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* [Bug target/103894] New: ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2
@ 2022-01-03 5:32 zsojka at seznam dot cz
2022-01-03 8:50 ` [Bug target/103894] [12 Regression] " jakub at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: zsojka at seznam dot cz @ 2022-01-03 5:32 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103894
Bug ID: 103894
Summary: ICE: in emit_move_multi_word, at expr.c:3870 with
-mno-sse2
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 52110
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52110&action=edit
reduced testcase
This seems to be a recent regression.
Compiler output:
$ x86_64-pc-linux-gnu-gcc -mno-sse2 testcase.c
during RTL pass: reload
testcase.c: In function 'foo':
testcase.c:9:1: internal compiler error: in emit_move_multi_word, at
expr.c:3870
9 | }
| ^
0x6c6c3b emit_move_multi_word
/repo/gcc-trunk/gcc/expr.c:3870
0xfa3d0b gen_move_insn(rtx_def*, rtx_def*)
/repo/gcc-trunk/gcc/expr.c:4145
0x11ade8d curr_insn_transform
/repo/gcc-trunk/gcc/lra-constraints.c:4214
0x11af026 lra_constraints(bool)
/repo/gcc-trunk/gcc/lra-constraints.c:5161
0x1199994 lra(_IO_FILE*)
/repo/gcc-trunk/gcc/lra.c:2336
0x114c429 do_reload
/repo/gcc-trunk/gcc/ira.c:5932
0x114c429 execute
/repo/gcc-trunk/gcc/ira.c:6118
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-6173-20220102211314-g9ff206d3865-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.0/lto-wrapper
Target: x86_64-pc-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 --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu
--with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-6173-20220102211314-g9ff206d3865-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.0 20220102 (experimental) (GCC)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/103894] [12 Regression] ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2
2022-01-03 5:32 [Bug target/103894] New: ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2 zsojka at seznam dot cz
@ 2022-01-03 8:50 ` jakub at gcc dot gnu.org
2022-01-03 11:04 ` ubizjak at gmail dot com
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: jakub at gcc dot gnu.org @ 2022-01-03 8:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103894
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2022-01-03
Summary|ICE: in |[12 Regression] ICE: in
|emit_move_multi_word, at |emit_move_multi_word, at
|expr.c:3870 with -mno-sse2 |expr.c:3870 with -mno-sse2
Target Milestone|--- |12.0
Ever confirmed|0 |1
CC| |jakub at gcc dot gnu.org,
| |uros at gcc dot gnu.org
Priority|P3 |P1
--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Started with r12-6173-g9ff206d3865df5cb8407490aa9481029beac087f
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/103894] [12 Regression] ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2
2022-01-03 5:32 [Bug target/103894] New: ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2 zsojka at seznam dot cz
2022-01-03 8:50 ` [Bug target/103894] [12 Regression] " jakub at gcc dot gnu.org
@ 2022-01-03 11:04 ` ubizjak at gmail dot com
2022-01-03 19:59 ` cvs-commit at gcc dot gnu.org
2022-01-03 20:28 ` ubizjak at gmail dot com
3 siblings, 0 replies; 5+ messages in thread
From: ubizjak at gmail dot com @ 2022-01-03 11:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103894
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |ubizjak at gmail dot com
--- Comment #2 from Uroš Bizjak <ubizjak at gmail dot com> ---
Created attachment 52111
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52111&action=edit
Proposed patch
Patch in testing.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/103894] [12 Regression] ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2
2022-01-03 5:32 [Bug target/103894] New: ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2 zsojka at seznam dot cz
2022-01-03 8:50 ` [Bug target/103894] [12 Regression] " jakub at gcc dot gnu.org
2022-01-03 11:04 ` ubizjak at gmail dot com
@ 2022-01-03 19:59 ` cvs-commit at gcc dot gnu.org
2022-01-03 20:28 ` ubizjak at gmail dot com
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-01-03 19:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103894
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Uros Bizjak <uros@gcc.gnu.org>:
https://gcc.gnu.org/g:1096ab1775636f35de9c6661f8f71f03299af998
commit r12-6194-g1096ab1775636f35de9c6661f8f71f03299af998
Author: Uros Bizjak <ubizjak@gmail.com>
Date: Mon Jan 3 20:58:16 2022 +0100
i386: Always enable mov<V_32:mode> patterns [PR103894]
Middle end tries to generate V4QImode moves to implement V2QImode inserts
and calls emit_move_multi_word when V4QImode moves are unavailable, as is
the case with 32-bit vector moves, constrainted with TARGET_SSE2.
However, this triggers
gcc_assert (mode_size >= UNITS_PER_WORD);
in emit_move_multi_word, since mode_size of V4QImode operand is less than
UNITS_PER_WORD of 64-bit targets.
The patch unconditionally enables 32-bit vector moves to match 16-bit
vector moves. This also enables implementation of 32-bit vector logic
operations with GPR in a follow-up patch.
2022-01-03 Uroš Bizjak <ubizjak@gmail.com>
gcc/ChangeLog:
PR target/103894
* config/i386/mmx.md (mov<V_32:mode>): Remove TARGET_SSE2
constraint.
(mov<V_32:mode>_internal): Ditto.
(*push<V_32:mode>_rex64): Ditto.
(movmisalign<V_32:mode>): Ditto.
(*push<V_32:mode>_rex64 splitter): Enable for
TARGET_64BIT && TARGET_SSE.
(*push<V_32:mode>2): Remove insn pattern.
gcc/testsuite/ChangeLog:
PR target/103894
* gcc.target/i386/pr103894.c: New test.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug target/103894] [12 Regression] ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2
2022-01-03 5:32 [Bug target/103894] New: ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2 zsojka at seznam dot cz
` (2 preceding siblings ...)
2022-01-03 19:59 ` cvs-commit at gcc dot gnu.org
@ 2022-01-03 20:28 ` ubizjak at gmail dot com
3 siblings, 0 replies; 5+ messages in thread
From: ubizjak at gmail dot com @ 2022-01-03 20:28 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103894
Uroš Bizjak <ubizjak at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #4 from Uroš Bizjak <ubizjak at gmail dot com> ---
Fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2022-01-03 5:32 [Bug target/103894] New: ICE: in emit_move_multi_word, at expr.c:3870 with -mno-sse2 zsojka at seznam dot cz
2022-01-03 8:50 ` [Bug target/103894] [12 Regression] " jakub at gcc dot gnu.org
2022-01-03 11:04 ` ubizjak at gmail dot com
2022-01-03 19:59 ` cvs-commit at gcc dot gnu.org
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