Bug 920050 - SpiderMonkey: Use mov(ImmWord(imm), reg) instead of mov(Imm32(imm), reg) for moving immediates into registers. r=nbp
Bug 920050 - SpiderMonkey: Use movq directly for storePtr with 32-bit immediates on x64. r=nbp
Bug 920050 - SpiderMonkey: Use xorl %reg, %reg to clear a register to zero. r=nbp
Bug 920050 - SpiderMonkey: Use the high-level mov interface for setting registers to zero, since it now knows how to do the xor trick automatically. r=nbp