[Bug target/98491] [MIPS] ICE: in mode_size_inline, with -mmsa

2024-02-05 Thread xry111 at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98491

Xi Ruoyao  changed:

   What|Removed |Added

 Resolution|--- |FIXED
   Target Milestone|--- |11.0
 Status|UNCONFIRMED |RESOLVED

--- Comment #4 from Xi Ruoyao  ---
All unfixed branches are closed.

[Bug target/98491] [MIPS] ICE: in mode_size_inline, with -mmsa

2021-02-17 Thread cvs-commit at gcc dot gnu.org via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98491

--- Comment #3 from CVS Commits  ---
The master branch has been updated by Richard Sandiford :

https://gcc.gnu.org/g:06505e701dcfdb1b9855601d6cf0aa1caea62975

commit r11-7264-g06505e701dcfdb1b9855601d6cf0aa1caea62975
Author: Xi Ruoyao 
Date:   Wed Feb 17 11:57:13 2021 +

mips: Avoid out-of-bounds access in mips_symbol_insns [PR98491]

An invalid use of MSA_SUPPORTED_MODE_P was causing an ICE on
mips64el with -mmsa.  The detailed analysis is posted on bugzilla.

gcc/ChangeLog:

2021-02-17  Xi Ruoyao  

PR target/98491
* config/mips/mips.c (mips_symbol_insns): Do not use
MSA_SUPPORTED_MODE_P if mode is MAX_MACHINE_MODE.

[Bug target/98491] [MIPS] ICE: in mode_size_inline, with -mmsa

2020-12-31 Thread xry111 at mengyan1223 dot wang via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98491

--- Comment #2 from Xi Ruoyao  ---
Patch proposed:

https://gcc.gnu.org/pipermail/gcc-patches/2020-December/562629.html

[Bug target/98491] [MIPS] ICE: in mode_size_inline, with -mmsa

2020-12-31 Thread xry111 at mengyan1223 dot wang via Gcc-bugs 
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98491

--- Comment #1 from Xi Ruoyao  ---
It can be reproduced with a cross build on x86_64-linux, with asan:

$ ../gcc/configure --target=mips64el-unknown-linux-gnuabi64 --with-abi=64 
--enable-languages=c,c++ --with-system-zlib
(build log skipped)
$ ASAN_OPTIONS=detect_leaks=0:use_odr_indicator=1 make all-gcc
{C,CXX,LD}FLAGS="-O0 -g3 -ggdb -fsanitize=address -static-libasan"  -j 4
(build log skipped)
$ gcc/cc1 ~/bug.c -nostdinc -mmsa
 f
Analyzing compilation unit
Performing interprocedural optimizations
 <*free_lang_data> {heap 0 }  {heap 0 }  {heap 0
}  {heap 0 }  {heap 0 }  {heap 0
}  {heap 0 }Streaming LTO
  {heap 0 }  {heap 0 }  {heap 0 } 
{heap 0 }  {heap 0 }  {heap 0 }  {heap 0
}Assembling functions:
 f=
==257274==ERROR: AddressSanitizer: global-buffer-overflow on address
0x0521e70a at pc 0x02c535c1 bp 0x7ffc1ac50930 sp 0x7ffc1ac50928
READ of size 2 at 0x0521e70a thread T0
#0 0x2c535c0 in mode_to_bytes(machine_mode) ../../gcc/gcc/machmode.h:550
#1 0x2c535c0 in mips_symbol_insns ../../gcc/gcc/config/mips/mips.c:2384
#2 0x2c591fc in mips_const_insns(rtx_def*)
../../gcc/gcc/config/mips/mips.c:2895

(more asan output skipped)