https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89903
Bug ID: 89903
Summary: [9 Regression] ICE: in convert_op, at
config/i386/i386.c:2102 with -O2 -march=skylake
Product: gcc
Version: 9.0
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: i686-pc-linux-gnu
Created attachment 46066
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46066&action=edit
reduced testcase
This triggers also after PR89848 and PR89827 fix.
Compiler output:
$ i686-pc-linux-gnu-gcc -O2 -march=skylake testcase.c
during RTL pass: stv
testcase.c: In function 'foo':
testcase.c:10:1: internal compiler error: in convert_op, at
config/i386/i386.c:2102
10 | }
| ^
0x721607 dimode_scalar_chain::convert_op(rtx_def**, rtx_insn*)
/repo/gcc-trunk/gcc/config/i386/i386.c:2102
0x117cc0c dimode_scalar_chain::convert_insn(rtx_insn*)
/repo/gcc-trunk/gcc/config/i386/i386.c:2171
0x117d064 scalar_chain::convert()
/repo/gcc-trunk/gcc/config/i386/i386.c:2412
0x117d064 scalar_chain::convert()
/repo/gcc-trunk/gcc/config/i386/i386.c:2396
0x117db1c convert_scalars_to_vector
/repo/gcc-trunk/gcc/config/i386/i386.c:2478
0x117db1c execute
/repo/gcc-trunk/gcc/config/i386/i386.c:2596
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ i686-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-i686/bin/i686-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-270053-checking-yes-rtl-df-extra-i686/bin/../libexec/gcc/i686-pc-linux-gnu/9.0.1/lto-wrapper
Target: i686-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 --with-sysroot=/usr/i686-pc-linux-gnu
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=i686-pc-linux-gnu --with-ld=/usr/bin/i686-pc-linux-gnu-ld
--with-as=/usr/bin/i686-pc-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-270053-checking-yes-rtl-df-extra-i686
Thread model: posix
gcc version 9.0.1 20190401 (experimental) (GCC)
