https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106640
Bug ID: 106640
Summary: [13 Regression] during RTL pass: stv ICE: RTL check:
expected elt 1 type 'i' or 'n', have 'e' (rtx ashift)
in compute_convert_gain, at
config/i386/i386-features.cc:1251/1285
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
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 53464
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=53464&action=edit
reduced testcase
Might need RTL checking enabled.
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 testcase.c -Wno-psabi
during RTL pass: stv
testcase.c: In function 'foo':
testcase.c:9:1: internal compiler error: RTL check: expected elt 1 type 'i' or
'n', have 'e' (rtx ashiftrt) in compute_convert_gain, at
config/i386/i386-features.cc:1285
9 | }
| ^
0x77aa03 rtl_check_failed_type2(rtx_def const*, int, int, int, char const*,
int, char const*)
/repo/gcc-trunk/gcc/rtl.cc:907
0x854675 compute_convert_gain
/repo/gcc-trunk/gcc/config/i386/i386-features.cc:1285
0x183ddcf convert_scalars_to_vector
/repo/gcc-trunk/gcc/config/i386/i386-features.cc:2225
0x183ddcf execute
/repo/gcc-trunk/gcc/config/i386/i386-features.cc:2389
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=/mnt/main-repo/repo/gcc-trunk/binary-trunk-r13-2065-20220816100512-g1c596391e15-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/13.0.0/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
--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-r13-2065-20220816100512-g1c596391e15-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 13.0.0 20220816 (experimental) (GCC)
Happens with the pr106577 patch as well.
