https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115969
Bug ID: 115969
Summary: [15 regression] ICE when building clang-16.0.6 on
arm64 (output_operand: invalid expression as operand)
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: ---
I don't yet have a guess for which change causes this. I should really stamp
builds with the last GCC commit each package built with...
```
$ g++ -c ./lib/Sema/CMakeFiles/obj.clangSema.dir/SemaExpr.cpp.ii -O3
-fno-vect-cost-model -fPIC
during RTL pass: final
In file included from
/var/tmp/portage/sys-devel/clang-16.0.6/work/clang/lib/Sema/SemaExpr.cpp:13:
/var/tmp/portage/sys-devel/clang-16.0.6/work/clang/lib/Sema/TreeTransform.h: In
member function ‘clang::QualType
clang::TreeTransform<Derived>::TransformType(clang::TypeLocBuilder&,
clang::TypeLoc) [with Derived = EnsureImmediateInvocationInDefaultArgs]’:
/var/tmp/portage/sys-devel/clang-16.0.6/work/clang/lib/Sema/TreeTransform.h:4823:1:
internal compiler error: output_operand: invalid expression as operand
4823 | }
| ^
0xaaaad29586bf internal_error(char const*, ...)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/diagnostic-global-context.cc:491
0xaaaad0bbd623 output_operand_lossage(char const*, ...)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:3189
0xaaaad0bbdd07 output_address(machine_mode, rtx_def*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:3647
0xaaaad0bbdbeb output_operand(rtx_def*, int)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:3631
0xaaaad0bbef67 output_asm_insn(char const*, rtx_def**)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:3543
0xaaaad0bc1fd3 output_asm_insn(char const*, rtx_def**)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:3420
0xaaaad0bc1fd3 final_scan_insn_1
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:2840
0xaaaad0bc439f final_scan_insn(rtx_insn*, _IO_FILE*, int, int, int*)
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:2886
0xaaaad0bc439f final_1
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:1977
0xaaaad0bc498b rest_of_handle_final
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:4239
0xaaaad0bc498b execute
/usr/src/debug/sys-devel/gcc-15.0.9999/gcc-15.0.9999/gcc/final.cc:4317
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/aarch64-unknown-linux-gnu/15/lto-wrapper
Target: aarch64-unknown-linux-gnu
Configured with:
/var/tmp/portage/sys-devel/gcc-15.0.9999/work/gcc-15.0.9999/configure
--host=aarch64-unknown-linux-gnu --build=aarch64-unknown-linux-gnu
--prefix=/usr --bindir=/usr/aarch64-unknown-linux-gnu/gcc-bin/15
--includedir=/usr/lib/gcc/aarch64-unknown-linux-gnu/15/include
--datadir=/usr/share/gcc-data/aarch64-unknown-linux-gnu/15
--mandir=/usr/share/gcc-data/aarch64-unknown-linux-gnu/15/man
--infodir=/usr/share/gcc-data/aarch64-unknown-linux-gnu/15/info
--with-gxx-include-dir=/usr/lib/gcc/aarch64-unknown-linux-gnu/15/include/g++-v15
--disable-silent-rules --disable-dependency-tracking
--with-python-dir=/share/gcc-data/aarch64-unknown-linux-gnu/15/python
--enable-languages=c,c++,fortran --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 f3f27691478a0b256a3b52348bae96f5a6b5f089'
--with-gcc-major-version-only --enable-libstdcxx-time --enable-lto
--disable-libstdcxx-pch --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --disable-multilib
--disable-fixed-point --enable-libgomp --disable-libssp --disable-libada
--disable-standard-branch-protection --disable-systemtap
--disable-valgrind-annotations --disable-vtable-verify --disable-libvtv
--with-zstd --without-isl --enable-default-pie --enable-host-pie
--enable-host-bind-now --enable-default-ssp --disable-fixincludes
--with-build-config=bootstrap-O3
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20240717 (experimental)
f438299ef6860b8233ffe1c5fda7d63f2f6c56ae (Gentoo Hardened 15.0.9999 p, commit
f3f27691478a0b256a3b52348bae96f5a6b5f089)
```
