Latency information for ARM v6. It's rough and not yet hooked up. Right now we are only using branch latency to determine if-conversion limits.

llvm-svn: 73747

1 files changed, 8 insertions, 0 deletions

diff --git a/llvm/lib/Target/ARM/ARMSubtarget.h b/llvm/lib/Target/ARM/ARMSubtarget.h
index c365750d071..c3cc7fff6e3 100644
--- a/llvm/lib/Target/ARM/ARMSubtarget.h
+++ b/llvm/lib/Target/ARM/ARMSubtarget.h
@@ -14,6 +14,7 @@
 #ifndef ARMSUBTARGET_H
 #define ARMSUBTARGET_H
 
+#include "llvm/Target/TargetInstrItineraries.h"
 #include "llvm/Target/TargetSubtarget.h"
 #include <string>
 
@@ -58,6 +59,9 @@ protected:
   /// CPUString - String name of used CPU.
   std::string CPUString;
 
+  /// Selected instruction itineraries (one entry per itinerary class.)
+  InstrItineraryData InstrItins;
+  
  public:
   enum {
     isELF, isDarwin
@@ -110,6 +114,10 @@ protected:
 
   const std::string & getCPUString() const { return CPUString; }
 
+  /// getInstrItins - Return the instruction itineraies based on subtarget 
+  /// selection.
+  const InstrItineraryData &getInstrItineraryData() const { return InstrItins; }
+
   /// getStackAlignment - Returns the minimum alignment known to hold of the
   /// stack frame on entry to the function and which must be maintained by every
   /// function for this subtarget.