It's not necessary to do rounding for alloca operations when the requested
alignment is equal to the stack alignment.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@40004 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/TableGen/SubtargetEmitter.h b/utils/TableGen/SubtargetEmitter.h
new file mode 100644
index 0000000..69feeb2
--- /dev/null
+++ b/utils/TableGen/SubtargetEmitter.h
@@ -0,0 +1,62 @@
+//===- SubtargetEmitter.h - Generate subtarget enumerations -----*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file was developed by James M. Laskey and is distributed under
+// the University of Illinois Open Source License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This tablegen backend emits subtarget enumerations.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef SUBTARGET_EMITTER_H
+#define SUBTARGET_EMITTER_H
+
+#include "TableGenBackend.h"
+#include "llvm/Target/TargetInstrItineraries.h"
+#include <vector>
+#include <map>
+#include <string>
+
+
+namespace llvm {
+
+class SubtargetEmitter : public TableGenBackend {
+
+ RecordKeeper &Records;
+ std::string Target;
+ bool HasItineraries;
+
+ void Enumeration(std::ostream &OS, const char *ClassName, bool isBits);
+ void FeatureKeyValues(std::ostream &OS);
+ void CPUKeyValues(std::ostream &OS);
+ unsigned CollectAllItinClasses(std::ostream &OS,
+ std::map<std::string, unsigned> &ItinClassesMap);
+ void FormItineraryString(Record *ItinData, std::string &ItinString,
+ unsigned &NStages);
+ void EmitStageData(std::ostream &OS, unsigned NItinClasses,
+ std::map<std::string, unsigned> &ItinClassesMap,
+ std::vector<std::vector<InstrItinerary> > &ProcList);
+ void EmitProcessorData(std::ostream &OS,
+ std::vector<std::vector<InstrItinerary> > &ProcList);
+ void EmitProcessorLookup(std::ostream &OS);
+ void EmitData(std::ostream &OS);
+ void ParseFeaturesFunction(std::ostream &OS);
+
+public:
+ SubtargetEmitter(RecordKeeper &R) : Records(R), HasItineraries(false) {}
+
+ // run - Output the subtarget enumerations, returning true on failure.
+ void run(std::ostream &o);
+
+};
+
+
+} // End llvm namespace
+
+#endif
+
+
+