https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124086
Bug ID: 124086
Summary: [16 Regression] during GIMPLE pass: cplxlower: ICE:
verify_gimple failed: 'vector_cst' as base where
non-register is required at -O1 with _Complex long
double and vector
Product: gcc
Version: 16.0
Status: UNCONFIRMED
Keywords: ice-on-valid-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 63659
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63659&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O testcase.c -Wno-psabi
testcase.c: In function 'foo':
testcase.c:11:1: error: 'vector_cst' as base where non-register is required
11 | foo()
| ^~~
{ 0, -13, 0, 0, 0, 0, 0, 0 }
_2 = REALPART_EXPR <VIEW_CONVERT_EXPR<complex long double>({ 0, -13, 0, 0, 0,
0, 0, 0 })>;
during GIMPLE pass: cplxlower
testcase.c:11:1: internal compiler error: verify_gimple failed
0x2ca0ebd internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:787
0x169534d verify_gimple_in_cfg(function*, bool, bool)
/repo/gcc-trunk/gcc/tree-cfg.cc:5599
0x14def5a execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2100
0x14df497 execute_todo
/repo/gcc-trunk/gcc/passes.cc:2152
/repo/gcc-trunk/binary-trunk-20260213011632-r16-7493-gefc76a7f339c23-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/16.0.1/cc1
-quiet -iprefix
/repo/gcc-trunk/binary-trunk-20260213011632-r16-7493-gefc76a7f339c23-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../lib/gcc/x86_64-pc-linux-gnu/16.0.1/
testcase.c -quiet -dumpdir a- -dumpbase testcase.c -dumpbase-ext .c
-mtune=generic -march=x86-64 -O -Wno-psabi -o /tmp/cceAZRLR.s
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-20260213011632-r16-7493-gefc76a7f339c23-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/16.0.1/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 --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-20260213011632-r16-7493-gefc76a7f339c23-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 16.0.1 20260213 (experimental) (GCC)
