https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114044
Bug ID: 114044
Summary: ICE: in expand_fn_using_insn, at internal-fn.cc:208
with _BitInt() and -O -fno-tree-dce
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: rtl-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
CC: jakub at gcc dot gnu.org
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57489
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57489&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O -fno-tree-dce testcase.c
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:5:7: internal compiler error: in expand_fn_using_insn, at
internal-fn.cc:208
5 | 5 | __builtin_stdc_bit_floor(ub256_0) & 4;
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0x79b2a7 expand_fn_using_insn
/repo/gcc-trunk/gcc/internal-fn.cc:208
0xf83d8f expand_call_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:2771
0xf83d8f expand_gimple_stmt_1
/repo/gcc-trunk/gcc/cfgexpand.cc:3932
0xf83d8f expand_gimple_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:4077
0xf8a2fe expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.cc:6133
0xf8bfd7 execute
/repo/gcc-trunk/gcc/cfgexpand.cc:6872
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-r14-9117-20240221083607-g5772ea772d1-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/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 --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-9117-20240221083607-g5772ea772d1-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240221 (experimental) (GCC)
