Russ Cox fd178d6a7e cmd/gc: add way to specify 'noescape' for extern funcs ...

A new comment directive //go:noescape instructs the compiler
that the following external (no body) func declaration should be
treated as if none of its arguments escape to the heap.

Fixes #4099.

R=golang-dev, dave, minux.ma, daniel.morsing, remyoudompheng, adg, agl, iant
CC=golang-dev
https://golang.org/cl/7289048

2013-02-05 07:00:38 -05:00

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