Hello, there seems to be a problem compiling the attached source file with i686-pc-linux-gnu-gcc: gcc -m32 -Wp,-MD,mm/.slab.o.d -nostdinc -isystem /home/mstein/host-gcc/trunk-2007-06-24/bin/../lib/gcc/i686-pc-linux-gnu/4.3.0/include -D__KERNEL__ -Iinclude -include include/linux/autoconf.h -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -Os -pipe -msoft-float -mregparm=3 -mpreferred-stack-boundary=2 -march=i686 -mtune=generic -ffreestanding -maccumulate-outgoing-args -DCONFIG_AS_CFI=1 -Iinclude/asm-i386/mach-default -fno-omit-frame-pointer -fno-optimize-sibling-calls -g -fno-stack-protector -Wdeclaration-after-statement -Wno-pointer-sign -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(slab)" -D"KBUILD_MODNAME=KBUILD_STR(slab)" -c -o mm/.tmp_slab.o mm/slab.c mm/slab.c: In function '__cache_shrink': mm/slab.c:2476: error: expected an SSA_NAME object mm/slab.c:2476: error: in statement # VUSE <SFT.1676> { SFT.1676 } D.24655_100 = node_online_map.bits[0]; mm/slab.c:2476: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. host gcc -v Using built-in specs. Target: i686-pc-linux-gnu Configured with: /home/mstein/svn/trunk/configure --enable-languages=c --disable-nls --prefix=/n/07/mstein/host-gcc/trunk-2007-06-24 Thread model: posix gcc version 4.3.0 20070623 (experimental) Tested revion: 125975
Created attachment 13777 [details] preprocessed source file
Created attachment 13814 [details] preprocessed source file from linux-2.6.20, delta-reduced
I get what I think is the exact same problem: mm/slab.c:2243: error: expected an SSA_NAME object mm/slab.c:2243: error: in statement # VUSE <SFT.956> { SFT.956 } D.17707_131 = node_online_map.bits[0]; mm/slab.c:2243: internal compiler error: verify_ssa failed Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. gcc -v Using built-in specs. Target: vax-linux-uclibc Configured with: /home/mikkel/linux-vax/build/build-20070702-163607-UTC-vax-linux-uclibc/src/gcc/configure --disable-multilib --with-newlib --disable-nls --enable-threads=no --disable-threads --enable-symvers=gnu --enable-__cxa_atexit --disable-shared --target=vax-linux-uclibc --prefix=/home/mikkel/linux-vax/build/build-20070702-163607-UTC-vax-linux-uclibc/install/usr --enable-languages=c,c++ Thread model: single gcc version 4.3.0 20070702 (experimental) The source is definitely available, but as it's the same file (although from another version of the Linux kernel) as that of the original bug reporter it seems to be of little use.
Mine.
Subject: Bug 32482 Author: rguenth Date: Wed Jul 4 11:44:58 2007 New Revision: 126314 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=126314 Log: 2007-07-04 Richard Guenther <rguenther@suse.de> PR tree-optimization/32482 * tree-ssa-ifcombine.c (recognize_single_bit_test): Use the original ssa name if we didn't find a shift expression. Fix shift constant for bit zero test. * gcc.c-torture/compile/pr32482.c: New testcase. Added: trunk/gcc/testsuite/gcc.c-torture/compile/pr32482.c Modified: trunk/gcc/ChangeLog trunk/gcc/testsuite/ChangeLog trunk/gcc/tree-ssa-ifcombine.c
Fixed.