[Linaro-TCWG-CI] gcc-16-1550-g9244ea4bf556: Failure on aarch64

2025-06-18 Thread ci_notify--- via Gcc-regression 
Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find 
some details below.

In  master-aarch64, after:
  | commit gcc-16-1550-g9244ea4bf556
  | Author: Andrew MacLeod 
  | Date:   Mon Jun 16 15:41:47 2025 -0400
  | 
  | Snap subrange boundries to bitmask constraints.
  | 
  | Ensure all subrange endpoints conform to the bitmask.
  | 
  | PR tree-optimization/120661
  | ... 9 lines of the commit log omitted.

Produces Failure:
  | Results changed to
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe binutils:
  | 1
  | # build_abe gcc:
  | 2
  | # build_abe linux:
  | 4
  | # build_abe glibc:
  | # FAILED
  | # build_abe gdb:
  | # First few build errors in logs:
  | # 00:02:30 fnmatch_loop.c:546:57: error: ‘idx’ may be used uninitialized 
[-Werror=maybe-uninitialized]
  | # 00:02:30 fnmatch_loop.c:758:41: error: ‘idx’ may be used uninitialized 
[-Werror=maybe-uninitialized]
  | # 00:02:31 fnmatch_loop.c:544:54: error: ‘wextra’ may be used uninitialized 
[-Werror=maybe-uninitialized]
  | # 00:02:31 fnmatch_loop.c:749:50: error: ‘wextra’ may be used uninitialized 
[-Werror=maybe-uninitialized]
  | # 00:02:32 make[2]: *** [../o-iterator.mk:9: 
/home/tcwg-buildslave/workspace/tcwg_gnu_0/abe/builds/aarch64-unknown-linux-gnu/aarch64-unknown-linux-gnu/glibc-glibc.git~master/posix/fnmatch.o]
 Error 1
  | # 00:02:32 make[1]: *** [Makefile:484: posix/subdir_lib] Error 2
  | # 00:02:32 make: *** [Makefile:20: all] Error 2
  | 
  | From
  | # reset_artifacts:
  | -10
  | # true:
  | 0
  | # build_abe binutils:
  | 1
  | # build_abe gcc:
  | 2
  | # build_abe linux:
  | 4
  | # build_abe glibc:
  | 5
  | # build_abe gdb:
  | 6

Used configuration :
 *CI config* tcwg_gnu_native_build master-aarch64
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu

We track this bug report under https://linaro.atlassian.net/browse/GNU-1608. 
Please let us know if you have a fix.

If you have any questions regarding this report, please ask on 
linaro-toolch...@lists.linaro.org mailing list.

-8<--8<--8<--

The information below contains the details of the failures, and the ways to 
reproduce a debug environment:

You can find the failure logs in
 * 
https://ci.linaro.org/job/tcwg_gnu_native_build--master-aarch64-build/1088/artifact/artifacts/
The full lists of regressions and improvements as well as configure and make 
commands are in
 * 
https://ci.linaro.org/job/tcwg_gnu_native_build--master-aarch64-build/1088/artifact/artifacts/notify/

Current build   : 
https://ci.linaro.org/job/tcwg_gnu_native_build--master-aarch64-build/1088/artifact/artifacts
Reference build : 
https://ci.linaro.org/job/tcwg_gnu_native_build--master-aarch64-build/1087/artifact/artifacts

Instruction to reproduce the build : 
https://gitlab.com/Linaro/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/9244ea4bf556381d3f7fb66154dc8944ebeb005c/tcwg_gnu_native_build/master-aarch64/reproduction_instructions.txt

Full commit : See in git+ssh://linar...@gcc.gnu.org/git/gcc.git

Regressions on native/master at commit r16-1566 vs commit r16-1560 on Linux/x86_64

2025-06-18 Thread Haochen Jiang via Gcc-regression 
Regressions on master at commit r16-1566 vs commit r16-1560 on Linux/x86_64
New failures:

New passes:
FAIL: g++.dg/coroutines/torture/func-params-07.C   -O2  execution test
FAIL: g++.dg/coroutines/torture/func-params-07.C   -O2  execution test

Regressions on master at commit r16-1565 vs commit r16-1559 on Linux/x86_64

2025-06-18 Thread Haochen Jiang via Gcc-regression 
Regressions on master at commit r16-1565 vs commit r16-1559 on Linux/x86_64
New failures:
FAIL: 30_threads/async/async.cc  -std=gnu++17 execution test

New passes:
FAIL: g++.dg/coroutines/torture/func-params-07.C   -O2  execution test
FAIL: g++.dg/coroutines/torture/func-params-07.C   -O2  execution test

Regressions on master at commit r16-1567 vs commit r16-1565 on Linux/x86_64

2025-06-18 Thread Haochen Jiang via Gcc-regression 
Regressions on master at commit r16-1567 vs commit r16-1565 on Linux/x86_64
New failures:

New passes:
FAIL: 30_threads/async/async.cc  -std=gnu++17 execution test

Re: [Linaro-TCWG-CI] gcc-16-1550-g9244ea4bf556: Failure on aarch64

2025-06-18 Thread Sam James via Gcc-regression 
Could you file a glibc bug for this please? It needs some analysis to
see if it's an FP or not.

There's actually a suppression for -Os already there:

if (elem < table_size)
  {
/* Compare the byte sequence but only if
   this is not part of a range.  */

/* The compiler might warn that idx may be
   used uninitialized, however it will be
   reached iff elem < table_size which means
   that it was properly set in the loop
   above.   */
DIAG_PUSH_NEEDS_COMMENT;
DIAG_IGNORE_Os_NEEDS_COMMENT (8, 
"-Wmaybe-uninitialized");
if (! is_range

# if WIDE_CHAR_VERSION
&& __wmemcmp (n, &wextra[1], c1) == 0
# else
&& memcmp (n, &extra[idx + 1], c1) == 0
# endif
)
  {
n += c1 - 1;
goto matched;
  }
DIAG_POP_NEEDS_COMMENT;