[llvm-branch-commits] [llvm-branch] r311539 - [RelNotes, AArch64] Mention improved instruction fusion and fun alignment.

Florian Hahn via llvm-branch-commits llvm-branch-commits at lists.llvm.org
Wed Aug 23 02:12:41 PDT 2017

Author: fhahn
Date: Wed Aug 23 02:12:41 2017
New Revision: 311539

URL: http://llvm.org/viewvc/llvm-project?rev=311539&view=rev
[RelNotes,AArch64] Mention improved instruction fusion and fun alignment.

Reviewers: t.p.northover, hans, kristof.beyls

Reviewed By: hans

Subscribers: aemerson, rengolin, llvm-commits

Differential Revision: https://reviews.llvm.org/D36965


Modified: llvm/branches/release_50/docs/ReleaseNotes.rst
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/release_50/docs/ReleaseNotes.rst?rev=311539&r1=311538&r2=311539&view=diff
--- llvm/branches/release_50/docs/ReleaseNotes.rst (original)
+++ llvm/branches/release_50/docs/ReleaseNotes.rst Wed Aug 23 02:12:41 2017
@@ -80,6 +80,14 @@ Changes to the LLVM IR
 Changes to the Arm Targets
+During this release the AArch64 target has:
+* Made instruction fusion more aggressive, resulting in speedups
+  for code making use of AArch64 AES instructions. AES fusion has been
+  enabled for most Cortex-A cores and the AArch64MacroFusion pass was moved
+  to the generic MacroFusion pass.
+* Added preferred function alignments for most Cortex-A cores.
 During this release the ARM target has:
 * Improved mixed ARM/Thumb code generation. Some cases in which wrong

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