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* [Bug target/106404] New: [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1
@ 2022-07-22 7:57 zsojka at seznam dot cz
2022-07-22 8:01 ` [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869 marxin at gcc dot gnu.org
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: zsojka at seznam dot cz @ 2022-07-22 7:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106404
Bug ID: 106404
Summary: [13 Regression] ICE: in extract_insn, at recog.cc:2791
(unrecognizable insn) with -O2 -fno-dce
--param=max-cse-insns=1
Product: gcc
Version: 13.0
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 53334
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53334&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -fno-dce --param=max-cse-insns=1 testcase.c
testcase.c: In function 'foo':
testcase.c:15:1: error: unrecognizable insn:
15 | }
| ^
(insn 214 133 139 4 (set (reg:V1TI 238)
(reg:TI 193)) "testcase.c":13:5 -1
(expr_list:REG_UNUSED (reg:V1TI 238)
(nil)))
during RTL pass: subreg3
testcase.c:15:1: internal compiler error: in extract_insn, at recog.cc:2791
0x7782b8 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.cc:108
0x77833b _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/repo/gcc-trunk/gcc/rtl-error.cc:116
0x766bed extract_insn(rtx_insn*)
/repo/gcc-trunk/gcc/recog.cc:2791
0x2494c77 decompose_multiword_subregs
/repo/gcc-trunk/gcc/lower-subreg.cc:1555
0x2495d9d execute
/repo/gcc-trunk/gcc/lower-subreg.cc:1820
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
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-r13-1791-20220722100642-g1cc0e9a46e7-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/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
--disable-bootstrap --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-r13-1791-20220722100642-g1cc0e9a46e7-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20220722 (experimental) (GCC)
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869
2022-07-22 7:57 [Bug target/106404] New: [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 zsojka at seznam dot cz
@ 2022-07-22 8:01 ` marxin at gcc dot gnu.org
2022-07-22 8:08 ` rguenth at gcc dot gnu.org
2022-07-22 8:23 ` roger at nextmovesoftware dot com
2 siblings, 0 replies; 4+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-07-22 8:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106404
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Ever confirmed|0 |1
Last reconfirmed| |2022-07-22
CC| |marxin at gcc dot gnu.org,
| |sayle at gcc dot gnu.org
Summary|[13 Regression] ICE: in |[13 Regression] ICE: in
|extract_insn, at |extract_insn, at
|recog.cc:2791 |recog.cc:2791
|(unrecognizable insn) with |(unrecognizable insn) with
|-O2 -fno-dce |-O2 -fno-dce
|--param=max-cse-insns=1 |--param=max-cse-insns=1
| |since
| |r13-1607-gc3ed9e0d6e96d869
Status|UNCONFIRMED |NEW
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r13-1607-gc3ed9e0d6e96d869.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869
2022-07-22 7:57 [Bug target/106404] New: [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 zsojka at seznam dot cz
2022-07-22 8:01 ` [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869 marxin at gcc dot gnu.org
@ 2022-07-22 8:08 ` rguenth at gcc dot gnu.org
2022-07-22 8:23 ` roger at nextmovesoftware dot com
2 siblings, 0 replies; 4+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-07-22 8:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106404
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |13.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869
2022-07-22 7:57 [Bug target/106404] New: [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 zsojka at seznam dot cz
2022-07-22 8:01 ` [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869 marxin at gcc dot gnu.org
2022-07-22 8:08 ` rguenth at gcc dot gnu.org
@ 2022-07-22 8:23 ` roger at nextmovesoftware dot com
2 siblings, 0 replies; 4+ messages in thread
From: roger at nextmovesoftware dot com @ 2022-07-22 8:23 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106404
Roger Sayle <roger at nextmovesoftware dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |roger at nextmovesoftware dot com
Resolution|--- |DUPLICATE
Status|NEW |RESOLVED
--- Comment #2 from Roger Sayle <roger at nextmovesoftware dot com> ---
I can confirm that this failure is (will be) fixed by the patch for PR 106303
(thanks to H.J. Lu) that I'm currently bootstrapping and regression testing.
*** This bug has been marked as a duplicate of bug 106303 ***
^ permalink raw reply [flat|nested] 4+ messages in thread
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2022-07-22 7:57 [Bug target/106404] New: [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 zsojka at seznam dot cz
2022-07-22 8:01 ` [Bug target/106404] [13 Regression] ICE: in extract_insn, at recog.cc:2791 (unrecognizable insn) with -O2 -fno-dce --param=max-cse-insns=1 since r13-1607-gc3ed9e0d6e96d869 marxin at gcc dot gnu.org
2022-07-22 8:08 ` rguenth at gcc dot gnu.org
2022-07-22 8:23 ` roger at nextmovesoftware dot com
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