The bswapdi code introduced on July 31st causes a segmentation fault in the compiler if -m32 and -mpowerpc64 are used:
--> gdb cc1 GNU gdb (GDB; SUSE Linux Enterprise 11) 6.8.50.20081120-cvs Copyright (C) 2008 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "ppc64-suse-linux". For bug reporting instructions, please see: <http://bugs.opensuse.org/>... Breakpoint 1 at 0x101bd55c: file /home/meissner/fsf-src/trunk/gcc/diagnostic.c, line 728. Breakpoint 2 at 0x101be118: file /home/meissner/fsf-src/trunk/gcc/diagnostic.c, line 673. Breakpoint 3 at 0x108cb460 Breakpoint 4 at 0x108cb4b0 (gdb) r -O2 -quiet -m32 -mpowerpc64 bswap64-4.c Starting program: /data2/meissner/fsf-build-ppc64/trunk-2009-09-09/gcc/cc1 -O2 -quiet -m32 -mpowerpc64 bswap64-4.c Program received signal SIGSEGV, Segmentation fault. gen_bswapsi2 (operand0=0x0, operand1=0x4000042dfa0) at /home/meissner/fsf-src/trunk/gcc/config/rs6000/rs6000.md:2350 2350 if (!REG_P (operands[0]) && !REG_P (operands[1])) (gdb) -- Summary: __builtin_bswap64 generates incorrect code for -m32 - mpowerpc64 Product: gcc Version: 4.5.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: meissner at gcc dot gnu dot org ReportedBy: meissner at gcc dot gnu dot org GCC build triplet: powerpc64-unknown-linux-gnu GCC host triplet: powerpc64-unknown-linux-gnu GCC target triplet: powerpc64-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41331
