https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115321
Bug ID: 115321
Summary: [15 regression] ICE when building grub (extract_insn,
at recog.cc:2812)
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: sjames at gcc dot gnu.org
Target Milestone: ---
Created attachment 58326
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=58326&action=edit
pgp_module-pgp.i
```
$ gcc -c ./commands/pgp_module-pgp.i -m32 -march=i386
In file included from
/var/tmp/portage/sys-boot/grub-2.12-r4/work/grub-2.12/grub-core/commands/pgp.c:19:
/var/tmp/portage/sys-boot/grub-2.12-r4/work/grub-2.12/include/grub/types.h: In
function ‘grub_swap_bytes32’:
/var/tmp/portage/sys-boot/grub-2.12-r4/work/grub-2.12/include/grub/types.h:218:1:
error: unrecognizable insn:
218 | }
| ^
(insn 5 2 6 2 (set (reg:SI 101)
(ior:SI (and:SI (mem/c:SI (reg/f:SI 92 virtual-incoming-args) [2 x+0 S4
A32])
(const_int -65536 [0xffffffffffff0000]))
(lshiftrt:SI (bswap:SI (mem/c:SI (reg/f:SI 92
virtual-incoming-args) [2 x+0 S4 A32]))
(const_int 16 [0x10]))))
"/var/tmp/portage/sys-boot/grub-2.12-r4/work/grub-2.12/include/grub/types.h":217:9
-1
(nil))
during RTL pass: vregs
/var/tmp/portage/sys-boot/grub-2.12-r4/work/grub-2.12/include/grub/types.h:218:1:
internal compiler error: in extract_insn, at recog.cc:2812
0x565212e8b58d _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/rtl-error.cc:108
0x565212e8ca9a _fatal_insn_not_found(rtx_def const*, char const*, int, char
const*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/rtl-error.cc:116
0x5652124c38e5 extract_insn(rtx_insn*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/recog.cc:2812
0x565213bbfa20 instantiate_virtual_regs_in_insn
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/function.cc:1612
0x565213bbfa20 instantiate_virtual_regs
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/function.cc:1995
0x565213bbf715 execute
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/function.cc:2042
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://bugs.gentoo.org/> for instructions.
```
```
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/15/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/configure
--host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --prefix=/usr
--bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/15
--includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include
--datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15
--mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/man
--infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/15/info
--with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/g++-v15
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/15/python
--enable-languages=c,c++,fortran,rust --enable-obsolete --enable-secureplt
--disable-werror --with-system-zlib --enable-nls --without-included-gettext
--disable-libunwind-exceptions --enable-checking=yes,extra,rtl
--with-bugurl=https://bugs.gentoo.org/ --with-pkgversion='Gentoo Hardened
15.0.9999 p, commit 9a866462097fe24696c924a3874fd307c775e860'
--with-gcc-major-version-only --enable-libstdcxx-time --enable-lto
--disable-libstdcxx-pch --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-multilib
--with-multilib-list=m32,m64 --disable-fixed-point --enable-targets=all
--enable-libgomp --disable-libssp --disable-libada --disable-cet
--disable-systemtap --enable-valgrind-annotations --disable-vtable-verify
--disable-libvtv --with-zstd --with-isl --disable-isl-version-check
--enable-default-pie --enable-host-pie --enable-host-bind-now
--enable-default-ssp --disable-fixincludes --with-build-config='bootstrap-O3
bootstrap-lto'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20240601 (experimental)
85f15ea65a97686ad39af0c14b7dd9a9372e3a19 (Gentoo Hardened 15.0.9999 p, commit
9a866462097fe24696c924a3874fd307c775e860)
```
