http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49827
Summary: [4.7 regression] sparc64-linux bootstrap failure due
to ICE in dwarf2cfi.c connect_traces
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: bootstrap
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: mi...@it.uu.se
Created attachment 24818
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24818
reduced test case, ICEs with -O -g
gcc-4.7-20110723 fails to build on sparc64-linux:
/tmp/objdir/./gcc/xgcc -B/tmp/objdir/./gcc/
-B/home/mikpe/pkgs/linux-x86/cross-sparc64/sparc64-unknown-linux/bin/
-B/home/mikpe/pkgs/linux-x86/cross-sparc64/sparc64-unknown-linux/lib/ -isystem
/home/mikpe/pkgs/linux-x86/cross-sparc64/sparc64-unknown-linux/include -isystem
/home/mikpe/pkgs/linux-x86/cross-sparc64/sparc64-unknown-linux/sys-include
-g -O2 -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall
-Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes
-Wold-style-definition -isystem ./include -fPIC -g -DHAVE_GTHR_DEFAULT
-DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector -Dinhibit_libc -I. -I.
-I../.././gcc -I/tmp/gcc-4.7-20110723/libgcc -I/tmp/gcc-4.7-20110723/libgcc/.
-I/tmp/gcc-4.7-20110723/libgcc/../gcc -I/tmp/gcc-4.7-20110723/libgcc/../include
-DHAVE_CC_TLS -o _lshrdi3.o -MT _lshrdi3.o -MD -MP -MF _lshrdi3.dep
-DL_lshrdi3 -c /tmp/gcc-4.7-20110723/libgcc/../gcc/libgcc2.c \
/tmp/gcc-4.7-20110723/libgcc/../gcc/libgcc2.c: In function '__lshrti3':
/tmp/gcc-4.7-20110723/libgcc/../gcc/libgcc2.c:427:1: internal compiler error:
in connect_traces, at dwarf2cfi.c:2632
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
make[2]: *** [_lshrdi3.o] Error 1
make[2]: Leaving directory `/tmp/objdir/sparc64-unknown-linux/libgcc'
make[1]: *** [all-target-libgcc] Error 2
make[1]: Leaving directory `/tmp/objdir'
make: *** [all] Error 2
This isn't the only failure, with 'make -jN' lots of functions in libgcc2.c
fail in this way.
4.7-20110716 was OK.
