------- Comment #2 from pinskia at gcc dot gnu dot org 2006-10-08 02:10 ------- (In reply to comment #0) > compilation with -O0: > > $ gcc -c -fPIC -g -O0 -g tree234.i > /tmp/cco6vA7j.s: Assembler messages: > /tmp/cco6vA7j.s:172: Error: Rn must not overlap other operands -- `swpb > r3,r2,[r3]'
That is a bug in the source: asm volatile( "# here \n\t" "swpb %0, %1, [%2] \n\t" : "=r" (val) : "r"(1), "r" (lock) : "memory" ); I don't know how to fix that in the inline-asm. Maybe an early clobber can fix that. I doubt this is related to the ICE anyways. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29329