MachineCSE: Add a target query for the LookAheadLimit heurisitic
authorTom Stellard <thomas.stellard@amd.com>
Sat, 9 May 2015 00:56:07 +0000 (00:56 +0000)
committerTom Stellard <thomas.stellard@amd.com>
Sat, 9 May 2015 00:56:07 +0000 (00:56 +0000)
commit7d66bd3e7f3ae8ad982eaf7fead8e0127642f8cc
treef76ce58a7aac71e6de4bbd4cfea102e713f90e88
parentf5b930b2e220473a6a4c4ba4d6f9f5fca70983e5
MachineCSE: Add a target query for the LookAheadLimit heurisitic

This is used to determine whether or not to CSE physical register
defs.

Differential Revision: http://reviews.llvm.org/D9472

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@236923 91177308-0d34-0410-b5e6-96231b3b80d8
include/llvm/Target/TargetInstrInfo.h
lib/CodeGen/MachineCSE.cpp
lib/Target/R600/SIInstrInfo.h