https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104664
Bug ID: 104664
Summary: ICE: in extract_constrain_insn, at recog.cc:2670 (insn
does not satisfy its constraints) with -Og
-ffinite-math-only
Product: gcc
Version: 12.0
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 52499
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=52499&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -Og -ffinite-math-only testcase.c
testcase.c: In function 'foo':
testcase.c:13:1: error: insn does not satisfy its constraints:
13 | }
| ^
(insn 180 179 186 2 (set (reg:V8HF 27 xmm7 [220])
(reg:V8HF 0 ax)) "testcase.c":12:5 1706 {movv8hf_internal}
(nil))
during RTL pass: reload
testcase.c:13:1: internal compiler error: in extract_constrain_insn, at
recog.cc:2670
0x768521 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.cc:108
0x7685a7 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/repo/gcc-trunk/gcc/rtl-error.cc:118
0x7574d0 extract_constrain_insn(rtx_insn*)
/repo/gcc-trunk/gcc/recog.cc:2670
0x11aaec4 check_rtl
/repo/gcc-trunk/gcc/lra.cc:2095
0x11afd0b lra(_IO_FILE*)
/repo/gcc-trunk/gcc/lra.cc:2513
0x115fdd9 do_reload
/repo/gcc-trunk/gcc/ira.cc:5940
0x115fdd9 execute
/repo/gcc-trunk/gcc/ira.cc:6126
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-r12-7361-20220223135143-gfdc46830f1b-checking-yes-rtl-df-extra-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/12.0.1/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
--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-r12-7361-20220223135143-gfdc46830f1b-checking-yes-rtl-df-extra-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220223 (experimental) (GCC)
