[llvm-commits] [llvm] r144833 - /llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp

[Chad Rosier]

Author: mcrosier
Date: Wed Nov 16 15:05:28 2011
New Revision: 144833

URL: http://llvm.org/viewvc/llvm-project?rev=144833&view=rev
Log:
Add fast-isel stats to determine who's doing all the work, the 
target-independent selector or the target-specific selector.

Modified:
    llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp

Modified: llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp?rev=144833&r1=144832&r2=144833&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp (original)
+++ llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp Wed Nov 16 15:05:28 2011
@@ -39,6 +39,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#define DEBUG_TYPE "isel"
 #include "llvm/Function.h"
 #include "llvm/GlobalVariable.h"
 #include "llvm/Instructions.h"
@@ -58,8 +59,12 @@
 #include "llvm/Target/TargetMachine.h"
 #include "llvm/Support/ErrorHandling.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/ADT/Statistic.h"
 using namespace llvm;
 
+STATISTIC(NumFastIselSuccessIndependent, "Number of insts selected by target-independent selector");
+STATISTIC(NumFastIselSuccessTarget, "Number of insts selected by target-specific selector");
+
 /// startNewBlock - Set the current block to which generated machine
 /// instructions will be appended, and clear the local CSE map.
 ///
@@ -765,12 +770,14 @@
 
   // First, try doing target-independent selection.
   if (SelectOperator(I, I->getOpcode())) {
+    ++NumFastIselSuccessIndependent;
     DL = DebugLoc();
     return true;
   }
 
   // Next, try calling the target to attempt to handle the instruction.
   if (TargetSelectInstruction(I)) {
+    ++NumFastIselSuccessTarget;
     DL = DebugLoc();
     return true;
   }