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Re: [PATCH V2] IRA: Speed up setup_left_conflict_sizes_p

On 03/11/2015 07:34 PM, Zhouyi Zhou wrote:
From: Zhouyi Zhou <>

In function setup_left_conflict_sizes_p, left conflict subnodes sizes
are computed in a bottom-to-up fashion through the regnodes foreast.

Speed up the process from prevent node itself to involve in this

I have no write access to GCC SVN repository, if it OK, can you commit
for me?

(Thanks Richard for reviewing)

Bootstrap and regtest scheduled on x86_64 GNU/Linux
Signed-off-by: Zhouyi Zhou <>
  gcc/ChangeLog   |    5 +++++
  gcc/ira-color.c |    8 +++-----
  2 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 53f582b..a495dfc 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2015-03-12  Zhouyi Zhou  <>
+	* ira-color.c (setup_left_conflict_sizes_p): Prevent node itself
+	from computing left conflict subnodes size.
Approved and installed after the usual bootstrap and regression testing.


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