https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105211
Bug ID: 105211
Summary: ICE: SIGSEGV in contains_struct_check (tree.h:3570)
with -Os -ffast-math and __builtin_roundf()
Product: gcc
Version: 12.0
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
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 52775
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52775&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -Os -ffast-math testcase.c -wrapper valgrind,-q
==23239== Invalid read of size 2
==23239== at 0xE330C0: contains_struct_check (tree.h:3570)
==23239== by 0xE330C0: build_call_nofold_loc(unsigned int, tree_node*, int,
...) (builtins.cc:2735)
==23239== by 0xE39B22: expand_builtin_int_roundingfn_2(tree_node*, rtx_def*)
(builtins.cc:2974)
==23239== by 0xE4A1AA: expand_builtin(tree_node*, rtx_def*, rtx_def*,
machine_mode, int) (builtins.cc:7085)
==23239== by 0xFAD188: expand_expr_real_1(tree_node*, rtx_def*,
machine_mode, expand_modifier, rtx_def**, bool) (expr.cc:11536)
==23239== by 0xFB9B3D: store_expr(tree_node*, rtx_def*, int, bool, bool)
(expr.cc:6087)
==23239== by 0xFBB3F0: expand_assignment(tree_node*, tree_node*, bool)
[clone .part.0] (expr.cc:5819)
==23239== by 0xE70EFC: expand_call_stmt (cfgexpand.cc:2829)
==23239== by 0xE70EFC: expand_gimple_stmt_1 (cfgexpand.cc:3869)
==23239== by 0xE70EFC: expand_gimple_stmt(gimple*) (cfgexpand.cc:4033)
==23239== by 0xE7730E: expand_gimple_basic_block(basic_block_def*, bool)
(cfgexpand.cc:6080)
==23239== by 0xE78F0F: (anonymous
namespace)::pass_expand::execute(function*) (cfgexpand.cc:6806)
==23239== by 0x128A17A: execute_one_pass(opt_pass*) (passes.cc:2638)
==23239== by 0x128AA3F: execute_pass_list_1(opt_pass*) (passes.cc:2738)
==23239== by 0x128AA78: execute_pass_list(function*, opt_pass*)
(passes.cc:2749)
==23239== Address 0x0 is not stack'd, malloc'd or (recently) free'd
==23239==
during RTL pass: expand
testcase.c: In function 'foo':
testcase.c:4:10: internal compiler error: Segmentation fault
4 | return __builtin_roundf (f);
| ^~~~~~~~~~~~~~~~~~~~
0x13928ff crash_signal
/repo/gcc-trunk/gcc/toplev.cc:322
0xe330c0 contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
/repo/gcc-trunk/gcc/tree.h:3570
0xe330c0 build_call_nofold_loc
/repo/gcc-trunk/gcc/builtins.cc:2735
0xe39b22 expand_builtin_int_roundingfn_2
/repo/gcc-trunk/gcc/builtins.cc:2974
0xe4a1aa expand_builtin(tree_node*, rtx_def*, rtx_def*, machine_mode, int)
/repo/gcc-trunk/gcc/builtins.cc:7085
0xfad188 expand_expr_real_1(tree_node*, rtx_def*, machine_mode,
expand_modifier, rtx_def**, bool)
/repo/gcc-trunk/gcc/expr.cc:11536
0xfb9b3d store_expr(tree_node*, rtx_def*, int, bool, bool)
/repo/gcc-trunk/gcc/expr.cc:6087
0xfbb3f0 expand_assignment(tree_node*, tree_node*, bool)
/repo/gcc-trunk/gcc/expr.cc:5819
0xe70efc expand_call_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:2829
0xe70efc expand_gimple_stmt_1
/repo/gcc-trunk/gcc/cfgexpand.cc:3869
0xe70efc expand_gimple_stmt
/repo/gcc-trunk/gcc/cfgexpand.cc:4033
0xe7730e expand_gimple_basic_block
/repo/gcc-trunk/gcc/cfgexpand.cc:6080
0xe78f0f execute
/repo/gcc-trunk/gcc/cfgexpand.cc:6806
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-r12-8072-20220410001634-g71cac7de8f1-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-r12-8072-20220410001634-g71cac7de8f1-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220410 (experimental) (GCC)
