After r187015 (Mar 31), gcc builds for rx-elf are failing with:
make[3]: Entering directory
`/greed/dj/m32c/gcc/rx-elf-head/rx-elf/64-bit-double/libgcc'
# If this is the top-level multilib, build all the other
# multilibs.
/greed/dj/m32c/gcc/rx-elf-head/./gcc/xgcc
-B/greed/dj/m32c/gcc/rx-elf-head/./gcc/ -B/greed/dj/m32c/install/rx-elf/bin/
-B/greed/dj/m32c/install/rx-elf/lib/ -isystem
/greed/dj/m32c/install/rx-elf/include -isystem
/greed/dj/m32c/install/rx-elf/sys-include -g -O2 -m64bit-doubles -O2 -g -O2
-DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wcast-qual
-Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem
./include -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector
-Dinhibit_libc -I. -I. -I../../.././gcc -I../../../../gcc/libgcc
-I../../../../gcc/libgcc/. -I../../../../gcc/libgcc/../gcc
-I../../../../gcc/libgcc/../include -DHAVE_CC_TLS -DUSE_EMUTLS -o _mulvdi3.o
-MT _mulvdi3.o -MD -MP -MF _mulvdi3.dep -DL_mulvdi3 -c
../../../../gcc/libgcc/libgcc2.c
../../../../gcc/libgcc/libgcc2.c: In function '__mulvdi3':
../../../../gcc/libgcc/libgcc2.c:397:1: internal compiler error: in
subreg_get_info, at rtlanal.c:3308
}
^
Can anyone else confirm this?
r187015 | rsandifo | 2012-05-01 10:45:24 -0400 (Tue, 01 May 2012) | 33 lines
gcc/
2012-03-31 Kenneth Zadeck <zad...@naturalbridge.com>
Richard Sandiford <r.sandif...@uk.ibm.com>
* Makefile.in (lower-subreg.o, target-globals.o): Depend on
lower-subreg.h.
* lower-subreg.h: New file.
* target-globals.h (this_target_lower_subreg): Declare.
(target_globals): Add lower_subreg;
(restore_target_globals): Restore this_target_lower_subreg.
* target-globals.c: Include it.
(default_target_globals): Add default_target_lower_subreg.
(save_target_globals): Initialize target_lower_subreg.
* rtl.h (init_lower_subreg): Added declaration.
* toplev.c (backend_init_target): Call initializer for lower-subreg
pass.
* lower-subreg.c (LOG_COSTS, FORCE_LOWERING): New macros.
(default_target_lower_subreg): New variable.
(this_target_lower_subreg): Likewise.
(twice_word_mode, choices): New macros.
(shift_cost, compute_splitting_shift, compute_costs)
(init_lower_subreg): New functions.
(resolve_simple_move): Add speed_p argument. Check choices.
(find_pseudo_copy): Don't check the mode size here.
(resolve_simple_move): Assert the mode size.
(find_decomposable_shift_zext): Add speed_p argument and return
a bool. Check choices.
(resolve_shift_zext): Add comment.
(dump_shift_choices, dump_choices): New functions.
(decompose_multiword_subregs): Dump list of profitable
transformations. Add code to skip non profitable transformations.
Update calls to simple_move and find_decomposable_shift_zext.
