Print physreg register nodes with target names (e.g. F1) instead of numbers

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@22934 91177308-0d34-0410-b5e6-96231b3b80d8

2 files changed, 12 insertions, 2 deletions

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index 8fb6070e94..e083609cae 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2070,7 +2070,11 @@ void SDNode::dump(const SelectionDAG *G) const {
       std::cerr << LBB->getName() << " ";
     std::cerr << (const void*)BBDN->getBasicBlock() << ">";
   } else if (const RegisterSDNode *C2V = dyn_cast<RegisterSDNode>(this)) {
-    std::cerr << " #" << C2V->getReg();
+    if (G && MRegisterInfo::isPhysicalRegister(R->getReg())) {
+      std::cerr << " " <<G->getTarget().getRegisterInfo()->getName(R->getReg());
+    } else {
+      std::cerr << " #" << R->getReg();
+    }
   } else if (const ExternalSymbolSDNode *ES =
              dyn_cast<ExternalSymbolSDNode>(this)) {
     std::cerr << "'" << ES->getSymbol() << "'";
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
index 2a51d203fe..060102c8fc 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGPrinter.cpp
@@ -13,6 +13,8 @@
 
 #include "llvm/CodeGen/SelectionDAG.h"
 #include "llvm/CodeGen/MachineFunction.h"
+#include "llvm/Target/MRegisterInfo.h"
+#include "llvm/Target/TargetMachine.h"
 #include "llvm/Function.h"
 #include "llvm/Support/GraphWriter.h"
 #include "llvm/ADT/StringExtras.h"
@@ -73,7 +75,11 @@ std::string DOTGraphTraits<SelectionDAG*>::getNodeLabel(const SDNode *Node,
       Op += LBB->getName();
     //Op += " " + (const void*)BBDN->getBasicBlock();
   } else if (const RegisterSDNode *R = dyn_cast<RegisterSDNode>(Node)) {
-    Op += " #" + utostr(R->getReg());
+    if (G && MRegisterInfo::isPhysicalRegister(R->getReg())) {
+      Op = Op + " " + G->getTarget().getRegisterInfo()->getName(R->getReg());
+    } else {
+      Op += " #" + utostr(R->getReg());
+    }
   } else if (const ExternalSymbolSDNode *ES =
              dyn_cast<ExternalSymbolSDNode>(Node)) {
     Op += "'" + std::string(ES->getSymbol()) + "'";