[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598 Sebastian Pop changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #7 from Sebastian Pop --- Just completed a "make profiledbootstrap" on trunk with BOOT_CFLAGS="-g -O2 -fgraphite-identity -floop-nest-optimize" on an x86_64-linux machine.
[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598
--- Comment #6 from Jack Howarth 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 for instructions.
[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598 --- Comment #5 from Jack Howarth 2011-02-03 16:25:02 UTC --- (In reply to comment #4) > Can you create a standalone testcase to show this -fgraphite-identity -O2 bug? I think that will be rather difficult to achieve since the bug is occurring in the -fprofile-use stage requiring the generated profiles. I can check that this can also be observed on x86_64 linux though.
[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598
--- Comment #4 from H.J. Lu 2011-02-03 15:52:50
UTC ---
(In reply to comment #0)
> Enabling -fgraphite at -O2 with...
>
> /sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/./prev-gcc/xgcc
> -B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/./prev-gcc/
> -B/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/bin/
> -B/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/bin/
> -B/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/lib/ -isystem
> /sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/include -isystem
> /sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/sys-include-c -DHAVE_CONFIG_H -g
> -O2 -mdynamic-no-pic -flto=jobserver -frandom-seed=1 -fprofile-use -I.
> -I../../gcc-4.6-20110202/libiberty/../include -W -Wall -Wwrite-strings
> -Wc++-compat -Wstrict-prototypes -pedantic
> ../../gcc-4.6-20110202/libiberty/cp-demangle.c -o cp-demangle.o
> ../../gcc-4.6-20110202/libiberty/cp-demangle.c: In function 'd_print_comp':
> ../../gcc-4.6-20110202/libiberty/cp-demangle.c:4350:1: error: insn does not
> satisfy its constraints:
> (insn 1855 310 311 39 (parallel [
> (set (reg/f:DI 4 si [orig:719 dpi_17(D)->modifiers ] [719])
> (plus:DI (reg:DI 4 si [486])
> (plus:DI (reg/f:DI 7 sp)
> (const_int 0 [0]
> (clobber (reg:CC 17 flags))
> ]) ../../gcc-4.6-20110202/libiberty/cp-demangle.c:3611 253 {*adddi_1}
> (nil))
> ../../gcc-4.6-20110202/libiberty/cp-demangle.c:4350:1: internal compiler
> error:
> in reload_cse_simplify_operands, at postreload.c:401
Can you create a standalone testcase to show this -fgraphite-identity -O2 bug?
[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598
--- Comment #3 from Jack Howarth 2011-02-03
15:36:59 UTC ---
Without a lto-bootstrap, using just...
../gcc-4.6-20110202/configure --prefix=/sw --prefix=/sw/lib/gcc4.6
--mandir=/sw/share/man --infodir=/sw/lib/gcc4.6/info
--enable-languages=c,c++,fortran,lto,objc,obj-c++,java --with-gmp=/sw
--with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw
--with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib
--program-suffix=-fsf-4.6 --enable-checking=yes --enable-cloog-backend=isl
the profiledbootstrap with -fgraphite-identity at -O2 still fails but on a
different file...
/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/./prev-gcc/xgcc
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/./prev-gcc/
-B/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/bin/
-B/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/bin/
-B/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/lib/ -isystem
/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/include -isystem
/sw/lib/gcc4.6/x86_64-apple-darwin10.7.0/sys-include-c -DHAVE_CONFIG_H -g
-O2 -mdynamic-no-pic -fprofile-use -I.
-I../../gcc-4.6-20110202/libiberty/../include -W -Wall -Wwrite-strings
-Wc++-compat -Wstrict-prototypes -pedantic
../../gcc-4.6-20110202/libiberty/cp-demangle.c -o cp-demangle.o
../../gcc-4.6-20110202/libiberty/cp-demangle.c: In function 'd_print_comp':
../../gcc-4.6-20110202/libiberty/cp-demangle.c:4350:1: error: insn does not
satisfy its constraints:
(insn 1855 310 311 39 (parallel [
(set (reg/f:DI 4 si [orig:719 dpi_17(D)->modifiers ] [719])
(plus:DI (reg:DI 4 si [486])
(plus:DI (reg/f:DI 7 sp)
(const_int 0 [0]
(clobber (reg:CC 17 flags))
]) ../../gcc-4.6-20110202/libiberty/cp-demangle.c:3611 253 {*adddi_1}
(nil))
../../gcc-4.6-20110202/libiberty/cp-demangle.c:4350:1: internal compiler error:
in reload_cse_simplify_operands, at postreload.c:401
Please submit a full bug report,
with preprocessed source if appropriate.
See for instructions.
make[3]: *** [cp-demangle.o] Error 1
make[2]: *** [all-stagefeedback-libiberty] Error 2
make[1]: *** [stagefeedback-bubble] Error 2
make: *** [profiledbootstrap] Error 2
[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598 --- Comment #2 from Jack Howarth 2011-02-03 15:18:14 UTC --- I forgot to mention this was in... make[3]: *** [cp-demangle.o] Error 1 make[2]: *** [all-stagefeedback-libiberty] Error 2 make[1]: *** [stagefeedback-bubble] Error 2 make: *** [profiledbootstrap] Error 2
[Bug middle-end/47598] -fgraphite-identity at -O2 breaks profiledbootstrap
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47598 --- Comment #1 from Jack Howarth 2011-02-03 15:05:54 UTC --- ../gcc-4.6-20110202/configure --prefix=/sw --prefix=/sw/lib/gcc4.6 --mandir=/sw/share/man --infodir=/sw/lib/gcc4.6/info --with-build-config=bootstrap-lto --enable-stage1-languages=c,lto --enable-languages=c,c++,fortran,lto,objc,obj-c++,java --with-gmp=/sw --with-libiconv-prefix=/sw --with-ppl=/sw --with-cloog=/sw --with-mpc=/sw --with-system-zlib --x-includes=/usr/X11R6/include --x-libraries=/usr/X11R6/lib --program-suffix=-fsf-4.6 --enable-checking=yes --enable-cloog-backend=isl
