On Sat, 2 Sep 2006, Rask Ingemann Lambertsen wrote: > What does this instruction mean? > > (set (reg:CC 13 cc) > (ge (mem/c/i:HI (plus:HI (reg/f:HI 15 argp) > (const_int 2 [0x2])) [2 x+0 S2 A16]) > (const_int 0 [0x0]))) >... > The (reg:CC 13 cc) part is the condition code register. But I have no > idea what it means to set that register to a constant (such as > STORE_FLAG_VALUE).
I'm not sure I understand the question correctly (answer being a bit on the obvious side), but for me the answer is "the truthvalue of (argp[1] > 0) in the representation the target uses for CCmode". It's not strictly STORE_FLAG_VALUE at this level; only when "translated" into an ordinary integer mode. When in CCmode it's just the condition code flags; whatever goes in reg 13 when being the (possibly implicit) target of that compare insn. Hope this helps. brgds, H-P
