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-rw-r--r--lib/Target/Mips/MipsSEISelLowering.cpp10
1 files changed, 9 insertions, 1 deletions
diff --git a/lib/Target/Mips/MipsSEISelLowering.cpp b/lib/Target/Mips/MipsSEISelLowering.cpp
index c1f9a1ff5e..fc536bb67c 100644
--- a/lib/Target/Mips/MipsSEISelLowering.cpp
+++ b/lib/Target/Mips/MipsSEISelLowering.cpp
@@ -10,6 +10,7 @@
// Subclass of MipsTargetLowering specialized for mips32/64.
//
//===----------------------------------------------------------------------===//
+#define DEBUG_TYPE "mips-isel"
#include "MipsSEISelLowering.h"
#include "MipsRegisterInfo.h"
#include "MipsTargetMachine.h"
@@ -17,6 +18,7 @@
#include "llvm/CodeGen/MachineRegisterInfo.h"
#include "llvm/IR/Intrinsics.h"
#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/Debug.h"
#include "llvm/Target/TargetInstrInfo.h"
using namespace llvm;
@@ -795,8 +797,14 @@ MipsSETargetLowering::PerformDAGCombine(SDNode *N, DAGCombinerInfo &DCI) const {
break;
}
- if (Val.getNode())
+ if (Val.getNode()) {
+ DEBUG(dbgs() << "\nMipsSE DAG Combine:\n";
+ N->printrWithDepth(dbgs(), &DAG);
+ dbgs() << "\n=> \n";
+ Val.getNode()->printrWithDepth(dbgs(), &DAG);
+ dbgs() << "\n");
return Val;
+ }
return MipsTargetLowering::PerformDAGCombine(N, DCI);
}