tree 5134da12f80472bd8da096dab7f7f01bdc2d0abf
parent e4d8ccaed06f81683e79774ede6c61949f6df8b8
author Cherry Zhang <cherryyz@google.com> 1559319269 -0400
committer Ian Lance Taylor <iant@golang.org> 1559693865 +0000

compiler: statically allocate constant interface data

When converting a constant to interface, such as interface{}(42)
or interface{}("hello"), if the interface escapes, we currently
generate a heap allocation to hold the constant value.

This CL changes it to generate a static allocation instead, as
the gc compiler does. This reduces allocations in such cases.

Change-Id: Ic53b202362917d1829f60f166ea50457e2fcb468
Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/180277
Reviewed-by: Ian Lance Taylor <iant@golang.org>