https://gcc.gnu.org/bugzilla/show_bug.cgi?id=93335
Bug ID: 93335
Summary: [9/10 Regression] ICE: in extract_insn, at
recog.c:2310 with __builtin_sub_overflow_p() on
aarch64
Product: gcc
Version: 10.0
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: aarch64-unknown-linux-gnu
Created attachment 47685
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=47685&action=edit
reduced testcase
Compiler output:
$ aarch64-unknown-linux-gnu-gcc testcase.c
testcase.c: In function 'foo':
testcase.c:7:1: error: unrecognizable insn:
7 | }
| ^
(insn 13 12 14 2 (parallel [
(set (reg:CC 66 cc)
(compare:CC (subreg:DI (reg:TI 101) 0)
(const_int 13299 [0x33f3])))
(set (reg:DI 104)
(plus:DI (subreg:DI (reg:TI 101) 0)
(const_int -13299 [0xffffffffffffcc0d])))
]) "testcase.c":6:10 -1
(nil))
during RTL pass: vregs
testcase.c:7:1: internal compiler error: in extract_insn, at recog.c:2294
0x754329 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
/repo/gcc-trunk/gcc/rtl-error.c:108
0x7543ac _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
/repo/gcc-trunk/gcc/rtl-error.c:116
0x744e3b extract_insn(rtx_insn*)
/repo/gcc-trunk/gcc/recog.c:2294
0xd5d9d7 instantiate_virtual_regs_in_insn
/repo/gcc-trunk/gcc/function.c:1656
0xd5d9d7 instantiate_virtual_regs
/repo/gcc-trunk/gcc/function.c:1977
0xd5d9d7 execute
/repo/gcc-trunk/gcc/function.c:2026
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.
$ aarch64-unknown-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-20200120111030-92ce93c743b-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/10.0.1/lto-wrapper
Target: aarch64-unknown-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/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-20200120111030-92ce93c743b-checking-yes-rtl-df-extra-aarch64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.0.1 20200120 (experimental) (GCC)
