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[mips] MipsSETargetLowering now reports DAGCombiner changes when using -debug-only=mips-isel

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No test since -debug output is intended for developers and not end-users.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193681 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Daniel Sanders 2013-10-30 13:31:27 +00:00
parent 57cd3bc406
commit aed9334acf
1 changed files with 9 additions and 1 deletions
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10
lib/Target/Mips/MipsSEISelLowering.cpp
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@ -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);
}