commit 38aa542f3679af5925315626a37e2d085954ce9f
author Chris Lattner <sabre@nondot.org> Wed Aug 06 21:47:14 2003 +0000
committer Chris Lattner <sabre@nondot.org> Wed Aug 06 21:47:14 2003 +0000
tree b80875f33c99a1d97b8c3f59beef5b92c6f1553e
parent 6a8097550529944887ccb3cc50b4c3d548f978c6

Export the register classes so that the instruction selector can get at them as needed


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@7651 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/RegisterInfoEmitter.cpp

diff --git a/utils/TableGen/RegisterInfoEmitter.cpp b/utils/TableGen/RegisterInfoEmitter.cpp
index a4ad8d5..396f340 100644
--- a/utils/TableGen/RegisterInfoEmitter.cpp
+++ b/utils/TableGen/RegisterInfoEmitter.cpp
@@ -36,8 +36,8 @@
 
 void RegisterInfoEmitter::runHeader(std::ostream &OS) {
   EmitSourceFileHeader("Register Information Header Fragment", OS);
-  
-  std::string ClassName = getTarget(Records)->getName() + "GenRegisterInfo";
+  const std::string &TargetName = getTarget(Records)->getName();
+  std::string ClassName = TargetName + "GenRegisterInfo";
 
   OS << "#include \"llvm/Target/MRegisterInfo.h\"\n\n";
 
@@ -46,6 +46,17 @@
      << "(int CallFrameSetupOpcode = -1, int CallFrameDestroyOpcode = -1);\n"
      << "  const unsigned* getCalleeSaveRegs() const;\n"
      << "};\n\n";
+
+  std::vector<Record*> RegisterClasses =
+    Records.getAllDerivedDefinitions("RegisterClass");
+
+  OS << "namespace " << TargetName << " { // Register classes\n";
+  for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) {
+    const std::string &Name = RegisterClasses[i]->getName();
+    if (Name.size() < 9 || Name[9] != '.')    // Ignore anonymous classes
+      OS << "  extern TargetRegisterClass *" << Name << "RegisterClass;\n";
+  }
+  OS << "} // end of namespace " << TargetName << "\n\n";
 }
 
 // RegisterInfoEmitter::run - Main register file description emitter.
@@ -183,6 +194,18 @@
   OS << "}\n\n";       // End of anonymous namespace...
 
   Record *Target = getTarget(Records);
+
+  OS << "namespace " << Target->getName() << " { // Register classes\n";
+  for (unsigned i = 0, e = RegisterClasses.size(); i != e; ++i) {
+    const std::string &Name = RegisterClasses[i]->getName();
+    if (Name.size() < 9 || Name[9] != '.')    // Ignore anonymous classes
+      OS << "  TargetRegisterClass *" << Name << "RegisterClass = &"
+         << Name << "Instance;\n";
+  }
+  OS << "} // end of namespace " << Target->getName() << "\n\n";
+
+
+
   std::string ClassName = Target->getName() + "GenRegisterInfo";
   
   // Emit the constructor of the class...