From cbd056074cfcd79265ee1e04e83f347355e9ad61 Mon Sep 17 00:00:00 2001
From: Devang Patel <dpatel@apple.com>
Date: Sat, 13 Mar 2010 00:10:20 +0000
Subject: 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
---
include/llvm/Analysis/InlineCost.h | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
(limited to 'include')
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
--
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