[llvm-branch-commits] [llvm-branch] r125261 - /llvm/branches/Apple/Morbo/lib/Analysis/InlineCost.cpp

[Eric Christopher]

Author: echristo
Date: Wed Feb  9 20:59:44 2011
New Revision: 125261

URL: http://llvm.org/viewvc/llvm-project?rev=125261&view=rev
Log:
Check in the "simple hack" for inlining functions with calls to functions
that will be devirtualized by the inlining. Reduce the per-function call
bonus to a single bonus per function inlined.

rdar://8546196

Modified:
    llvm/branches/Apple/Morbo/lib/Analysis/InlineCost.cpp

Modified: llvm/branches/Apple/Morbo/lib/Analysis/InlineCost.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/branches/Apple/Morbo/lib/Analysis/InlineCost.cpp?rev=125261&r1=125260&r2=125261&view=diff
==============================================================================
--- llvm/branches/Apple/Morbo/lib/Analysis/InlineCost.cpp (original)
+++ llvm/branches/Apple/Morbo/lib/Analysis/InlineCost.cpp Wed Feb  9 20:59:44 2011
@@ -24,6 +24,7 @@
 unsigned InlineCostAnalyzer::FunctionInfo::
 CountCodeReductionForConstant(Value *V) {
   unsigned Reduction = 0;
+  bool indirectCallBonus = false;
   for (Value::use_iterator UI = V->use_begin(), E = V->use_end(); UI != E; ++UI)
     if (isa<BranchInst>(*UI) || isa<SwitchInst>(*UI)) {
       // We will be able to eliminate all but one of the successors.
@@ -37,11 +38,11 @@
     } else if (CallInst *CI = dyn_cast<CallInst>(*UI)) {
       // Turning an indirect call into a direct call is a BIG win
       if (CI->getCalledValue() == V)
-        Reduction += InlineConstants::IndirectCallBonus;
+	indirectCallBonus = true;
     } else if (InvokeInst *II = dyn_cast<InvokeInst>(*UI)) {
       // Turning an indirect call into a direct call is a BIG win
       if (II->getCalledValue() == V)
-        Reduction += InlineConstants::IndirectCallBonus;
+	indirectCallBonus = true;
     } else {
       // Figure out if this instruction will be removed due to simple constant
       // propagation.
@@ -75,6 +76,7 @@
       }
     }
 
+  if (indirectCallBonus) Reduction += InlineConstants::IndirectCallBonus;
   return Reduction;
 }