| commit | 7e590184ae1ebc02e1b2577de00cf4fe842217dc | [log] [tgz] |
|---|---|---|
| author | Cherry Zhang <cherryyz@google.com> | Mon Mar 25 16:50:18 2019 -0400 |
| committer | Ian Lance Taylor <iant@golang.org> | Wed May 01 21:36:21 2019 +0000 |
| tree | ad67507a0a754041da8dcd6f4bf3ac7bb21d14a3 | |
| parent | b42744825e3f2d1d2981eedbb67d6ac6419b8122 [diff] |
compiler: recognize and optimize map range clear
Recognize
for k := range m { delete(m, k) }
for map m, and rewrite it to runtime.mapclear, as the gc compiler
does.
Change-Id: I13ca2e4341f33932ef278823d34d5548bb1f9822
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/169397
Reviewed-by: Ian Lance Taylor <iant@golang.org>