https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104453
Bug ID: 104453
Summary: [9/10/11/12 Regression] ICE: SIGSEGV in
handled_component_p with truncated input
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-invalid-code
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 52382
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52382&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -mavx512f testcase.c -wrapper valgrind,-q
testcase.c: In function 'foo':
testcase.c:7:33: error: expected ')' at end of input
7 | __builtin_ia32_psrawi256 (g, 0
| ~ ^
| )
testcase.c:7:3: error: expected declaration or statement at end of input
7 | __builtin_ia32_psrawi256 (g, 0
| ^~~~~~~~~~~~~~~~~~~~~~~~
==13315== Invalid read of size 2
==13315== at 0x1062CC4: handled_component_p (tree.h:5069)
==13315== by 0x1062CC4: get_base_loadstore(tree_node*) (gimple-walk.cc:732)
==13315== by 0x1063B70: walk_stmt_load_store_addr_ops(gimple*, void*, bool
(*)(gimple*, tree_node*, tree_node*, void*), bool (*)(gimple*, tree_node*,
tree_node*, void*), bool (*)(gimple*, tree_node*, tree_node*, void*))
(gimple-walk.cc:765)
==13315== by 0xEA8CBA: record_stmt_references (cgraphbuild.cc:263)
==13315== by 0xEA8CBA: (anonymous
namespace)::pass_build_cgraph_edges::execute(function*) (cgraphbuild.cc:330)
==13315== by 0x127E0DA: execute_one_pass(opt_pass*) (passes.cc:2637)
==13315== by 0x127E99F: execute_pass_list_1(opt_pass*) (passes.cc:2737)
==13315== by 0x127E9D8: execute_pass_list(function*, opt_pass*)
(passes.cc:2748)
==13315== by 0xEAB0FB: cgraph_node::analyze() (cgraphunit.cc:685)
==13315== by 0xEADF97: analyze_functions(bool) (cgraphunit.cc:1240)
==13315== by 0xEAEC2D: symbol_table::finalize_compilation_unit()
(cgraphunit.cc:2500)
==13315== by 0x1386F3F: compile_file() (toplev.cc:479)
==13315== by 0xCF54E8: do_compile (toplev.cc:2158)
==13315== by 0xCF54E8: toplev::main(int, char**) (toplev.cc:2310)
==13315== by 0xCF6C0A: main (main.cc:39)
==13315== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==13315==
during GIMPLE pass: *build_cgraph_edges
testcase.c:5:1: internal compiler error: Segmentation fault
5 | foo (void)
| ^~~
0x1386c7f crash_signal
/repo/gcc-trunk/gcc/toplev.cc:322
0x1062cc4 handled_component_p
/repo/gcc-trunk/gcc/tree.h:5069
0x1062cc4 get_base_loadstore
/repo/gcc-trunk/gcc/gimple-walk.cc:732
0x1063b70 walk_stmt_load_store_addr_ops(gimple*, void*, bool (*)(gimple*,
tree_node*, tree_node*, void*), bool (*)(gimple*, tree_node*, tree_node*,
void*), bool (*)(gimple*, tree_node*, tree_node*, void*))
/repo/gcc-trunk/gcc/gimple-walk.cc:765
0xea8cba cgraph_node::record_stmt_references(gimple*)
/repo/gcc-trunk/gcc/cgraphbuild.cc:263
0xea8cba execute
/repo/gcc-trunk/gcc/cgraphbuild.cc:330
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-r12-7089-20220208123931-g0103c2e4082-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.1/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
--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-r12-7089-20220208123931-g0103c2e4082-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220208 (experimental) (GCC)
