https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87252
--- Comment #7 from Abrahm Scully ---
I hit an ICE today that looks like this bug. I attempted to build
gcc-10-20200329 on 32-bit CentOS 6 using g++ 4.4.7-23.el6. I don't see this bug
building gcc-6.3, gcc-7.3, gcc-8.3, or gcc-9-20200118 on the s
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87252
--- Comment #8 from Abrahm Scully ---
I don't think anything is wrong with gcc-10-20200329. The code looks fine.
I realized later that the versions of gcc I mentioned where I don't see this
problem are all from release branches. As described in
Assignee: unassigned at gcc dot gnu.org
Reporter: abrahm.scully at gmail dot com
Target Milestone: ---
with gcc-10-20200329 built on 32-bit CentOS 6, passing -m32 -march=pentium3
-mfpmath=sse -mstackrealign -O2 -ftree-vectorize -flto ... got the following.
/build/file.cpp:1510:1: error
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94494
--- Comment #2 from Abrahm Scully ---
Created attachment 48255
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48255&action=edit
preprocessed source file
With gcc-10-20200329, "g++ -Wall -ftree-vectorize -march=pentium3 -O2 -m32 -c
illegal-
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94494
--- Comment #3 from Abrahm Scully ---
Not sure if this is helpful, but "gcc -v" outputs:
Reading specs from /opt/tools-20200401/lib/gcc/i686-pc-linux-gnu/10/specs
COLLECT_GCC=/opt/tools-20200401/bin/gcc
COLLECT_LTO_WRAPPER=/opt/tools-20200401/lib
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87252
--- Comment #9 from Abrahm Scully ---
I'm no longer convinced that I didn't see the problem previously because I just
wasn't running the tests. Stage 1 has checking enabled... so I don't know why
this problem showed up for others in gcc 9 but not
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94494
--- Comment #5 from Abrahm Scully ---
I can't comment on the patch's correctness, but applied to gcc-10-20200405 it
does prevent the "unrecognizable insn" error.
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: abrahm.scully at gmail dot com
Target Milestone: ---
Created attachment 47648
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47648&action=edit
preprocessed source file
Running
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93254
--- Comment #2 from Abrahm Scully ---
(In reply to Uroš Bizjak from comment #1)
> The following patch that disables non-sse2 alternatives in *movsf_internal
> should fix the issue:
>
Uroš, thank you for the quick help! The patch does appear to
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96720
Abrahm Scully changed:
What|Removed |Added
CC||abrahm.scully at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96720
--- Comment #4 from Abrahm Scully ---
I think this bug should have keyword ice-on-valid-code and not
ice-on-invalid-code. The preprocessed source I attached to reproduce the issue
does not have the stray '*' in the original reproducer.
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