id summary reporter owner description type status milestone component version severity resolution keywords cc 5327 MPS ISA issue related to ll / sc Oliver Kowalke Peter Dimov "boost/smart_ptr/detail/sp_counted_base_gcc_mips.hpp uses in its inline assembler ll/sc opcode for atomic operations (increment decremet). Both opcodes are available since MIPS II ISA - unfortunately gcc assumes MIPS ISA I as default - so the inline assembler from sp_counted_base_gcc_mips.hpp triggers an assembler error: 'opcode not supported on this processor : mips1 (ll/sc)' The header could be patches so that it instructs the CPU to switch to ISA II for ll/sc. " Bugs closed To Be Determined smart_ptr Boost 1.45.0 Showstopper fixed mips ll sc assembler error