Do not overestimate code size reduction in presense of debug info.

Use CodeMetrics.analyzeBasicBlock() to estimate BB size.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98401 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 5 insertions, 1 deletions

diff --git a/include/llvm/Analysis/InlineCost.h b/include/llvm/Analysis/InlineCost.h
index f0e97d7..ea76ec1 100644
--- a/include/llvm/Analysis/InlineCost.h
+++ b/include/llvm/Analysis/InlineCost.h
@@ -18,6 +18,7 @@
 #include <climits>
 #include <map>
 #include <vector>
+#include "llvm/ADT/DenseMap.h"
 
 namespace llvm {
 
@@ -42,6 +43,9 @@ namespace llvm {
     /// is used to estimate the code size cost of inlining it.
     unsigned NumInsts, NumBlocks;
 
+    /// NumBBInsts - Keeps track of basic block code size estimates.
+    DenseMap<const BasicBlock *, unsigned> NumBBInsts;
+
     /// NumCalls - Keep track of the number of calls to 'big' functions.
     unsigned NumCalls;
 
@@ -148,7 +152,7 @@ namespace llvm {
       /// CountCodeReductionForConstant - Figure out an approximation for how
       /// many instructions will be constant folded if the specified value is
       /// constant.
-      unsigned CountCodeReductionForConstant(Value *V);
+      unsigned CountCodeReductionForConstant(Value *V, CodeMetrics &M);
 
       /// CountCodeReductionForAlloca - Figure out an approximation of how much
       /// smaller the function will be if it is inlined into a context where an