On Wed, Feb 06, 2008 at 10:59:12AM -0500, Kenneth Zadeck wrote: > > The final code generated appears something like the following. > > > > foo: > > cmpslt $c6,$zero,$c1 > > brz $c6,$link > > i2cs $c6,@MID_11(4660) > > i2c $c6,@BOT_11(4660) > > incsi $c1,-1 > > .L5: > > stw ($c3[0]),$c6 > > addzi $c2,$c2,4 -----> This is a redundant add instruction. > > addzi $c3,$c3,4 > > brinzdec $c1,.L5 > > brz $zero,$link > > > > > I am completely missing your question. i do not see any redundancy of > the insn that you say is redundant. that insn is indexing thru in and > the next insn is indexing thru res. > > Obviously i am missing something.
Except the load from in has been removed (it's redundant); so only the indexing is left. -- Daniel Jacobowitz CodeSourcery
