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* [Bug rtl-optimization/96264] New: [10/11 Regression] wrong code with -Os -fno-forward-propagate -fschedule-insns -fno-tree-ter
@ 2020-07-21 11:00 zsojka at seznam dot cz
  2020-07-21 14:20 ` [Bug rtl-optimization/96264] " rguenth at gcc dot gnu.org
                   ` (24 more replies)
  0 siblings, 25 replies; 26+ messages in thread
From: zsojka at seznam dot cz @ 2020-07-21 11:00 UTC (permalink / raw)
  To: gcc-bugs

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96264

            Bug ID: 96264
           Summary: [10/11 Regression] wrong code with -Os
                    -fno-forward-propagate -fschedule-insns -fno-tree-ter
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Keywords: wrong-code
          Severity: normal
          Priority: P3
         Component: rtl-optimization
          Assignee: unassigned at gcc dot gnu.org
          Reporter: zsojka at seznam dot cz
  Target Milestone: ---
              Host: x86_64-pc-linux-gnu
            Target: powerpc64le-unknown-linux-gnu

Created attachment 48905
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48905&action=edit
reduced testcase

$ powerpc64le-unknown-linux-gnu-gcc -Os -fno-forward-propagate -fschedule-insns
-fno-tree-ter testcase.c -static
$ ./a.out 
qemu: uncaught target signal 6 (Aborted) - core dumped
Aborted
(using qemu userspace emulation)

I am unable to find why is the generated code wrong; it might be also a qemu
error.

$ powerpc64le-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-powerpc64le/bin/powerpc64le-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r11-2246-20200721142816-gc850a642e1d-checking-yes-rtl-df-extra-powerpc64le/bin/../libexec/gcc/powerpc64le-unknown-linux-gnu/11.0.0/lto-wrapper
Target: powerpc64le-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl
--with-sysroot=/usr/powerpc64le-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=powerpc64le-unknown-linux-gnu
--with-ld=/usr/bin/powerpc64le-unknown-linux-gnu-ld
--with-as=/usr/bin/powerpc64le-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r11-2246-20200721142816-gc850a642e1d-checking-yes-rtl-df-extra-powerpc64le
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 11.0.0 20200721 (experimental) (GCC)

^ permalink raw reply	[flat|nested] 26+ messages in thread
end of thread, other threads:[~2021-03-31 20:01 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-07-21 11:00 [Bug rtl-optimization/96264] New: [10/11 Regression] wrong code with -Os -fno-forward-propagate -fschedule-insns -fno-tree-ter zsojka at seznam dot cz
2020-07-21 14:20 ` [Bug rtl-optimization/96264] " rguenth at gcc dot gnu.org
2020-07-23  6:51 ` rguenth at gcc dot gnu.org
2020-07-23 10:56 ` marxin at gcc dot gnu.org
2020-10-12 12:44 ` rguenth at gcc dot gnu.org
2021-02-11 14:45 ` seurer at gcc dot gnu.org
2021-02-11 14:46 ` seurer at gcc dot gnu.org
2021-02-11 14:49 ` seurer at gcc dot gnu.org
2021-02-11 15:49 ` rguenth at gcc dot gnu.org
2021-02-11 16:00 ` jakub at gcc dot gnu.org
2021-02-11 16:19 ` seurer at gcc dot gnu.org
2021-02-11 18:43 ` jakub at gcc dot gnu.org
2021-02-11 19:01 ` jakub at gcc dot gnu.org
2021-02-17 15:47 ` vmakarov at gcc dot gnu.org
2021-02-18 22:51 ` cvs-commit at gcc dot gnu.org
2021-02-19 16:34 ` seurer at gcc dot gnu.org
2021-02-19 19:29 ` bergner at gcc dot gnu.org
2021-02-19 20:20 ` seurer at gcc dot gnu.org
2021-03-30 19:02 ` [Bug rtl-optimization/96264] [10 " bergner at gcc dot gnu.org
2021-03-30 21:33 ` vmakarov at gcc dot gnu.org
2021-03-31  7:16 ` rguenth at gcc dot gnu.org
2021-03-31 12:55 ` vmakarov at gcc dot gnu.org
2021-03-31 12:58 ` tnfchris at gcc dot gnu.org
2021-03-31 16:53 ` cvs-commit at gcc dot gnu.org
2021-03-31 16:57 ` vmakarov at gcc dot gnu.org
2021-03-31 20:01 ` seurer at gcc dot gnu.org

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