[Bug 1742289] [NEW] arm64 performance improvements

[dann frazier]

Public bug reported:

Please include the following performance improvements for arm64:

* Fix PR target/81356 (AArch64): Avoid memory access w/
  __builtin_strcpy of empty string.
* aarch64-simd: Avoid emitting dup insn by using canonical form for fnma.
* aarch64/thunderx2: Add pipeline/scheduling info for missing insn types.

** Affects: gcc-7 (Ubuntu)
     Importance: Undecided
     Assignee: Matthias Klose (doko)
         Status: Confirmed

** Attachment added: "gcc-7-arm64-fixes.patch"
   https://bugs.launchpad.net/bugs/1742289/+attachment/5033806/+files/gcc-7-arm64-fixes.patch

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to gcc-7 in Ubuntu.
https://bugs.launchpad.net/bugs/1742289

Title:
  arm64 performance improvements

Status in gcc-7 package in Ubuntu:
  Confirmed

Bug description:
  Please include the following performance improvements for arm64:

  * Fix PR target/81356 (AArch64): Avoid memory access w/
    __builtin_strcpy of empty string.
  * aarch64-simd: Avoid emitting dup insn by using canonical form for fnma.
  * aarch64/thunderx2: Add pipeline/scheduling info for missing insn types.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gcc-7/+bug/1742289/+subscriptions