6c9df68ed9301dada63daf12ad0cf0e2309a6694 - llvm

commit: 6c9df68ed9301dada63daf12ad0cf0e2309a6694
[log]
author: Alexandros Lamprineas <alexandros.lamprineas@arm.com>
Mon Dec 17 10:45:43 2018 +0000
committer: Alexandros Lamprineas <alexandros.lamprineas@arm.com>
Mon Dec 17 10:45:43 2018 +0000
tree: 6f9a69d4da21617ca43a590fed3291807cf22dd0
parent: c89c03b58becb12c6343a06788a28ea386fe4430 [diff]

[AArch64] Re-run load/store optimizer after aggressive tail duplication

The Load/Store Optimizer runs before Machine Block Placement. At O3 the
Tail Duplication Threshold is set to 4 instructions and this can create
new opportunities for the Load/Store Optimizer. It seems worthwhile to
run it once again.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@349338 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Target/AArch64/AArch64TargetMachine.cpp[diff]
test/CodeGen/AArch64/O3-pipeline.ll[diff]
test/CodeGen/AArch64/ldst-opt-after-block-placement.ll[Added - diff]

3 files changed

tree: 6f9a69d4da21617ca43a590fed3291807cf22dd0