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Go patch committed: Statically allocate constant interface data

From: Ian Lance Taylor <iant at golang dot org>
To: gcc-patches <gcc-patches at gcc dot gnu dot org>, gofrontend-dev <gofrontend-dev at googlegroups dot com>
Date: Tue, 4 Jun 2019 17:18:22 -0700
Subject: Go patch committed: Statically allocate constant interface data

This patch to the Go frontend by Cherry Zhang statically allocates
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 patch changes it to generate a static allocation instead,
as the gc compiler does. This reduces allocations in such cases.
Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu.  Committed
to mainline.

Ian

Attachment: patch.txt
Description: Text document

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