Add physical register counting functions
llvm-svn: 118397
diff --git a/llvm/lib/Target/PTX/PTXMachineFunctionInfo.h b/llvm/lib/Target/PTX/PTXMachineFunctionInfo.h
new file mode 100644
index 0000000..0a860b5
--- /dev/null
+++ b/llvm/lib/Target/PTX/PTXMachineFunctionInfo.h
@@ -0,0 +1,78 @@
+//===- PTXMachineFuctionInfo.h - PTX machine function info -------*- C++ -*-==//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file declares PTX-specific per-machine-function information.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef PTX_MACHINE_FUNCTION_INFO_H
+#define PTX_MACHINE_FUNCTION_INFO_H
+
+#include "PTX.h"
+#include "llvm/CodeGen/MachineFunction.h"
+
+namespace llvm {
+/// PTXMachineFunctionInfo - This class is derived from MachineFunction and
+/// contains private PTX target-specific information for each MachineFunction.
+///
+class PTXMachineFunctionInfo : public MachineFunctionInfo {
+private:
+ bool is_kernel;
+ std::vector<unsigned> reg_arg, reg_local_var;
+ unsigned reg_ret;
+ bool _isDoneAddArg;
+
+public:
+ PTXMachineFunctionInfo(MachineFunction &MF)
+ : is_kernel(false), reg_ret(PTX::NoRegister), _isDoneAddArg(false) {
+ reg_arg.reserve(32);
+ reg_local_var.reserve(64);
+ }
+
+ void setKernel(bool _is_kernel=true) { is_kernel = _is_kernel; }
+
+ void addArgReg(unsigned reg) { reg_arg.push_back(reg); }
+ void addLocalVarReg(unsigned reg) { reg_local_var.push_back(reg); }
+ void setRetReg(unsigned reg) { reg_ret = reg; }
+
+ void doneAddArg(void) {
+ std::sort(reg_arg.begin(), reg_arg.end());
+ _isDoneAddArg = true;
+ }
+ void doneAddLocalVar(void) {
+ std::sort(reg_local_var.begin(), reg_local_var.end());
+ }
+
+ bool isDoneAddArg(void) { return _isDoneAddArg; }
+
+ bool isKernel() const { return is_kernel; }
+
+ typedef std::vector<unsigned>::const_iterator reg_iterator;
+
+ bool argRegEmpty() const { return reg_arg.empty(); }
+ reg_iterator argRegBegin() const { return reg_arg.begin(); }
+ reg_iterator argRegEnd() const { return reg_arg.end(); }
+
+ bool localVarRegEmpty() const { return reg_local_var.empty(); }
+ reg_iterator localVarRegBegin() const { return reg_local_var.begin(); }
+ reg_iterator localVarRegEnd() const { return reg_local_var.end(); }
+
+ unsigned retReg() const { return reg_ret; }
+
+ bool isArgReg(unsigned reg) const {
+ return std::binary_search(reg_arg.begin(), reg_arg.end(), reg);
+ }
+
+ bool isLocalVarReg(unsigned reg) const {
+ return std::binary_search(reg_local_var.begin(), reg_local_var.end(), reg);
+ }
+}; // class PTXMachineFunctionInfo
+} // namespace llvm
+
+#endif // PTX_MACHINE_FUNCTION_INFO_H