http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598
--- Comment #6 from Jack Howarth <howarth at nitro dot med.uc.edu> 2011-02-03
23:54:21 UTC ---
I see the same problem with current gcc trunk the patch to enable
-fgraphite-identity at -O2 on x86_64 Fedora 10 linux using...
../gcc/configure --with-gmp=/usr --with-mpfr=/usr --with-mpc=/usr
--prefix=/home/howarth/dist --enable-languages=c --enable-checking=yes
--with-cloog-include=/home/howarth/dist_cloog_isl/include
--with-cloog-lib=/home/howarth/dist_cloog_isl/lib
--with-ppl-include=/home/howarth/dist_ppl/include
--with-ppl-lib=/home/howarth/dist_ppl/lib --enable-cloog-backend=isl
--disable-lto --enable-languages=c --with-demangler-in-ld
make -j 8 profiledbootstrap
/home/howarth/work/./gcc/xgcc -B/home/howarth/work/./gcc/
-B/home/howarth/dist/x86_64-unknown-linux-gnu/bin/
-B/home/howarth/dist/x86_64-unknown-linux-gnu/lib/ -isystem
/home/howarth/dist/x86_64-unknown-linux-gnu/include -isystem
/home/howarth/dist/x86_64-unknown-linux-gnu/sys-include -g -O2 -m32 -O2 -g
-O2 -DIN_GCC -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes
-Wmissing-prototypes -Wold-style-definition -isystem ./include -fPIC -g
-DHAVE_GTHR_DEFAULT -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -fno-stack-protector
-I. -I. -I../../.././gcc -I../../../../gcc/libgcc -I../../../../gcc/libgcc/.
-I../../../../gcc/libgcc/../gcc -I../../../../gcc/libgcc/../include
-I../../../../gcc/libgcc/config/libbid -DENABLE_DECIMAL_BID_FORMAT
-DHAVE_CC_TLS -DUSE_TLS -o _gcov_merge_add.o -MT _gcov_merge_add.o -MD -MP -MF
_gcov_merge_add.dep -DL_gcov_merge_add -c
../../../../gcc/libgcc/../gcc/libgcov.c
../../../../gcc/libgcc/generic-morestack.c: In function ‘__morestack_fail’:
../../../../gcc/libgcc/generic-morestack.c:259:1: error: insn does not satisfy
its constraints:
(insn 107 105 108 10 (parallel [
(set (reg:SI 5 di [147])
(plus:SI (reg/v:SI 5 di [orig:83 i ] [83])
(plus:SI (reg/f:SI 7 sp)
(const_int 56 [0x38]))))
(clobber (reg:CC 17 flags))
]) ../../../../gcc/libgcc/generic-morestack.c:250 252 {*addsi_1}
(expr_list:REG_EQUIV (mem/s/f/c:SI (plus:SI (reg/f:SI 7 sp)
(const_int 40 [0x28])) [2 iov[1].iov_base+0 S4 A32])
(nil)))
../../../../gcc/libgcc/generic-morestack.c:259:1: internal compiler error: in
reload_cse_simplify_operands, at postreload.c:401
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
