[PATCH 0/3] Simplify the simple_return handling

[Segher Boessenkool]

This series teaches cfgcleanup how to optimize jumps and branches to and
around return statements, after which the shrink-wrap code doesn't have
to deal with it anymore.  The simplified code also catches a few more
cases.

Tested on powerpc64-linux (-m32 and -m64, all languages), and also on
x86_64-linux (actually, still in progress with the most recent version
of the patchset).  Is this okay for trunk?


Segher


  cfgcleanup: Bugfix
  cfgcleanup: Fold jumps and conditional branches with returns
  shrink-wrap: Remove complicated simple_return manipulations

 gcc/cfgcleanup.c  | 124 +++++++++++++++++++++++++++++++
 gcc/function.c    | 213 +-----------------------------------------------------
 gcc/shrink-wrap.c | 171 ++++---------------------------------------
 gcc/shrink-wrap.h |   6 --
 4 files changed, 140 insertions(+), 374 deletions(-)

-- 
1.9.3