https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110627
Bug ID: 110627
Summary: m68k: “Tried to convert PC relative branch to absolute
jump” while building iconvdata/iso-2022-jp.c from
glibc
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: fw at gcc dot gnu.org
Target Milestone: ---
Target: m68k-linux-gnu-coldfire-soft
Created attachment 55521
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55521&action=edit
iso-2022-jp.i
The attached source file fails in assembly with:
Fatal error: Tried to convert PC relative branch to absolute jump
when building with “-O2 -fpic” or “-O2 -fPIC”.
GCC was configured like this (trunk sources from today):
/home/bmg/src/gcc/configure
--prefix=/home/bmg/install/compilers/m68k-linux-gnu-coldfire-soft
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=m68k-glibc-linux-gnu
--with-sysroot=/home/bmg/install/compilers/m68k-linux-gnu-coldfire-soft/sysroot
--with-arch=cf --with-cpu=54455 --disable-multilib --enable-initfini-array
--disable-libssp --disable-libcilkrts
--with-gmp=/home/bmg/install/host-libraries
--with-mpfr=/home/bmg/install/host-libraries
--with-mpc=/home/bmg/install/host-libraries --enable-languages=c
--disable-shared --disable-threads --disable-libatomic --disable-decimal-float
--disable-gcov --disable-libffi --disable-libgomp --disable-libitm
--disable-libmpx --disable-libquadmath --disable-libsanitizer --without-headers
--with-newlib --with-glibc-version=2.37
As a workaround, I tried “-O2 -fpic -mpcrel“, but this ICEs:
during RTL pass: sched2
In file included from iso-2022-jp.c:1033:
../iconv/skeleton.c: In function ‘gconv’:
../iconv/skeleton.c:663:1: internal compiler error: in sched_attr_op_type, at
config/m68k/m68k.cc:6123
0x741144 sched_attr_op_type
/home/bmg/src/gcc/gcc/config/m68k/m68k.cc:6123
0x11ba2d1 m68k_sched_attr_opy_type(rtx_insn*, int)
/home/bmg/src/gcc/gcc/config/m68k/m68k.cc:6180
0x11b0564 sched_get_opxy_mem_type
/home/bmg/src/gcc/gcc/config/m68k/m68k.cc:6354
0x11ba32e m68k_sched_attr_op_mem(rtx_insn*)
/home/bmg/src/gcc/gcc/config/m68k/m68k.cc:6387
0x14cd471 internal_dfa_insn_code(rtx_insn*)
/home/bmg/src/gcc/gcc/config/m68k/m68k.md:154
0x14c9334 dfa_insn_code
/home/bmg/build/compilers/m68k-linux-gnu-coldfire-soft/gcc-first/gcc/insn-automata.cc:4146
0x14c9334 insn_has_dfa_reservation_p(rtx_insn*)
/home/bmg/build/compilers/m68k-linux-gnu-coldfire-soft/gcc-first/gcc/insn-automata.cc:4788
0x11b1cac m68k_sched_md_init_global
/home/bmg/src/gcc/gcc/config/m68k/m68k.cc:6714
0x15d1c2f sched_init()
/home/bmg/src/gcc/gcc/haifa-sched.cc:7354
0x15d33fc haifa_sched_init()
/home/bmg/src/gcc/gcc/haifa-sched.cc:7368
0xdf7ffa schedule_insns()
/home/bmg/src/gcc/gcc/sched-rgn.cc:3524
0xdf86fd schedule_insns()
/home/bmg/src/gcc/gcc/sched-rgn.cc:3518
0xdf86fd rest_of_handle_sched2
/home/bmg/src/gcc/gcc/sched-rgn.cc:3756
0xdf86fd execute
/home/bmg/src/gcc/gcc/sched-rgn.cc:3895
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.
