[llvm-commits] CVS: llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp

[Chris Lattner]

Changes in directory llvm/lib/Target/PowerPC:

PowerPCTargetMachine.cpp updated: 1.63 -> 1.64
---
Log message:

add a beta option for turning on dag->dag isel


---
Diffs of the changes:  (+9 -3)

 PowerPCTargetMachine.cpp |   12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)


Index: llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp
diff -u llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.63 llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.64
--- llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp:1.63	Mon Aug 15 18:47:04 2005
+++ llvm/lib/Target/PowerPC/PowerPCTargetMachine.cpp	Wed Aug 17 14:33:30 2005
@@ -30,8 +30,11 @@
 using namespace llvm;
 
 namespace {
-  const std::string PPC32ID = "PowerPC/32bit";
+  const char *PPC32ID = "PowerPC/32bit";
 
+  static cl::opt<bool> EnablePPCDAGDAG("enable-ppc-dag-isel", cl::Hidden,
+                            cl::desc("Enable DAG-to-DAG isel for PPC (beta)"));
+  
   // Register the targets
   RegisterTarget<PPC32TargetMachine>
   X("ppc32", "  PowerPC 32-bit");
@@ -81,8 +84,11 @@
   // Make sure that no unreachable blocks are instruction selected.
   PM.add(createUnreachableBlockEliminationPass());
 
-  // Default to pattern ISel
-  if (PatternISelTriState == 0) {
+  // Install an instruction selector.
+  if (EnablePPCDAGDAG) {
+    PM.add(createPPC32ISelDag(*this));
+    
+  } else if (PatternISelTriState == 0) {
     PM.add(createLowerConstantExpressionsPass());
     PM.add(createPPC32ISelSimple(*this));
   } else