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[PATCH] Account for devirtualization opportunities in inliner

From: Maxim Kuvyrkov <maxim at codesourcery dot com>
To: Jan Hubicka <hubicka at ucw dot cz>
Cc: GCC Patches <gcc-patches at gcc dot gnu dot org>, Martin Jambor <mjambor at suse dot cz>
Date: Wed, 28 Sep 2011 16:56:19 +1300
Subject: [PATCH] Account for devirtualization opportunities in inliner

Jan,

The following patch starts a series of patches which improve devirtualization optimizations in GCC.

This patch builds on ipa-cp.c and ipa-prop.c infrastructure for analyzing parameters and jump functions and adds basic estimation of devirtualization benefit from inlining an edge.  E.g., if inlining A across edge E into B will allow some of the indirect edges of A to be resolved, then inlining cost of edge E is reduced.

The patch was bootstrapped and regtested on x86_64-linux-gnu on both -m32 and -m64 multilibs.

OK to commit?

Thank you,

--
Maxim Kuvyrkov
CodeSourcery / Mentor Graphics

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