[llvm-branch-commits] [cfe-branch] r324212 - [ReleaseNotes] Add note for the new -fexperimental-isel flag.

Hans Wennborg via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Mon Feb 5 00:46:54 PST 2018

Author: hans
Date: Mon Feb  5 00:46:54 2018
New Revision: 324212

URL: http://llvm.org/viewvc/llvm-project?rev=324212&view=rev
[ReleaseNotes] Add note for the new -fexperimental-isel flag.

Patch by Amara Emerson.

Differential Revision: https://reviews.llvm.org/D42860


Modified: cfe/branches/release_60/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/cfe/branches/release_60/docs/ReleaseNotes.rst?rev=324212&r1=324211&r2=324212&view=diff
--- cfe/branches/release_60/docs/ReleaseNotes.rst (original)
+++ cfe/branches/release_60/docs/ReleaseNotes.rst Mon Feb  5 00:46:54 2018
@@ -132,6 +132,11 @@ New Compiler Flags
   difference between the ``-std=c17`` and ``-std=c11`` language modes is the
   value of the ``__STDC_VERSION__`` macro, as C17 is a bug fix release.
+- Added the ``-fexperimental-isel`` and ``-fno-experimental-isel`` flags to
+  enable/disable the new GlobalISel instruction selection framework. This
+  feature is enabled by default for AArch64 at the ``-O0`` optimization level.
+  Support for other targets or optimization levels is currently incomplete.
 Deprecated Compiler Flags

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