[llvm-commits] CVS: llvm/lib/CodeGen/RegAllocLinearScan.cpp

[Nate Begeman]

Changes in directory llvm/lib/CodeGen:

RegAllocLinearScan.cpp updated: 1.103 -> 1.104
---
Log message:

Move virtual function call out of loop to speed up getFreePhysReg by about
20%, shaving 0.1s off hbd compile time on my g5.  Yay.


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Diffs of the changes:  (+2 -2)

Index: llvm/lib/CodeGen/RegAllocLinearScan.cpp
diff -u llvm/lib/CodeGen/RegAllocLinearScan.cpp:1.103 llvm/lib/CodeGen/RegAllocLinearScan.cpp:1.104
--- llvm/lib/CodeGen/RegAllocLinearScan.cpp:1.103	Thu Nov 18 00:01:45 2004
+++ llvm/lib/CodeGen/RegAllocLinearScan.cpp	Mon Dec  6 23:25:53 2004
@@ -608,8 +608,8 @@
   const TargetRegisterClass* rc = mf_->getSSARegMap()->getRegClass(cur->reg);
 
   unsigned freeReg = 0;
-  for (TargetRegisterClass::iterator i = rc->allocation_order_begin(*mf_);
-       i != rc->allocation_order_end(*mf_); ++i) {
+  for (TargetRegisterClass::iterator i = rc->allocation_order_begin(*mf_),
+       e = rc->allocation_order_end(*mf_); i != e; ++i) {
     unsigned reg = *i;
     if (prt_->isRegAvail(reg) &&
         (!freeReg || inactiveCounts[freeReg] < inactiveCounts[reg]))