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* [Bug c++/110756] New: [14 Regression] commit g:92d1425ca78 causes failures in g++.dg/gomp/pr58567.C
@ 2023-07-20 21:44 thiago.bauermann at linaro dot org
  2023-07-20 21:51 ` [Bug testsuite/110756] " pinskia at gcc dot gnu.org
                   ` (5 more replies)
  0 siblings, 6 replies; 7+ messages in thread
From: thiago.bauermann at linaro dot org @ 2023-07-20 21:44 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110756

            Bug ID: 110756
           Summary: [14 Regression] commit g:92d1425ca78 causes failures
                    in g++.dg/gomp/pr58567.C
           Product: gcc
           Version: 14.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: thiago.bauermann at linaro dot org
                CC: ppalka at gcc dot gnu.org
  Target Milestone: ---

Our CI detected that commit g:92d1425ca780 "c++: redundant targ coercion for
var/alias tmpls" caused these testsuite failures:

Running g++:g++.dg/gomp/gomp.exp ...
FAIL: g++.dg/gomp/pr58567.C -std=c++14 (test for excess errors)
FAIL: g++.dg/gomp/pr58567.C -std=c++17 (test for excess errors)
FAIL: g++.dg/gomp/pr58567.C -std=c++20 (test for excess errors)
FAIL: g++.dg/gomp/pr58567.C -std=c++98 (test for excess errors)

I confirmed that the problem is still present in trunk as of commit
g:b50a851eef4b "i386: Double-word sign-extension missed-optimization
[PR110717]" from today.

I also confirmed that reverting the mentioned commit from trunk fixes the test
failures. Reproduced the problem on Ubuntu 22.04, on both aarch64-linux and
x86_64-linux.

The relevant part of g++.log is:

Executing on host:
/home/thiago.bauermann/.cache/builds/gcc-native/gcc/testsuite/g++/../../xg++
-B/home/thiago.bauermann/.cache/builds/gcc-native/gcc/testsuite/g++/../../
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C   
-fdiagnostics-plain-output  -nostdinc++
-I/home/thiago.bauermann/.cache/builds/gcc-native/aarch64-unknown-linux-gnu/libstdc++-v3/include/aarch64-unknown-linux-gnu
-I/home/thiago.bauermann/.cache/builds/gcc-native/aarch64-unknown-linux-gnu/libstdc++-v3/include
-I/home/thiago.bauermann/src/gcc/libstdc++-v3/libsupc++
-I/home/thiago.bauermann/src/gcc/libstdc++-v3/include/backward
-I/home/thiago.bauermann/src/gcc/libstdc++-v3/testsuite/util -fmessage-length=0
 -std=c++20 -fopenmp  -S -o pr58567.s    (timeout = 300)
spawn -ignore SIGHUP
/home/thiago.bauermann/.cache/builds/gcc-native/gcc/testsuite/g++/../../xg++
-B/home/thiago.bauermann/.cache/builds/gcc-native/gcc/testsuite/g++/../../
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C
-fdiagnostics-plain-output -nostdinc++
-I/home/thiago.bauermann/.cache/builds/gcc-native/aarch64-unknown-linux-gnu/libstdc++-v3/include/aarch64-unknown-linux-gnu
-I/home/thiago.bauermann/.cache/builds/gcc-native/aarch64-unknown-linux-gnu/libstdc++-v3/include
-I/home/thiago.bauermann/src/gcc/libstdc++-v3/libsupc++
-I/home/thiago.bauermann/src/gcc/libstdc++-v3/include/backward
-I/home/thiago.bauermann/src/gcc/libstdc++-v3/testsuite/util -fmessage-length=0
-std=c++20 -fopenmp -S -o pr58567.s
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C: In
instantiation of 'void foo() [with T = int]':
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C:14:11:  
required from here
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C:8:22: error:
'int' is not a class, struct, or union type
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C:8:3: error:
invalid type for iteration variable 'i'
compiler exited with status 1
PASS: g++.dg/gomp/pr58567.C  -std=c++20  (test for errors, line 8)
FAIL: g++.dg/gomp/pr58567.C  -std=c++20 (test for excess errors)
Excess errors:
/home/thiago.bauermann/src/gcc/gcc/testsuite/g++.dg/gomp/pr58567.C:8:3: error:
invalid type for iteration variable 'i'


Tested with:

$ ~/src/gcc/configure \
    --disable-bootstrap \
    --disable-multilib \
&& make -j 8 \
&& make -C gcc check-c++ RUNTESTFLAGS=g++.dg/gomp/gomp.exp

^ permalink raw reply	[flat|nested] 7+ messages in thread
end of thread, other threads:[~2023-08-20 19:05 UTC | newest]

Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2023-07-20 21:44 [Bug c++/110756] New: [14 Regression] commit g:92d1425ca78 causes failures in g++.dg/gomp/pr58567.C thiago.bauermann at linaro dot org
2023-07-20 21:51 ` [Bug testsuite/110756] " pinskia at gcc dot gnu.org
2023-07-20 23:15 ` thiago.bauermann at linaro dot org
2023-07-21 13:38 ` ppalka at gcc dot gnu.org
2023-07-21 19:53 ` pinskia at gcc dot gnu.org
2023-08-20 19:02 ` cvs-commit at gcc dot gnu.org
2023-08-20 19:05 ` burnus at gcc dot gnu.org

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