- Comment #10 from Zhendong Su --- > Can you please attach the original test-case? Added. This was a partially reduced test; the original was: 15041 70889 783444 t.c

[Bug tree-optimization/103464] [12 Regression] ICE on valid code at -O1 (with -ftree-vrp and ulimit -s 512) on x86_64-linux-gnu: Segmentation fault since r12-5522-g661c02e54ea72fb5

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103464 --- Comment #12 from Zhendong Su --- (In reply to Richard Biener from comment #11) > (In reply to Zhendong Su from comment #9) > > Created attachment 51893 [details] > > partially reduced test > > What's your default (unreduced) ulimit -s? 819

[Bug ipa/103486] New: ICE on valid code at -Os and above on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103486 Bug ID: 103486 Summary: ICE on valid code at -Os and above on x86_64-linux-gnu: Segmentation fault Product: gcc Version: unknown Status: UNCONFIRMED Severity:

[Bug tree-optimization/103300] [12 Regression] wrong code at -O3 on x86_64-linux-gnu since r12-4526-gd8edfadfc7a9795b

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103300 --- Comment #6 from Zhendong Su --- Another test likely for the same issue: [652] % gcctk -O3 small.c; ./a.out Aborted [653] % gcctk -O2 -floop-unroll-and-jam small.c; ./a.out Aborted [654] % cat small.c int printf(const char *, ...); int a[2],

[Bug ipa/103513] [12 Regression] ICE in evaluate_conditions_for_known_args, at ipa-fnsummary.c:516 with -O2 and above since r12-5531-g1b0acc4b800b589a

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103513 Zhendong Su changed: What|Removed |Added CC||zhendong.su at inf dot ethz.ch --- Commen

[Bug tree-optimization/102131] [12 Regression] wrong code at -O1 and above on x86_64-linux-gnu since r12-3136

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102131 --- Comment #9 from Zhendong Su --- Perhaps the following is due to the same root cause? [558] % gcctk -O0 small.c; ./a.out [559] % gcctk -O1 small.c; ./a.out Aborted [560] % cat small.c int a; int main() { unsigned b = 0; for (a = 2; a < 8

[Bug tree-optimization/102087] New: ICE on valid code at -O3 on x86_64-linux-gnu: in determine_exit_conditions, at tree-ssa-loop-manip.c:1049

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102087 Bug ID: 102087 Summary: ICE on valid code at -O3 on x86_64-linux-gnu: in determine_exit_conditions, at tree-ssa-loop-manip.c:1049 Product: gcc Version: unknown

[Bug tree-optimization/102131] New: wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102131 Bug ID: 102131 Summary: wrong code at -O1 and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/102364] New: wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102364 Bug ID: 102364 Summary: wrong code at -O1 and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug middle-end/102403] [12 Regression] ICE in in init_from_control_deps, at gimple-predicate-analysis.cc:2364

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102403 Zhendong Su changed: What|Removed |Added CC||zhendong.su at inf dot ethz.ch --- Commen

[Bug tree-optimization/102446] New: wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102446 Bug ID: 102446 Summary: wrong code at -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/102546] [12 Regregression] Missed Dead Code Elimination regression (trunk vs 11.2.0) at -O3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102546 --- Comment #7 from Zhendong Su --- (In reply to Aldy Hernandez from comment #6) > (In reply to Richard Biener from comment #4) > > I think it's similar to in the other PR, with old EVRP when visiting BB 8 > > BTW, which is this other PR, so I

[Bug tree-optimization/102636] New: wrong code at -O1 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102636 Bug ID: 102636 Summary: wrong code at -O1 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/102645] New: ICE on valid code at -O3 on x86_64-linux-gnu: Segmentation fault

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102645 Bug ID: 102645 Summary: ICE on valid code at -O3 on x86_64-linux-gnu: Segmentation fault Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/102736] New: wrong code at -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102736 Bug ID: 102736 Summary: wrong code at -O2 and -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug tree-optimization/102769] New: wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 Bug ID: 102769 Summary: wrong code at -O1 and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/102769] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 --- Comment #2 from Zhendong Su --- Interesting --- it was missed by clang-10 sanitizers and the CompCert interpreter (a pretty rare occurrence): [565] % ccomp -interp -fall small.c small.c:13: warning: implicit declaration of function '__buil

[Bug tree-optimization/102769] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 --- Comment #5 from Zhendong Su --- Yes, it's clear that the code is invalid. I should update my reduction script to use more recent clang and gcc for ruling out UBs.

[Bug tree-optimization/102769] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 --- Comment #7 from Zhendong Su --- (In reply to Martin Liška from comment #6) > (In reply to Zhendong Su from comment #5) > > Yes, it's clear that the code is invalid. I should update my reduction > > script to use more recent clang and gcc for

[Bug tree-optimization/102769] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 --- Comment #9 from Zhendong Su --- > Don't apologize, you have created very many wrong-code issues. > We appreciate the effort of your team. Thanks, Martin :)

[Bug tree-optimization/102769] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102769 --- Comment #11 from Zhendong Su --- > s/created/reported/ > We as GCC developers have created them. Thanks for this clarification, Jakob :) > Anyway, thanks for all the bug reports. Sure thing. Thanks to all you folks for the great work in m

[Bug tree-optimization/102830] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102830 Bug ID: 102830 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/102902] New: wrong code at -O3 on x86_64-linux-gnu (generated code hangs)

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102902 Bug ID: 102902 Summary: wrong code at -O3 on x86_64-linux-gnu (generated code hangs) Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/103006] New: wrong code at -O2 (only) on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103006 Bug ID: 103006 Summary: wrong code at -O2 (only) on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug tree-optimization/107523] New: wrong code at -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107523 Bug ID: 107523 Summary: wrong code at -O2 and -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug tree-optimization/107541] New: wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107541 Bug ID: 107541 Summary: wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Compo

[Bug tree-optimization/107833] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107833 Bug ID: 107833 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/107935] New: ICE on valid code at -O3: in set_ssa_val_to, at tree-ssa-sccvn.cc:5011

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107935 Bug ID: 107935 Summary: ICE on valid code at -O3: in set_ssa_val_to, at tree-ssa-sccvn.cc:5011 Product: gcc Version: unknown Status: UNCONFIRMED Severity: norm

[Bug tree-optimization/107937] [13 Regression] ICE in find_var_cmp_const, at gimple-predicate-analysis.cc:257 since r13-4408-gb628cad9e093f7a3

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107937 Zhendong Su changed: What|Removed |Added CC||zhendong.su at inf dot ethz.ch --- Commen

[Bug tree-optimization/108007] New: wrong code at -Os and above with "-fno-dce -fno-tree-dce" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108007 Bug ID: 108007 Summary: wrong code at -Os and above with "-fno-dce -fno-tree-dce" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severit

[Bug tree-optimization/108139] New: wrong code with "-O1 -ftree-vrp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108139 Bug ID: 108139 Summary: wrong code with "-O1 -ftree-vrp" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Com

[Bug rtl-optimization/108148] New: ICE on valid code with "-O3 -fno-inline-functions-called-once -fno-inline-small-functions -fno-tree-ccp -fno-tree-dce -fno-tree-vrp" on x86_64-linux-gnu: maximum num

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108148 Bug ID: 108148 Summary: ICE on valid code with "-O3 -fno-inline-functions-called-once -fno-inline-small-functions -fno-tree-ccp -fno-tree-dce -fno-tree-vrp" on x86

[Bug tree-optimization/108164] New: wrong code with "-O3 -fno-tree-dce" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108164 Bug ID: 108164 Summary: wrong code with "-O3 -fno-tree-dce" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Pr

[Bug tree-optimization/108308] New: wrong code at -Os and -O2 with "-fno-tree-ccp" on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=108308 Bug ID: 108308 Summary: wrong code at -Os and -O2 with "-fno-tree-ccp" on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal

[Bug tree-optimization/105665] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105665 Bug ID: 105665 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/105665] wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105665 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/jsT5Evv54

[Bug tree-optimization/106032] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106032 Bug ID: 106032 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/106032] wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106032 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/PnTzaKsf4

[Bug tree-optimization/106073] New: wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106073 Bug ID: 106073 Summary: wrong code at -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: tree-op

[Bug tree-optimization/106073] wrong code at -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106073 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/o3jq85vYK

[Bug tree-optimization/106112] New: wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106112 Bug ID: 106112 Summary: wrong code at -Os and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/106112] wrong code at -Os and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106112 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/v6qY9d6q6

[Bug tree-optimization/106114] New: wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106114 Bug ID: 106114 Summary: wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Compo

[Bug tree-optimization/106114] wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106114 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/T38WEd376

[Bug tree-optimization/106115] New: wrong code at -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106115 Bug ID: 106115 Summary: wrong code at -O2 and -O3 on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component:

[Bug tree-optimization/106115] wrong code at -O2 and -O3 on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106115 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/Pa3xqsE3E

[Bug tree-optimization/106114] [13 Regression] wrong code at -O1, -O2 and -O3 on x86_64-linux-gnu since r13-1268-g8c99e307b20c502e

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106114 --- Comment #6 from Zhendong Su --- Two additional recent miscompiles that are likedly related: (1) [638] % gcctk -O0 small.c; ./a.out [639] % gcctk -O1 small.c [640] % ./a.out Aborted [641] % cat small.c int a, b; int main() { int c = 0, d,

[Bug tree-optimization/106171] New: wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106171 Bug ID: 106171 Summary: wrong code at -O1 and above on x86_64-linux-gnu Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Componen

[Bug tree-optimization/106171] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106171 --- Comment #1 from Zhendong Su --- Compiler Explorer: https://godbolt.org/z/eEhKn8x9T

[Bug tree-optimization/106171] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106171 --- Comment #3 from Zhendong Su --- Yes, you're right, Jakub. Then, it's a false negative for the sanitizers.

[Bug tree-optimization/106171] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106171 Zhendong Su changed: What|Removed |Added Resolution|--- |INVALID Status|UNCONFIRMED

[Bug tree-optimization/106171] wrong code at -O1 and above on x86_64-linux-gnu

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106171 --- Comment #7 from Zhendong Su --- (In reply to Jakub Jelinek from comment #5) > And -O1 -Wall warns: > pr106171.c: In function ‘c’: > pr106171.c:10:15: warning: ‘e[0]’ is used uninitialized [-Wuninitialized] >10 | return e[0]; >

[Bug tree-optimization/106194] New: ICE on valid code at -O3 on x86_64-linux-gnu: in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:717

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106194 Bug ID: 106194 Summary: ICE on valid code at -O3 on x86_64-linux-gnu: in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:717 Product: gcc Version: unknown

[Bug tree-optimization/106194] [13 Regression] ICE on valid code at -O3 on x86_64-linux-gnu: in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:717

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106194 --- Comment #2 from Zhendong Su --- (In reply to Andrew Pinski from comment #1) > Most likely a dup of bug 106182. Yes, it should be. Sorry for the dup (the dup checker didn't show PR106182).

[Bug tree-optimization/106194] [13 Regression] ICE on valid code at -O3 on x86_64-linux-gnu: in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:717

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106194 Zhendong Su changed: What|Removed |Added Resolution|--- |DUPLICATE Status|UNCONFIRMED

[Bug tree-optimization/106182] [13 Regression] ICE in check_loop_closed_ssa_def, at tree-ssa-loop-manip.cc:717 since r13-1450-gd2a898666609452e

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106182 Zhendong Su changed: What|Removed |Added CC||zhendong.su at inf dot ethz.ch --- Commen

[Bug tree-optimization/106198] [13 Regression] 25_algorithms/find_end/constrained.cc ICEs in check_loop_closed_ssa_def

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106198 Zhendong Su changed: What|Removed |Added CC||zhendong.su at inf dot ethz.ch --- Commen

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