On 02/21/2017 01:09 AM, Martin Liška wrote:
On 02/21/2017 12:03 AM, Alexandre Oliva wrote:
It's convenient to debug -fcompare-debug errors. You set the param to a
large number, and then non-debug insns will get the same uid in both
debug and non-debug compilations, so it's easier to compare RTL dumps
(using the attached gcc-diff-dump; I thought it was in contrib, but it's
not; should I put it there?) and locate the differences.
Yes, please commit the script, I'm interested in :)
There's second version, which changes default to 0.
Patch can bootstrap on ppc64le-redhat-linux and survives regression tests.
Ready to be installed?
Martin
0001-Change-default-of-param-not-being-smaller-that-min.patch
From c4d196cb9ad7ace112e9013403323fea3ead69fc Mon Sep 17 00:00:00 2001
From: marxin <mli...@suse.cz>
Date: Fri, 17 Feb 2017 16:00:30 +0100
Subject: [PATCH] Change default of param not being smaller that min.
gcc/ChangeLog:
2017-02-17 Martin Liska <mli...@suse.cz>
* params.def (PARAM_MIN_NONDEBUG_INSN_UID): Change default to 0.
OK.
jeff
