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-rw-r--r--include/llvm/Analysis/CodeMetrics.h72
-rw-r--r--include/llvm/Analysis/InlineCost.h45
2 files changed, 77 insertions, 40 deletions
diff --git a/include/llvm/Analysis/CodeMetrics.h b/include/llvm/Analysis/CodeMetrics.h
new file mode 100644
index 0000000..58096f1
--- /dev/null
+++ b/include/llvm/Analysis/CodeMetrics.h
@@ -0,0 +1,72 @@
+//===- CodeMetrics.h - Measures the weight of a function---------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file implements various weight measurements for a function, helping
+// the Inliner and PartialSpecialization decide whether to duplicate its
+// contents.
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_ANALYSIS_CODEMETRICS_H
+#define LLVM_ANALYSIS_CODEMETRICS_H
+
+namespace llvm {
+ // CodeMetrics - Calculate size and a few similar metrics for a set of
+ // basic blocks.
+ struct CodeMetrics {
+ /// NeverInline - True if this callee should never be inlined into a
+ /// caller.
+ // bool NeverInline;
+
+ // True if this function contains a call to setjmp or _setjmp
+ bool callsSetJmp;
+
+ // True if this function calls itself
+ bool isRecursive;
+
+ // True if this function contains one or more indirect branches
+ bool containsIndirectBr;
+
+ /// usesDynamicAlloca - True if this function calls alloca (in the C sense).
+ bool usesDynamicAlloca;
+
+ /// NumInsts, NumBlocks - Keep track of how large each function is, which
+ /// 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;
+
+ /// NumVectorInsts - Keep track of how many instructions produce vector
+ /// values. The inliner is being more aggressive with inlining vector
+ /// kernels.
+ unsigned NumVectorInsts;
+
+ /// NumRets - Keep track of how many Ret instructions the block contains.
+ unsigned NumRets;
+
+ CodeMetrics() : callsSetJmp(false), isRecursive(false),
+ containsIndirectBr(false), usesDynamicAlloca(false),
+ NumInsts(0), NumBlocks(0), NumCalls(0), NumVectorInsts(0),
+ NumRets(0) {}
+
+ /// analyzeBasicBlock - Add information about the specified basic block
+ /// to the current structure.
+ void analyzeBasicBlock(const BasicBlock *BB);
+
+ /// analyzeFunction - Add information about the specified function
+ /// to the current structure.
+ void analyzeFunction(Function *F);
+ };
+}
+
+#endif
diff --git a/include/llvm/Analysis/InlineCost.h b/include/llvm/Analysis/InlineCost.h
index cac7cfe..462bddd 100644
--- a/include/llvm/Analysis/InlineCost.h
+++ b/include/llvm/Analysis/InlineCost.h
@@ -19,6 +19,7 @@
#include <vector>
#include "llvm/ADT/DenseMap.h"
#include "llvm/ADT/ValueMap.h"
+#include "llvm/Analysis/CodeMetrics.h"
namespace llvm {
@@ -29,46 +30,6 @@ namespace llvm {
template<class PtrType, unsigned SmallSize>
class SmallPtrSet;
- // CodeMetrics - Calculate size and a few similar metrics for a set of
- // basic blocks.
- struct CodeMetrics {
- /// NeverInline - True if this callee should never be inlined into a
- /// caller.
- bool NeverInline;
-
- /// usesDynamicAlloca - True if this function calls alloca (in the C sense).
- bool usesDynamicAlloca;
-
- /// NumInsts, NumBlocks - Keep track of how large each function is, which
- /// 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;
-
- /// NumVectorInsts - Keep track of how many instructions produce vector
- /// values. The inliner is being more aggressive with inlining vector
- /// kernels.
- unsigned NumVectorInsts;
-
- /// NumRets - Keep track of how many Ret instructions the block contains.
- unsigned NumRets;
-
- CodeMetrics() : NeverInline(false), usesDynamicAlloca(false), NumInsts(0),
- NumBlocks(0), NumCalls(0), NumVectorInsts(0), NumRets(0) {}
-
- /// analyzeBasicBlock - Add information about the specified basic block
- /// to the current structure.
- void analyzeBasicBlock(const BasicBlock *BB);
-
- /// analyzeFunction - Add information about the specified function
- /// to the current structure.
- void analyzeFunction(Function *F);
- };
-
namespace InlineConstants {
// Various magic constants used to adjust heuristics.
const int InstrCost = 5;
@@ -163,6 +124,10 @@ namespace llvm {
/// analyzeFunction - Add information about the specified function
/// to the current structure.
void analyzeFunction(Function *F);
+
+ /// NeverInline - Returns true if the function should never be
+ /// inlined into any caller.
+ bool NeverInline();
};
// The Function* for a function can be changed (by ArgumentPromotion);