[llvm-commits] CVS: llvm/utils/TableGen/CodeGenRegisters.h CodeGenTarget.h

[Chris Lattner]

Changes in directory llvm/utils/TableGen:

CodeGenRegisters.h updated: 1.9 -> 1.10
CodeGenTarget.h updated: 1.20 -> 1.21
---
Log message:

Add some methods


---
Diffs of the changes:  (+22 -1)

 CodeGenRegisters.h |    2 ++
 CodeGenTarget.h    |   21 ++++++++++++++++++++-
 2 files changed, 22 insertions(+), 1 deletion(-)


Index: llvm/utils/TableGen/CodeGenRegisters.h
diff -u llvm/utils/TableGen/CodeGenRegisters.h:1.9 llvm/utils/TableGen/CodeGenRegisters.h:1.10
--- llvm/utils/TableGen/CodeGenRegisters.h:1.9	Wed Nov 30 22:51:06 2005
+++ llvm/utils/TableGen/CodeGenRegisters.h	Sun Dec  4 20:35:08 2005
@@ -42,6 +42,8 @@
 
     const std::string &getName() const;
 
+    unsigned getNumValueTypes() const { return VTs.size(); }
+    
     const MVT::ValueType getValueTypeNum(unsigned VTNum) const {
       if (VTNum < VTs.size())
         return VTs[VTNum];


Index: llvm/utils/TableGen/CodeGenTarget.h
diff -u llvm/utils/TableGen/CodeGenTarget.h:1.20 llvm/utils/TableGen/CodeGenTarget.h:1.21
--- llvm/utils/TableGen/CodeGenTarget.h:1.20	Wed Nov 30 18:06:14 2005
+++ llvm/utils/TableGen/CodeGenTarget.h	Sun Dec  4 20:35:08 2005
@@ -90,7 +90,26 @@
     assert(0 && "Didn't find the register class");
     abort();
   }
-
+  
+  /// getRegisterClassForRegister - Find the register class that contains the
+  /// specified physical register.  If there register exists in multiple
+  /// register classes or is not in a register class, return null.
+  const CodeGenRegisterClass *getRegisterClassForRegister(Record *R) const {
+    const std::vector<CodeGenRegisterClass> &RCs = getRegisterClasses();
+    const CodeGenRegisterClass *FoundRC = 0;
+    for (unsigned i = 0, e = RCs.size(); i != e; ++i) {
+      const CodeGenRegisterClass &RC = RegisterClasses[i];
+      for (unsigned ei = 0, ee = RC.Elements.size(); ei != ee; ++ei) {
+        if (R == RC.Elements[ei]) {
+          if (FoundRC) return 0;  // In multiple RC's
+          FoundRC = &RC;
+          break;
+        }
+      }
+    }
+    return FoundRC;
+  }
+  
   const std::vector<MVT::ValueType> &getLegalValueTypes() const {
     if (LegalValueTypes.empty()) ReadLegalValueTypes();
     return LegalValueTypes;