https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116925
Bug ID: 116925
Summary: [15 regression] ICE when building newton-3.14 with
-march=znver2
Product: gcc
Version: 15.0
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 59253
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59253&action=edit
dgAABBPolygonSoup.cpp.ii.xz
Originally reported downstream in Gentoo at https://bugs.gentoo.org/940610.
```
$ g++ ./sdk/CMakeFiles/NewtonObj.dir/dgCore/dgAABBPolygonSoup.cpp.ii
-march=znver2 -O2 -ffloat-store
/var/tmp/portage/dev-games/newton-3.14/work/newton-dynamics-newton-3.14/sdk/dgCore/dgAABBPolygonSoup.cpp:
In member function ‘virtual void dgAABBPolygonSoup::ForAllSectorsRayHit(const
dgFastRayTest&, dgFloat32, dgRayIntersectCallback, void*) const’:
/var/tmp/portage/dev-games/newton-3.14/work/newton-dynamics-newton-3.14/sdk/dgCore/dgAABBPolygonSoup.cpp:1187:1:
error: unrecognizable insn:
1187 | }
| ^
(insn 996 998 122 3 (set (reg:V4SF 297)
(unspec:V4SF [
(mem:V4SF (plus:DI (reg/f:DI 19 frame)
(const_int -7520 [0xffffffffffffe2a0])) [28 S16 A128])
(reg:V4SF 294)
] UNSPEC_IEEE_MAX))
"/usr/lib/gcc/x86_64-pc-linux-gnu/15/include/xmmintrin.h":259:10 -1
(expr_list:REG_EQUIV (mem:V4SF (plus:DI (reg/f:DI 19 frame)
(const_int -7328 [0xffffffffffffe360])) [28 S16 A128])
(expr_list:REG_DEAD (reg:V4SF 294)
(nil))))
during RTL pass: ira
/var/tmp/portage/dev-games/newton-3.14/work/newton-dynamics-newton-3.14/sdk/dgCore/dgAABBPolygonSoup.cpp:1187:1:
internal compiler error: in extract_insn, at recog.cc:2882
0x5bd4dd881fc0 internal_error(char const*, ...)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic-global-context.cc:517
0x5bd4dd88215b fancy_abort(char const*, int, char const*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic.cc:1570
0x5bd4dd0a7d7e _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
0x5bd4dd0a866b _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
0x5bd4dc4f7379 extract_insn(rtx_insn*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/recog.cc:2882
0x5bd4de069bf5 ira_remove_insn_scratches(rtx_insn*, bool, _IO_FILE*, rtx_def*
(*)(rtx_def*))
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ira.cc:5385
0x5bd4de069bf5 remove_scratches
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ira.cc:5429
0x5bd4de069bf5 ira
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ira.cc:5761
0x5bd4de069bf5 execute
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/ira.cc:6121
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-objc-gc --enable-languages=c,c++,d,go,objc,obj-c++,fortran,ada,m2,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
4dffefc137f5ba6524cdb6eb598313646c5df6c8' --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 --enable-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 20241001 (experimental)
3e1bd6470e4deba1a3ad14621037098311ad1350 (Gentoo Hardened 15.0.9999 p, commit
4dffefc137f5ba6524cdb6eb598313646c5df6c8)
```
