code review 72270046: cmd/gc: enforce register-width alignment for stack sizes.

cmd/gc: enforce register-width alignment for stack sizes.

This fixes the following amd64p32 issue:
    pkg/time/format.go:724: internal compiler error: twobitwalktype1: invalid initial alignment, Time

caused by the pointer zone ending on a 32-bit-aligned boundary.

[remyoudompheng, 2014-03-07 19:18:42]

Hello rsc@golang.org, dave@cheney.net (cc: golang-codereviews@googlegroups.com),

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

[rsc, 2014-03-07 19:22:35]

LGTM

[remyoudompheng, 2014-03-07 19:28:23]

*** Submitted as https://code.google.com/p/go/source/detail?r=03e5b26282f7 ***

cmd/gc: enforce register-width alignment for stack sizes.

This fixes the following amd64p32 issue:
    pkg/time/format.go:724: internal compiler error: twobitwalktype1: invalid
initial alignment, Time

caused by the pointer zone ending on a 32-bit-aligned boundary.

LGTM=rsc
R=rsc, dave
CC=golang-codereviews
https://codereview.appspot.com/72270046

[gobot, 2014-03-08 02:11:07]

This CL appears to have broken the darwin-386-cheney builder.