code review 4226042: 5g: fix optimizer bug

5g: fix optimizer bug

same as in issue below, never fixed on ARM

changeset:   5498:3fa1372ca694
user:        Ken Thompson <ken@golang.org>
date:        Thu May 20 17:31:28 2010 -0700

description:
fix issue 798
cannot allocate an audomatic temp
while real registers are allocated.
there is a chance that the automatic
will be allocated to one of the
allocated registers. the fix is to
not registerize such variables.

R=rsc
CC=golang-dev
http://codereview.appspot.com/1202042

[rsc, 2011-02-23 18:21:38]

Hello ken2 (cc: golang-dev@googlegroups.com),

I'd like you to review this change to
https://go.googlecode.com/hg/

[rsc, 2011-02-23 18:21:41]

*** Submitted as http://code.google.com/p/go/source/detail?r=de88610b0169 ***

5g: fix optimizer bug

same as in issue below, never fixed on ARM

changeset:   5498:3fa1372ca694
user:        Ken Thompson <ken@golang.org>
date:        Thu May 20 17:31:28 2010 -0700

description:
fix issue 798
cannot allocate an audomatic temp
while real registers are allocated.
there is a chance that the automatic
will be allocated to one of the
allocated registers. the fix is to
not registerize such variables.

R=rsc
CC=golang-dev
http://codereview.appspot.com/1202042

R=ken2
CC=golang-dev
http://codereview.appspot.com/4226042

[ken3, 2011-02-25 09:28:03]

lgtm