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From: "malat at debian dot org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/109244] New: internal compiler error: in
 setup_preferred_alternate_classes_for_new_pseudos, at ira.cc:2892
Date: Wed, 22 Mar 2023 07:22:18 +0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D109244

            Bug ID: 109244
           Summary: internal compiler error: in
                    setup_preferred_alternate_classes_for_new_pseudos, at
                    ira.cc:2892
           Product: gcc
           Version: 13.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: malat at debian dot org
  Target Milestone: ---

Created attachment 54726
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=3D54726&action=3Dedit
Preprocessed source

I cannot compile highway project on riscv64/Debian. It fails with:

hwy/contrib/sort/vqsort-inl.h:1386:1: internal compiler error: in
setup_preferred_alternate_classes_for_new_pseudos, at ira.cc:2892

Compilation line:

/usr/lib/gcc-snapshot/bin/g++ -freport-bug -DHWY_SHARED_DEFINE
-Dhwy_contrib_EXPORTS -I/home/mathieu/debian/highway -g -O2
-ffile-prefix-map=3D/home/mathieu/debian/highway=3D. -fstack-protector-stro=
ng
-Wformat -Werror=3Dformat-security -DHWY_BROKEN_EMU128=3D0 -Wdate-time
-D_FORTIFY_SOURCE=3D2 -fPIC -fvisibility=3Dhidden -fvisibility-inlines-hidd=
en
-Wno-builtin-macro-redefined -D__DATE__=3D\"redacted\"
-D__TIMESTAMP__=3D\"redacted\" -D__TIME__=3D\"redacted\" -fmerge-all-consta=
nts
-Wall -Wextra -Wconversion -Wsign-conversion -Wvla -Wnon-virtual-dtor
-fmath-errno -fno-exceptions -march=3Drv64gcv1p0 -Werror -MD -MT
CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_f32d.cc.o -MF
CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_f32d.cc.o.d -o
CMakeFiles/hwy_contrib.dir/hwy/contrib/sort/vqsort_f32d.cc.o -c
/home/mathieu/debian/highway/hwy/contrib/sort/vqsort_f32d.cc=