From: Paolo Bonzini <bonzini@gnu.org>
To: Kenneth Zadeck <zadeck@naturalbridge.com>,
gcc-patches <gcc-patches@gcc.gnu.org>,
Ian Lance Taylor <iant@google.com>,
Mike Stump <mikestump@comcast.net>,
Kenneth Zadeck <Kenneth.Zadeck@NaturalBridge.com>,
avr@gjlay.de, rdsandiford@googlemail.com
Subject: Re: [C Patch]: pr52543
Date: Thu, 10 May 2012 06:45:00 -0000 [thread overview]
Message-ID: <4FAB63FE.8050205@gnu.org> (raw)
In-Reply-To: <g47gy2e6z8.fsf@richards-thinkpad.stglab.manchester.uk.ibm.com>
Il 30/03/2012 12:08, Richard Sandiford ha scritto:
>> > + There are two useful preprocessor defines for use by maintainers:
>> > +
>> > + #define LOG_COSTS
>> > +
>> > + if you wish to see the actual cost estimates that are being used
>> > + for each mode wider than word mode and the cost estimates for zero
>> > + extension and the shifts. This can be useful when port maintainers
>> > + are tuning insn rtx costs.
>> > +
>> > + #define FORCE_LOWERING
>> > +
>> > + if you wish to test the pass with all the transformation forced on.
>> > + This can be useful for finding bugs in the transformations.
> Must admit I'm not keen on these kinds of macro, but it's Ian's call.
Indeed, LOG_COSTS should be (dump_flags & TDF_DETAILS) != 0, and perhaps
FORCE_LOWERING should be a -f flag (like -flower-all-subregs) or a --param.
Paolo
next prev parent reply other threads:[~2012-05-10 6:45 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <4F67D595.9030700@naturalbridge.com>
[not found] ` <mcrd387n9bf.fsf@dhcp-172-18-216-180.mtv.corp.google.com>
[not found] ` <4F6881EA.9080306@naturalbridge.com>
[not found] ` <mcrvclzl7b7.fsf@dhcp-172-18-216-180.mtv.corp.google.com>
[not found] ` <4F6889CC.8080302@naturalbridge.com>
[not found] ` <mcrr4wnl6lb.fsf@dhcp-172-18-216-180.mtv.corp.google.com>
2012-03-29 21:10 ` Kenneth Zadeck
2012-03-30 8:34 ` Ramana Radhakrishnan
2012-03-30 10:09 ` Richard Sandiford
2012-03-30 15:25 ` Kenneth Zadeck
2012-03-30 15:41 ` Richard Sandiford
2012-03-31 16:21 ` Kenneth Zadeck
2012-04-03 13:53 ` Richard Sandiford
2012-04-03 15:33 ` Kenneth Zadeck
2012-04-03 19:20 ` Richard Sandiford
2012-04-03 20:36 ` Ian Lance Taylor
2012-05-01 14:47 ` Richard Sandiford
2012-05-01 17:51 ` H.J. Lu
2012-05-03 19:52 ` Georg-Johann Lay
2012-05-03 22:14 ` Mike Stump
2012-05-04 23:02 ` Georg-Johann Lay
2012-05-06 18:55 ` [committed] Fix lower-subreg cost calculation Richard Sandiford
2012-05-08 15:26 ` Richard Earnshaw
2012-05-08 21:42 ` Richard Sandiford
2012-05-09 9:48 ` Richard Earnshaw
2012-05-07 19:01 ` [C Patch]: pr52543 Mike Stump
2012-05-09 6:02 ` Fix gcc.dg/lower-subreg-1.c failure (was: [C Patch]: pr52543) Hans-Peter Nilsson
2012-05-09 9:15 ` Fix gcc.dg/lower-subreg-1.c failure Richard Sandiford
2012-05-09 16:37 ` Hans-Peter Nilsson
2012-07-07 23:03 ` Fix gcc.dg/lower-subreg-1.c failure, revisited Hans-Peter Nilsson
2012-07-08 12:14 ` Richard Sandiford
2012-07-12 21:14 ` Hans-Peter Nilsson
2012-05-16 6:25 ` ping: Fix gcc.dg/lower-subreg-1.c failure (was: [C Patch]: pr52543) Hans-Peter Nilsson
2012-05-23 4:42 ` ping*2: " Hans-Peter Nilsson
2012-05-30 2:49 ` ping*3: " Hans-Peter Nilsson
2012-06-07 5:39 ` ping*4: " Hans-Peter Nilsson
2012-04-03 16:22 ` [C Patch]: pr52543 Ian Lance Taylor
2012-05-10 6:45 ` Paolo Bonzini [this message]
2012-05-10 6:54 ` Paolo Bonzini
[not found] ` <CACUk7=XVO=yHrPBFtAVfPxMtViYthtGGfuQSVGHNqHE7ibER0g@mail.gmail.com>
2012-03-30 19:29 ` Kenneth Zadeck
2012-03-30 22:38 ` Ramana Radhakrishnan
2012-03-30 14:40 Georg-Johann Lay
2012-03-30 15:36 ` Kenneth Zadeck
2012-03-30 15:46 ` Richard Sandiford
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