Recommit rL305677: [CodeGen] Add generic MacroFusion pass

Use llvm::make_unique to avoid ambiguity with MSVC.

This patch adds a generic MacroFusion pass, that is used on X86 and
AArch64, which both define target-specific shouldScheduleAdjacent
functions. This generic pass should make it easier for other targets to
implement macro fusion and I intend to add macro fusion for ARM shortly.

Differential Revision: https://reviews.llvm.org/D34144

llvm-svn: 305690

1 files changed, 3 insertions, 8 deletions

diff --git a/llvm/lib/Target/X86/X86MacroFusion.h b/llvm/lib/Target/X86/X86MacroFusion.h
index e630f802e8e..13fa2d78a01 100644
--- a/llvm/lib/Target/X86/X86MacroFusion.h
+++ b/llvm/lib/Target/X86/X86MacroFusion.h
@@ -2,23 +2,18 @@
 //
 //                     The LLVM Compiler Infrastructure
 //
-// \file This file is distributed under the University of Illinois Open Source
+// This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
-// This file contains the X86 definition of the DAG scheduling mutation to pair
-// instructions back to back.
+/// \file This file contains the X86 definition of the DAG scheduling mutation
+///  to pair instructions back to back.
 //
 //===----------------------------------------------------------------------===//
 
-#include "X86InstrInfo.h"
 #include "llvm/CodeGen/MachineScheduler.h"
 
-//===----------------------------------------------------------------------===//
-// X86MacroFusion - DAG post-processing to encourage fusion of macro ops.
-//===----------------------------------------------------------------------===//
-
 namespace llvm {
 
 /// Note that you have to add: