https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113699
Bug ID: 113699
Summary: during GIMPLE pass: bitintlower ICE: SIGSEGV in
var_to_partition (tree-ssa-live.h:163) with _BitInt()
used in __asm__
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-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 57276
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57276&action=edit
reduced testcase (from gcc.target/i386/pr41985.c)
Compiler output:
$ x86_64-pc-linux-gnu-gcc testcase.c -wrapper valgrind,-q
==30321== Invalid read of size 8
==30321== at 0x271DC7F: var_to_partition (tree-ssa-live.h:163)
==30321== by 0x271DC7F: lower_asm (gimple-lower-bitint.cc:5203)
==30321== by 0x271DC7F: (anonymous
namespace)::bitint_large_huge::lower_stmt(gimple*)
(gimple-lower-bitint.cc:5240)
==30321== by 0x2720009: gimple_lower_bitint() (gimple-lower-bitint.cc:6564)
==30321== by 0x13CDCBA: execute_one_pass(opt_pass*) (passes.cc:2646)
==30321== by 0x13CE5AF: execute_pass_list_1(opt_pass*) (passes.cc:2755)
==30321== by 0x13CE5E8: execute_pass_list(function*, opt_pass*)
(passes.cc:2766)
==30321== by 0xFCDC05: expand (cgraphunit.cc:1843)
==30321== by 0xFCDC05: cgraph_node::expand() (cgraphunit.cc:1796)
==30321== by 0xFCEB19: output_in_order (cgraphunit.cc:2193)
==30321== by 0xFCEB19: symbol_table::compile() [clone .part.0]
(cgraphunit.cc:2397)
==30321== by 0xFD1AC7: compile (cgraphunit.cc:2313)
==30321== by 0xFD1AC7: symbol_table::finalize_compilation_unit()
(cgraphunit.cc:2585)
==30321== by 0x150FF61: compile_file() (toplev.cc:474)
==30321== by 0xDE840B: do_compile (toplev.cc:2152)
==30321== by 0xDE840B: toplev::main(int, char**) (toplev.cc:2308)
==30321== by 0xDE9BEA: main (main.cc:39)
==30321== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==30321==
during GIMPLE pass: bitintlower0
testcase.c: In function 'foo':
testcase.c:2:1: internal compiler error: Segmentation fault
2 | foo (void)
| ^~~
0x150fa7f crash_signal
/repo/gcc-trunk/gcc/toplev.cc:317
0x271dc7f var_to_partition(_var_map*, tree_node*)
/repo/gcc-trunk/gcc/tree-ssa-live.h:163
0x271dc7f lower_asm
/repo/gcc-trunk/gcc/gimple-lower-bitint.cc:5203
0x271dc7f lower_stmt
/repo/gcc-trunk/gcc/gimple-lower-bitint.cc:5240
0x2720009 gimple_lower_bitint
/repo/gcc-trunk/gcc/gimple-lower-bitint.cc:6564
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
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-8665-20240131161256-g3fed1609f61-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-r14-8665-20240131161256-g3fed1609f61-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240131 (experimental) (GCC)
