https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123528
Bug ID: 123528
Summary: [16 Regression] ICE: tree check: expected none of
vector_type, have vector_type in build_int_cst, at
tree.cc:1651 at -O2
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-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 63316
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63316&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 testcase.c
during GIMPLE pass: slp
testcase.c: In function 'foo':
testcase.c:11:1: internal compiler error: tree check: expected none of
vector_type, have vector_type in build_int_cst, at tree.cc:1651
11 | foo()
| ^~~
0x2c916cd internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:787
0x9284e2 tree_not_check_failed(tree_node const*, char const*, int, char const*,
...)
/repo/gcc-trunk/gcc/tree.cc:9229
0x931a60 tree_not_check(tree_node*, char const*, int, char const*, tree_code)
/repo/gcc-trunk/gcc/tree.h:3769
0x931a60 build_int_cst(tree_node*, poly_int<1u, long>)
/repo/gcc-trunk/gcc/tree.cc:1651
0x2bd568c vect_recog_bool_pattern
/repo/gcc-trunk/gcc/tree-vect-patterns.cc:6026
0x2bd7720 vect_pattern_recog_1
/repo/gcc-trunk/gcc/tree-vect-patterns.cc:7641
0x2bdbbb1 vect_pattern_recog(vec_info*)
/repo/gcc-trunk/gcc/tree-vect-patterns.cc:7762
0x19a3e7f vect_slp_analyze_bb_1
/repo/gcc-trunk/gcc/tree-vect-slp.cc:10203
0x19a3e7f vect_slp_region
/repo/gcc-trunk/gcc/tree-vect-slp.cc:10312
0x19a3e7f vect_slp_bbs
/repo/gcc-trunk/gcc/tree-vect-slp.cc:10535
0x19a6e91 vect_slp_function(function*)
/repo/gcc-trunk/gcc/tree-vect-slp.cc:10657
0x19b2bd5 execute
/repo/gcc-trunk/gcc/tree-vectorizer.cc:1571
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-20260109220321-r16-6670-g0a98b1a6ac91cb-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/16.0.0/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 --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-20260109220321-r16-6670-g0a98b1a6ac91cb-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 16.0.0 20260108 (experimental) (GCC)
