On 12/17/2009 09:07 AM, Richard Henderson wrote:
+ case TCG_COND_NE: + if (const_arg2) { + if ((uint16_t) arg2 == arg2) { + tcg_out32 (s, XORI | RS (arg1) | RA (0) | arg2); + } + else { + tcg_out_movi (s, TCG_TYPE_I32, 0, arg2); + tcg_out32 (s, XOR | SAB (arg1, 0, 0)); + } + } + else { + tcg_out32 (s, XOR | SAB (arg1, 0, arg2)); + } + + tcg_out32 (s, ADDIC | RT (arg0) | RA (0) | 0xffff); + tcg_out32 (s, SUBFE | TAB (arg0, arg0, 0)); + return;Heh, you know a trick that gcc doesn't for powerpc. It just adds an xor at the end of the EQ sequence.
Ah, gcc does know the trick, it just thinks it's only a win on old Power systems.
r~
