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libgo patch committed: Enable precise GC checks when using stack maps

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, 5 Mar 2019 15:05:41 -0800
Subject: libgo patch committed: Enable precise GC checks when using stack maps

This libgo patch by Cherry Zhang enables precise GC checks when using
stack maps.  The runtime package has bad pointer checks that currently
don't work with the conservative collector used by gccgo. With stack
maps, the GC is precise and the checks should work.  Enable them.
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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