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* [Bug c/111935] New: gcc ICE with risc-v vector intrinsics
@ 2023-10-23 12:52 julienpommier at free dot fr
2023-10-23 17:08 ` [Bug target/111935] " pinskia at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: julienpommier at free dot fr @ 2023-10-23 12:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935
Bug ID: 111935
Summary: gcc ICE with risc-v vector intrinsics
Product: gcc
Version: 13.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: julienpommier at free dot fr
Target Milestone: ---
The following code (test.c) crashes the riscv gcc 13.2.0 compiler of ubuntu
23.10:
#include <riscv_vector.h>
inline vuint32m4_t __attribute__((__always_inline__)) transpose_indexes() {
static const uint32_t idx_[16] = {0, 4, 8, 12,
1, 5, 9, 13,
2, 6, 10, 14,
3, 7, 11, 15};
return __riscv_vle32_v_u32m4(idx_, 16);
}
void pffft_real_preprocess_4x4(const float *in) {
vfloat32m1_t r0=__riscv_vle32_v_f32m1(in,4);
vfloat32m4_t tmp = __riscv_vundefined_f32m4();
tmp = __riscv_vset_v_f32m1_f32m4(tmp, 0, r0);
tmp = __riscv_vset_v_f32m1_f32m4(tmp, 1, r0);
tmp = __riscv_vset_v_f32m1_f32m4(tmp, 2, r0);
tmp = __riscv_vset_v_f32m1_f32m4(tmp, 3, r0);
tmp = __riscv_vrgather_vv_f32m4(tmp, transpose_indexes(), 16);
r0 = __riscv_vget_v_f32m4_f32m1(tmp, 0);
}
when compiled with:
riscv64-linux-gnu-gcc-13 -O1 -march=rv64gcv -c testcase.c
the output is:
during RTL pass: expand
test.c: In function ‘pffft_real_preprocess_4x4’:
test.c:19:8: internal compiler error: Segmentation fault
19 | r0 = __riscv_vget_v_f32m4_f32m1(tmp, 0);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0xffffae3a7583 __libc_start_call_main
../sysdeps/nptl/libc_start_call_main.h:58
0xffffae3a7657 __libc_start_main_impl
../csu/libc-start.c:360
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-13/README.Bugs> for instructions.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/111935] gcc ICE with risc-v vector intrinsics
2023-10-23 12:52 [Bug c/111935] New: gcc ICE with risc-v vector intrinsics julienpommier at free dot fr
@ 2023-10-23 17:08 ` pinskia at gcc dot gnu.org
2023-10-24 7:48 ` cvs-commit at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-10-23 17:08 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-10-23
Status|UNCONFIRMED |NEW
Ever confirmed|0 |1
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed, still happens on the trunk.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/111935] gcc ICE with risc-v vector intrinsics
2023-10-23 12:52 [Bug c/111935] New: gcc ICE with risc-v vector intrinsics julienpommier at free dot fr
2023-10-23 17:08 ` [Bug target/111935] " pinskia at gcc dot gnu.org
@ 2023-10-24 7:48 ` cvs-commit at gcc dot gnu.org
2023-10-31 2:50 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-10-24 7:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935
--- Comment #2 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Li Xu <xuli@gcc.gnu.org>:
https://gcc.gnu.org/g:b44d4ff7b43ff6a34d5c074c7ade03c4a38974fa
commit r14-4879-gb44d4ff7b43ff6a34d5c074c7ade03c4a38974fa
Author: xuli <xuli1@eswincomputing.com>
Date: Tue Oct 24 07:39:02 2023 +0000
RISC-V: Fix ICE of RVV vget/vset intrinsic[PR111935]
Calling vget/vset intrinsic without receiving a return value will cause
a crash. Because in this case e.target is null.
This patch should be backported to releases/gcc-13.
PR target/111935
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins-bases.cc: fix bug.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/pr111935.c: New test.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/111935] gcc ICE with risc-v vector intrinsics
2023-10-23 12:52 [Bug c/111935] New: gcc ICE with risc-v vector intrinsics julienpommier at free dot fr
2023-10-23 17:08 ` [Bug target/111935] " pinskia at gcc dot gnu.org
2023-10-24 7:48 ` cvs-commit at gcc dot gnu.org
@ 2023-10-31 2:50 ` cvs-commit at gcc dot gnu.org
2024-02-17 3:30 ` aoliva at gcc dot gnu.org
2024-04-24 8:59 ` kito at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2023-10-31 2:50 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935
--- Comment #3 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The releases/gcc-13 branch has been updated by Li Xu <xuli@gcc.gnu.org>:
https://gcc.gnu.org/g:b22b845834f8bdc4e18d95b4f36ba702c01ed5f8
commit r13-7996-gb22b845834f8bdc4e18d95b4f36ba702c01ed5f8
Author: xuli <xuli1@eswincomputing.com>
Date: Tue Oct 24 07:39:02 2023 +0000
RISC-V: Fix ICE of RVV vget/vset intrinsic[PR111935]
Calling vget/vset intrinsic without receiving a return value will cause
a crash. Because in this case e.target is null.
This patch should be backported to releases/gcc-13.
PR target/111935
gcc/ChangeLog:
* config/riscv/riscv-vector-builtins-bases.cc: fix bug.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/rvv/base/pr111935.c: New test.
(cherry picked from commit b44d4ff7b43ff6a34d5c074c7ade03c4a38974fa)
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/111935] gcc ICE with risc-v vector intrinsics
2023-10-23 12:52 [Bug c/111935] New: gcc ICE with risc-v vector intrinsics julienpommier at free dot fr
` (2 preceding siblings ...)
2023-10-31 2:50 ` cvs-commit at gcc dot gnu.org
@ 2024-02-17 3:30 ` aoliva at gcc dot gnu.org
2024-04-24 8:59 ` kito at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: aoliva at gcc dot gnu.org @ 2024-02-17 3:30 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935
Alexandre Oliva <aoliva at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |aoliva at gcc dot gnu.org
--- Comment #4 from Alexandre Oliva <aoliva at gcc dot gnu.org> ---
Does the test pass in gcc-13 for anyone? ISTM that it doesn't. I bisected it
and got to commit 973eb0deb467c79cc21f265a710a81054cfd3e8c AKA r14-3535, for
bug 110943, as the first in which the test generates the expected number of
matches of the vs... pattern.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug target/111935] gcc ICE with risc-v vector intrinsics
2023-10-23 12:52 [Bug c/111935] New: gcc ICE with risc-v vector intrinsics julienpommier at free dot fr
` (3 preceding siblings ...)
2024-02-17 3:30 ` aoliva at gcc dot gnu.org
@ 2024-04-24 8:59 ` kito at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: kito at gcc dot gnu.org @ 2024-04-24 8:59 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111935
Kito Cheng <kito at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |FIXED
CC| |kito at gcc dot gnu.org
--- Comment #5 from Kito Cheng <kito at gcc dot gnu.org> ---
Checked this has fixed on trunk and GCC 13 branch
^ permalink raw reply [flat|nested] 6+ messages in thread
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2023-10-23 12:52 [Bug c/111935] New: gcc ICE with risc-v vector intrinsics julienpommier at free dot fr
2023-10-23 17:08 ` [Bug target/111935] " pinskia at gcc dot gnu.org
2023-10-24 7:48 ` cvs-commit at gcc dot gnu.org
2023-10-31 2:50 ` cvs-commit at gcc dot gnu.org
2024-02-17 3:30 ` aoliva at gcc dot gnu.org
2024-04-24 8:59 ` kito at gcc dot gnu.org
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