a40db4f6347b92b5104ba51ac8d87a7c4a9a4d20 - platform_external_llvm80

commit	a40db4f6347b92b5104ba51ac8d87a7c4a9a4d20	[log] [tgz]
author	Philip Reames <listmail@philipreames.com>	Mon Feb 22 20:45:56 2016 +0000
committer	Philip Reames <listmail@philipreames.com>	Mon Feb 22 20:45:56 2016 +0000
tree	33c5e67b05fa2fbff6ab21561d86f2ff2bb15b8e
parent	4a8755bfe6769a3c453c07ea9d2621c8f0c2d48d [diff]

[RS4GC] Revert optimization attempt due to memory corruption

This change reverts "246133 [RewriteStatepointsForGC] Reduce the number of new instructions for base pointers" and a follow on bugfix 12575.

As pointed out in pr25846, this code suffers from a memory corruption bug.  Since I'm (empirically) not going to get back to this any time soon, simply reverting the problematic change is the right answer.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@261565 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Transforms/Scalar/RewriteStatepointsForGC.cpp[diff]
test/Transforms/RewriteStatepointsForGC/base-pointers-4.ll[diff]
test/Transforms/RewriteStatepointsForGC/base-pointers.ll[diff]
test/Transforms/RewriteStatepointsForGC/base-vector.ll[diff]
test/Transforms/RewriteStatepointsForGC/live-vector-nosplit.ll[diff]
test/Transforms/RewriteStatepointsForGC/live-vector.ll[diff]

6 files changed

tree: 33c5e67b05fa2fbff6ab21561d86f2ff2bb15b8e