https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123799
Bug ID: 123799
Summary: [16 Regression] ICE: verify_gimple failed: invalid
types in conversion to floating-point with -O3
-mavx10.1
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 63476
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=63476&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O3 -mavx10.1 testcase.c
testcase.c: In function 'foo':
testcase.c:19:1: error: invalid types in conversion to floating-point
19 | foo ()
| ^~~
vector(2) double
vector(2) _BitInt(64)
_25 = (vector(2) double) _24;
during GIMPLE pass: forwprop
testcase.c:19:1: internal compiler error: verify_gimple failed
0x2c9872d internal_error(char const*, ...)
/repo/gcc-trunk/gcc/diagnostic-global-context.cc:787
0x1691dcd verify_gimple_in_cfg(function*, bool, bool)
/repo/gcc-trunk/gcc/tree-cfg.cc:5599
0x14dc0ba execute_function_todo
/repo/gcc-trunk/gcc/passes.cc:2100
0x14dc5f7 execute_todo
/repo/gcc-trunk/gcc/passes.cc:2152
/repo/gcc-trunk/binary-trunk-20260122132957-r16-6976-gbadd64289a496c-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-20260122132957-r16-6976-gbadd64289a496c-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 -mavx10.1
-mtune=generic -march=x86-64 -O3 -o /tmp/cckZ3ilt.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-20260123202222-r16-7007-g7edd9284a6a981-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-20260123202222-r16-7007-g7edd9284a6a981-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 16.0.1 20260123 (experimental) (GCC)
