Hi,
After this commit, GCC build fails for ARM targets:
--target=arm-none-eabi --with-mode=arm --with-cpu=cortex-a9 --with-fpu=neon
/obj-arm-none-eabi/gcc1/./gcc/xgcc -B/obj-arm-none-eabi/gcc1/./gcc/
-B/tools/arm-none-eabi/bin/ -B/tools/arm-none-eabi/lib/ -isystem
/tools/arm-none-eabi/include -isystem /tools/arm-none-eabi/sys-include
-g -O2 -mfloat-abi=hard -O2 -g -O2 -DIN_GCC
-DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -isystem ./include -fno-inline -g
-DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -Dinhibit_libc
-fno-inline -I. -I. -I../../.././gcc -I/trunk/libgcc -I/trunk/libgcc/.
-I/trunk/libgcc/../gcc -I/trunk/libgcc/../include -DHAVE_CC_TLS -o
_mulhelperDQ.o -MT _mulhelperDQ.o -MD -MP -MF _mulhelperDQ.dep
-DL_mulhelper -DDQ_MODE -c /trunk/libgcc/fixed-bit.c
-fvisibility=hidden -DHIDE_EXPORTS
/trunk/libgcc/fixed-bit.c: In function '__gnu_mulhelperdq':
/trunk/libgcc/fixed-bit.c:371:1: error: unable to generate reloads for:
}
^
(insn 55 63 59 2 (set (reg:DI 124 [ D.7630 ])
(mult:DI (zero_extend:DI (subreg:SI (reg:DI 112 [ D.7628 ]) 4))
(zero_extend:DI (subreg:SI (reg:DI 111 [ D.7628 ]) 4))))
/trunk/libgcc/fixed-bit.c:307 54 {*umulsidi3_v6}
(nil))
/trunk/libgcc/fixed-bit.c:371:1: internal compiler error: in
curr_insn_transform, at lra-constraints.c:3383
0x9d4875 _fatal_insn(char const*, rtx_def const*, char const*, int, char const*)
/trunk/gcc/rtl-error.c:110
0x904ec4 curr_insn_transform
/trunk/gcc/lra-constraints.c:3383
0x9057ce lra_constraints(bool)
/trunk/gcc/lra-constraints.c:4324
0x8f5eb1 lra(_IO_FILE*)
/trunk/gcc/lra.c:2277
0x8b4959 do_reload
/trunk/gcc/ira.c:5391
0x8b4959 execute
/trunk/gcc/ira.c:5561
Please submit a full bug report,
Can you have a look?
Thanks,
Christophe.
On 12 December 2014 at 21:12, Vladimir Makarov <vmaka...@redhat.com> wrote:
> The following patch fixes
>
> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64110
>
> The patch was successfully tested and bootstrapped on x86/x86-64.
>
> Committed as rev. 218688.
>
> 2014-12-12 Vladimir Makarov <vmaka...@redhat.com>
>
> PR target/64110
> * lra-constraints.c (process_alt_operands): Refuse alternative
> when reload pseudo of given class can not hold value of given
> mode.
>
> 2014-12-12 Vladimir Makarov <vmaka...@redhat.com>
>
> PR target/64110
> * gcc.target/i386/pr64110.c: New.
>
