Re: RFA: patch to prohibit IRA undoing sched1 [was IRA undoing sched1]

2010-12-18 Thread H.J. Lu
On Thu, Dec 2, 2010 at 2:17 PM, Vladimir Makarov wrote: > On 12/01/2010 02:14 PM, Paul Koning wrote: >> >> On Nov 29, 2010, at 9:51 PM, Vladimir Makarov wrote: >> >>> On 11/29/2010 08:52 PM, Paul Koning wrote: I'm doing some experiments to get to know GCC better, and something is pu

Re: RFA: patch to prohibit IRA undoing sched1 [was IRA undoing sched1]

2010-12-03 Thread Jeff Law
On 12/02/10 15:17, Vladimir Makarov wrote: On 12/01/2010 02:14 PM, Paul Koning wrote: On Nov 29, 2010, at 9:51 PM, Vladimir Makarov wrote: On 11/29/2010 08:52 PM, Paul Koning wrote: I'm doing some experiments to get to know GCC better, and something is puzzling me. I have defined an md file

RFA: patch to prohibit IRA undoing sched1 [was IRA undoing sched1]

2010-12-02 Thread Vladimir Makarov
On 12/01/2010 02:14 PM, Paul Koning wrote: On Nov 29, 2010, at 9:51 PM, Vladimir Makarov wrote: On 11/29/2010 08:52 PM, Paul Koning wrote: I'm doing some experiments to get to know GCC better, and something is puzzling me. I have defined an md file with DFA and costs describing the fact that

Re: IRA undoing sched1

2010-12-01 Thread Paul Koning
On Nov 29, 2010, at 9:51 PM, Vladimir Makarov wrote: > On 11/29/2010 08:52 PM, Paul Koning wrote: >> I'm doing some experiments to get to know GCC better, and something is >> puzzling me. >> >> I have defined an md file with DFA and costs describing the fact that loads >> take a while (as do s

Re: IRA undoing sched1

2010-11-29 Thread Vladimir Makarov
On 11/29/2010 08:52 PM, Paul Koning wrote: I'm doing some experiments to get to know GCC better, and something is puzzling me. I have defined an md file with DFA and costs describing the fact that loads take a while (as do stores). Also, there is no memory to memory move, only memory to/from

IRA undoing sched1

2010-11-29 Thread Paul Koning
I'm doing some experiments to get to know GCC better, and something is puzzling me. I have defined an md file with DFA and costs describing the fact that loads take a while (as do stores). Also, there is no memory to memory move, only memory to/from register. Test program is basically a=b; c=d