https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117296
Bug ID: 117296
Summary: ICE: in expand_gimple_basic_block, at
cfgexpand.cc:5896 with -mtune=k6
-mstringop-strategy=libcall -ffloat-store
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: i686-pc-linux-gnu
Created attachment 59438
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=59438&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -m32 -mtune=k6 -mstringop-strategy=libcall
-ffloat-store -O testcase.c
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:1:6: internal compiler error: in expand_gimple_basic_block, at
cfgexpand.cc:5896
1 | void foo(_Complex c) { l:; }
| ^~~
0x2c93fde internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:518
0xe835d5 fancy_abort(char const*, int, char const*)
/repo/gcc-trunk/gcc/diagnostic.cc:1580
0x760918 expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.cc:5896
0x103c3a7 execute
/repo/gcc-trunk/gcc/cfgexpand.cc:6901
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r15-4613-20241024181840-gf7bcdf44914-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/15.0.0/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r15-4613-20241024181840-gf7bcdf44914-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.0 20241024 (experimental) (GCC)
