[X86] Refactor the prologue emission to prepare for shrink-wrapping.

[oota-llvm.git] / lib / Target / TargetSubtargetInfo.cpp

diff --git a/lib/Target/TargetSubtargetInfo.cpp b/lib/Target/TargetSubtargetInfo.cpp
index 59ffdea00ea6b4a751081160d63d79406dd0ef63..b2bb59ea28c44e4e230834a5d7fe5dfbdfae8d46 100644 (file)
--- a/lib/Target/TargetSubtargetInfo.cpp
+++ b/lib/Target/TargetSubtargetInfo.cpp
@@ -11,8 +11,9 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "llvm/Target/TargetSubtargetInfo.h"
+#include "llvm/Support/CommandLine.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/Target/TargetSubtargetInfo.h"
 using namespace llvm;
 
 //---------------------------------------------------------------------------
@@ -22,12 +23,27 @@ TargetSubtargetInfo::TargetSubtargetInfo() {}
 
 TargetSubtargetInfo::~TargetSubtargetInfo() {}
 
-bool TargetSubtargetInfo::enablePostRAScheduler(
-          CodeGenOpt::Level OptLevel,
-          AntiDepBreakMode& Mode,
-          RegClassVector& CriticalPathRCs) const {
-  Mode = ANTIDEP_NONE;
-  CriticalPathRCs.clear();
+bool TargetSubtargetInfo::enableAtomicExpand() const {
+  return true;
+}
+
+bool TargetSubtargetInfo::enableMachineScheduler() const {
   return false;
 }
 
+bool TargetSubtargetInfo::enableJoinGlobalCopies() const {
+  return enableMachineScheduler();
+}
+
+bool TargetSubtargetInfo::enableRALocalReassignment(
+    CodeGenOpt::Level OptLevel) const {
+  return true;
+}
+
+bool TargetSubtargetInfo::enablePostMachineScheduler() const {
+  return getSchedModel().PostRAScheduler;
+}
+
+bool TargetSubtargetInfo::useAA() const {
+  return false;
+}