Break RA_DEBUG option into several levels to get better control over
debug output.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3724 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAlloc/RegClass.cpp b/lib/CodeGen/RegAlloc/RegClass.cpp
index 5998f1f..b92b709 100644
--- a/lib/CodeGen/RegAlloc/RegClass.cpp
+++ b/lib/CodeGen/RegAlloc/RegClass.cpp
@@ -1,3 +1,9 @@
+//===-- RegClass.cpp -----------------------------------------------------===//
+//
+// class RegClass for coloring-based register allocation for LLVM.
+//
+//===----------------------------------------------------------------------===//
+
#include "llvm/CodeGen/RegClass.h"
#include "llvm/CodeGen/RegAllocCommon.h"
using std::cerr;
@@ -11,7 +17,7 @@
const ReservedColorListType *RCL)
: Meth(M), MRC(Mrc), RegClassID( Mrc->getRegClassID() ),
IG(this), IGNodeStack(), ReservedColorList(RCL) {
- if( DEBUG_RA)
+ if( DEBUG_RA >= RA_DEBUG_Interference)
cerr << "Created Reg Class: " << RegClassID << "\n";
IsColorUsedArr.resize(Mrc->getNumOfAllRegs());
@@ -24,7 +30,8 @@
//----------------------------------------------------------------------------
void RegClass::colorAllRegs()
{
- if(DEBUG_RA) cerr << "Coloring IG of reg class " << RegClassID << " ...\n";
+ if(DEBUG_RA >= RA_DEBUG_Coloring)
+ cerr << "Coloring IG of reg class " << RegClassID << " ...\n";
// pre-color IGNodes
pushAllIGNodes(); // push all IG Nodes
@@ -57,7 +64,7 @@
// push non-constrained IGNodes
bool PushedAll = pushUnconstrainedIGNodes();
- if( DEBUG_RA) {
+ if( DEBUG_RA >= RA_DEBUG_Coloring) {
cerr << " Puhsed all-unconstrained IGNodes. ";
if( PushedAll ) cerr << " No constrained nodes left.";
cerr << "\n";
@@ -88,7 +95,7 @@
//
NeedMoreSpills = !pushUnconstrainedIGNodes();
- if (DEBUG_RA)
+ if (DEBUG_RA >= RA_DEBUG_Coloring)
cerr << "\nConstrained IG Node found !@!" << IGNodeSpill->getIndex();
} while(NeedMoreSpills); // repeat until we have pushed all
@@ -129,7 +136,7 @@
IGNodeStack.push( IGNode ); // push IGNode on to the stack
IGNode->pushOnStack(); // set OnStack and dec deg of neighs
- if (DEBUG_RA > 1) {
+ if (DEBUG_RA >= RA_DEBUG_Coloring) {
cerr << " pushed un-constrained IGNode " << IGNode->getIndex() ;
cerr << " on to stack\n";
}
@@ -230,7 +237,7 @@
MRC->colorIGNode(Node, IsColorUsedArr);
}
else {
- if( DEBUG_RA ) {
+ if( DEBUG_RA >= RA_DEBUG_Coloring) {
cerr << " Node " << Node->getIndex();
cerr << " already colored with color " << Node->getColor() << "\n";
}
@@ -238,7 +245,7 @@
if( !Node->hasColor() ) {
- if( DEBUG_RA ) {
+ if( DEBUG_RA >= RA_DEBUG_Coloring) {
cerr << " Node " << Node->getIndex();
cerr << " - could not find a color (needs spilling)\n";
}