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* [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv
@ 2024-02-03 10:21 zsojka at seznam dot cz
2024-02-03 21:44 ` [Bug middle-end/113738] " pinskia at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: zsojka at seznam dot cz @ 2024-02-03 10:21 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113738
Bug ID: 113738
Summary: [14 Regression] ICE: in df_reg_chain_verify_unmarked,
at df-scan.cc:4001 with -O2 -march=rv64gcv
Product: gcc
Version: 14.0
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: riscv64-unknown-linux-gnu
Created attachment 57305
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57305&action=edit
reduced testcase (from gcc.dg/torture/pr45764.c)
Compiler output:
$ riscv64-unknown-linux-gnu-gcc -O2 -march=rv64gcv testcase.c
during RTL pass: rtl_dce
testcase.c: In function 'foo':
testcase.c:7:1: internal compiler error: in df_reg_chain_verify_unmarked, at
df-scan.cc:4001
7 | }
| ^
0xa138ee df_reg_chain_verify_unmarked
/repo/gcc-trunk/gcc/df-scan.cc:4001
0xa15111 df_reg_chain_verify_unmarked
/repo/gcc-trunk/gcc/df-scan.cc:4218
0xa15111 df_scan_verify()
/repo/gcc-trunk/gcc/df-scan.cc:4264
0x11f06d1 df_verify()
/repo/gcc-trunk/gcc/df-core.cc:1834
0x11f06d1 df_analyze_1
/repo/gcc-trunk/gcc/df-core.cc:1221
0x29de3d5 init_dce
/repo/gcc-trunk/gcc/dce.cc:763
0x29e103d rest_of_handle_fast_dce
/repo/gcc-trunk/gcc/dce.cc:1193
0x29e103d execute
/repo/gcc-trunk/gcc/dce.cc:1290
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.
$ riscv64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-riscv64/bin/riscv64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8771-20240203001826-g4b7d4d8a4af-checking-yes-rtl-df-extra-riscv64/bin/../libexec/gcc/riscv64-unknown-linux-gnu/14.0.1/lto-wrapper
Target: riscv64-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-isa-spec=2.2
--with-sysroot=/usr/riscv64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=riscv64-unknown-linux-gnu
--with-ld=/usr/bin/riscv64-unknown-linux-gnu-ld
--with-as=/usr/bin/riscv64-unknown-linux-gnu-as --disable-multilib
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-8771-20240203001826-g4b7d4d8a4af-checking-yes-rtl-df-extra-riscv64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240203 (experimental) (GCC)
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/113738] [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv
2024-02-03 10:21 [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv zsojka at seznam dot cz
@ 2024-02-03 21:44 ` pinskia at gcc dot gnu.org
2024-02-03 21:46 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-02-03 21:44 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113738
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu.org
Target Milestone|--- |14.0
Component|target |middle-end
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/113738] [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv
2024-02-03 10:21 [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv zsojka at seznam dot cz
2024-02-03 21:44 ` [Bug middle-end/113738] " pinskia at gcc dot gnu.org
@ 2024-02-03 21:46 ` pinskia at gcc dot gnu.org
2024-03-06 19:57 ` law at gcc dot gnu.org
2024-03-06 20:22 ` law at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: pinskia at gcc dot gnu.org @ 2024-02-03 21:46 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113738
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Note this only shows up with DF checking ...
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/113738] [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv
2024-02-03 10:21 [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv zsojka at seznam dot cz
2024-02-03 21:44 ` [Bug middle-end/113738] " pinskia at gcc dot gnu.org
2024-02-03 21:46 ` pinskia at gcc dot gnu.org
@ 2024-03-06 19:57 ` law at gcc dot gnu.org
2024-03-06 20:22 ` law at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: law at gcc dot gnu.org @ 2024-03-06 19:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113738
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2024-03-06
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug middle-end/113738] [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv
2024-02-03 10:21 [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv zsojka at seznam dot cz
` (2 preceding siblings ...)
2024-03-06 19:57 ` law at gcc dot gnu.org
@ 2024-03-06 20:22 ` law at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: law at gcc dot gnu.org @ 2024-03-06 20:22 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113738
Jeffrey A. Law <law at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Jeffrey A. Law <law at gcc dot gnu.org> ---
This was fixed on the trunk by Juzhe a while back:
commit d29136ad3282905145e24d7ec10b6efe4ab5d2f1
Author: Juzhe-Zhong <juzhe.zhong@rivai.ai>
Date: Tue Feb 6 07:12:24 2024 +0800
RISC-V: Fix infinite compilation of VSETVL PASS
This patch fixes issue reported by Jeff.
Testing is running. Ok for trunk if I passed the testing with no regression
?
gcc/ChangeLog:
* config/riscv/riscv-vsetvl.cc (pre_vsetvl::emit_vsetvl): Fix
inifinite compilation.
(pre_vsetvl::remove_vsetvl_pre_insns): Ditto.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2024-02-03 10:21 [Bug target/113738] New: [14 Regression] ICE: in df_reg_chain_verify_unmarked, at df-scan.cc:4001 with -O2 -march=rv64gcv zsojka at seznam dot cz
2024-02-03 21:44 ` [Bug middle-end/113738] " pinskia at gcc dot gnu.org
2024-02-03 21:46 ` pinskia at gcc dot gnu.org
2024-03-06 19:57 ` law at gcc dot gnu.org
2024-03-06 20:22 ` law at gcc dot gnu.org
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