tree f8a6493763e9084927fd0c42c3941f3e437f54ef
parent cf7461caedfdef8d771166f4fb6ce0fc381b7100
author David Chase <drchase@google.com> 1427469674 -0400
committer David Chase <drchase@google.com> 1427731882 +0000

cmd/gc: allocate backing storage for non-escaping interfaces on stack

Extend escape analysis to convT2E and conT2I. If the interface value
does not escape supply runtime with a stack buffer for the object copy.

This is a straight port from .c to .go of Dmitry's patch

Change-Id: Ic315dd50d144d94dd3324227099c116be5ca70b6
Reviewed-on: https://go-review.googlesource.com/8201
Reviewed-by: Dmitry Vyukov <dvyukov@google.com>