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* [Bug tree-optimization/96665] New: [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709
@ 2020-08-17 22:45 seurer at gcc dot gnu.org
2020-08-18 7:19 ` [Bug tree-optimization/96665] " marxin at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: seurer at gcc dot gnu.org @ 2020-08-17 22:45 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96665
Bug ID: 96665
Summary: [11 regression] new FAILs for gcc.dg/strlenopt-55.c
after r11-2709
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: seurer at gcc dot gnu.org
Target Milestone: ---
g:866626efd749ed3e2b7014e88e4340b5a4c73560, r11-2709
Executing on host: /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/strlenopt-55.c
-fdiagnostics-plain-output -O1 -Wall -fdump-tree-gimple -fdump-tree-optimized
-S -o strlenopt-55.s (timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/strlenopt-55.c
-fdiagnostics-plain-output -O1 -Wall -fdump-tree-gimple -fdump-tree-optimized
-S -o strlenopt-55.s
/home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/strlenopt-55.c:128:3:
warning: unsigned conversion from 'int' to 'short unsigned int' changes value
from '65536' to '0' [-Woverflow]
PASS: gcc.dg/strlenopt-55.c (test for warnings, line 128)
Executing on host: /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/ exceptions_enabled90025.cc
-fdiagnostics-plain-output -S -o exceptions_enabled90025.s (timeout = 300)
spawn -ignore SIGHUP /home/seurer/gcc/git/build/gcc-test/gcc/xgcc
-B/home/seurer/gcc/git/build/gcc-test/gcc/ exceptions_enabled90025.cc
-fdiagnostics-plain-output -S -o exceptions_enabled90025.s
PASS: gcc.dg/strlenopt-55.c (test for excess errors)
PASS: gcc.dg/strlenopt-55.c scan-tree-dump-times gimple "strlen1" 0
gcc.dg/strlenopt-55.c: pattern found 3 times
FAIL: gcc.dg/strlenopt-55.c scan-tree-dump-times gimple "memcmp" 0
PASS: gcc.dg/strlenopt-55.c scan-tree-dump-times gimple "strcmp" 0
gcc.dg/strlenopt-55.c: pattern found 3 times
FAIL: gcc.dg/strlenopt-55.c scan-tree-dump-times optimized
"call_in_true_branch_not_eliminated" 0
testcase /home/seurer/gcc/git/gcc-test/gcc/testsuite/gcc.dg/dg.exp completed in
0 seconds
=== gcc Summary ===
# of expected passes 4
# of unexpected failures 2
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/96665] [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709
2020-08-17 22:45 [Bug tree-optimization/96665] New: [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709 seurer at gcc dot gnu.org
@ 2020-08-18 7:19 ` marxin at gcc dot gnu.org
2020-08-18 16:34 ` msebor at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-08-18 7:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96665
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2020-08-18
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
CC| |marxin at gcc dot gnu.org,
| |msebor at gcc dot gnu.org
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
@seurer: Please add author of the revision to CC next time.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/96665] [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709
2020-08-17 22:45 [Bug tree-optimization/96665] New: [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709 seurer at gcc dot gnu.org
2020-08-18 7:19 ` [Bug tree-optimization/96665] " marxin at gcc dot gnu.org
@ 2020-08-18 16:34 ` msebor at gcc dot gnu.org
2020-08-18 18:59 ` cvs-commit at gcc dot gnu.org
2020-08-18 19:00 ` [Bug tree-optimization/96665] [11 regression] memcmp of a constant string not folded msebor at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-08-18 16:34 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96665
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |missed-optimization, patch
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch I plan to commit:
https://gcc.gnu.org/pipermail/gcc-patches/2020-August/552161.html
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/96665] [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709
2020-08-17 22:45 [Bug tree-optimization/96665] New: [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709 seurer at gcc dot gnu.org
2020-08-18 7:19 ` [Bug tree-optimization/96665] " marxin at gcc dot gnu.org
2020-08-18 16:34 ` msebor at gcc dot gnu.org
@ 2020-08-18 18:59 ` cvs-commit at gcc dot gnu.org
2020-08-18 19:00 ` [Bug tree-optimization/96665] [11 regression] memcmp of a constant string not folded msebor at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-08-18 18:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96665
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:
https://gcc.gnu.org/g:d367f5fcb579d21c3093cf5c464f5787fe584a1d
commit r11-2743-gd367f5fcb579d21c3093cf5c464f5787fe584a1d
Author: Martin Sebor <msebor@redhat.com>
Date: Tue Aug 18 12:57:18 2020 -0600
PR middle-end/96665 - memcmp of a constant string not folded
Related:
PR middle-end/78257 - missing memcmp optimization with constant arrays
gcc/ChangeLog:
PR middle-end/96665
PR middle-end/78257
* expr.c (convert_to_bytes): Replace statically allocated buffer
with
a dynamically allocated one of sufficient size.
gcc/testsuite/ChangeLog:
PR middle-end/96665
PR middle-end/78257
* gcc.dg/memcmp-5.c: New test.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/96665] [11 regression] memcmp of a constant string not folded
2020-08-17 22:45 [Bug tree-optimization/96665] New: [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709 seurer at gcc dot gnu.org
` (2 preceding siblings ...)
2020-08-18 18:59 ` cvs-commit at gcc dot gnu.org
@ 2020-08-18 19:00 ` msebor at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: msebor at gcc dot gnu.org @ 2020-08-18 19:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96665
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
Summary|[11 regression] new FAILs |[11 regression] memcmp of a
|for gcc.dg/strlenopt-55.c |constant string not folded
|after r11-2709 |
Target Milestone|--- |11.0
--- Comment #4 from Martin Sebor <msebor at gcc dot gnu.org> ---
Fixed in r11-2743.
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2020-08-18 19:00 UTC | newest]
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2020-08-17 22:45 [Bug tree-optimization/96665] New: [11 regression] new FAILs for gcc.dg/strlenopt-55.c after r11-2709 seurer at gcc dot gnu.org
2020-08-18 7:19 ` [Bug tree-optimization/96665] " marxin at gcc dot gnu.org
2020-08-18 16:34 ` msebor at gcc dot gnu.org
2020-08-18 18:59 ` cvs-commit at gcc dot gnu.org
2020-08-18 19:00 ` [Bug tree-optimization/96665] [11 regression] memcmp of a constant string not folded msebor at gcc dot gnu.org
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