https://gcc.gnu.org/bugzilla/show_bug.cgi?id=115608
Bug ID: 115608
Summary: ICE in extract_insn, at recog.cc:2812 when building
with -mv8plus
Product: gcc
Version: 14.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: glaubitz at physik dot fu-berlin.de
CC: ebotcazou at gcc dot gnu.org, jrtc27 at jrtc27 dot com,
matorola at gmail dot com, sjames at gcc dot gnu.org
Target Milestone: ---
Target: sparc-linux-gnu
Support for the V8+ API seems to be broken in GCC as even trying to build a
simple program with "-mv8plus" fails:
(sid_sparc64-dchroot)glaubitz@stadler:~$ cat hello.c
#include <stdio.h>
int main () {
printf("Hello World!");
return 0;
}
(sid_sparc64-dchroot)glaubitz@stadler:~$ gcc-14 -mv8plus hello.c -o hello
hello.c: In function 'main':
hello.c:6:1: error: unrecognizable insn:
6 | }
| ^
(insn 6 5 7 2 (set (reg:DI 115)
(lo_sum:DI (reg:DI 115)
(unspec:DI [
(symbol_ref/f:SI ("*.LC0") [flags 0x2] <var_decl
0xfff8000101c305a0 *.LC0>)
] UNSPEC_MOVE_PIC))) "hello.c":4:3 -1
(nil))
during RTL pass: vregs
hello.c:6:1: internal compiler error: in extract_insn, at recog.cc:2812
0x4d60a7 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
../../src/gcc/rtl-error.cc:108
0x4d60d7 _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
../../src/gcc/rtl-error.cc:116
0xb3b21b extract_insn(rtx_insn*)
../../src/gcc/recog.cc:2812
0x9e29eb instantiate_virtual_regs_in_insn
../../src/gcc/function.cc:1612
0x9e29eb instantiate_virtual_regs
../../src/gcc/function.cc:1995
0x9e29eb execute
../../src/gcc/function.cc:2042
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <file:///usr/share/doc/gcc-14/README.Bugs> for instructions.
(sid_sparc64-dchroot)glaubitz@stadler:~$
