[llvm-commits] CVS: llvm/include/llvm/Transforms/Utils/Cloning.h
Chris Lattner
lattner at cs.uiuc.edu
Fri May 26 18:22:03 PDT 2006
Changes in directory llvm/include/llvm/Transforms/Utils:
Cloning.h updated: 1.19 -> 1.20
---
Log message:
Implement a new method: CloneAndPruneFunctionInto, as documented.
---
Diffs of the changes: (+13 -0)
Cloning.h | 13 +++++++++++++
1 files changed, 13 insertions(+)
Index: llvm/include/llvm/Transforms/Utils/Cloning.h
diff -u llvm/include/llvm/Transforms/Utils/Cloning.h:1.19 llvm/include/llvm/Transforms/Utils/Cloning.h:1.20
--- llvm/include/llvm/Transforms/Utils/Cloning.h:1.19 Wed May 17 13:05:35 2006
+++ llvm/include/llvm/Transforms/Utils/Cloning.h Fri May 26 20:21:50 2006
@@ -130,6 +130,19 @@
const char *NameSuffix = "",
ClonedCodeInfo *CodeInfo = 0);
+/// CloneAndPruneFunctionInto - This works exactly like CloneFunctionInto,
+/// except that it does some simple constant prop and DCE on the fly. The
+/// effect of this is to copy significantly less code in cases where (for
+/// example) a function call with constant arguments is inlined, and those
+/// constant arguments cause a significant amount of code in the callee to be
+/// dead. Since this doesn't produce an exactly copy of the input, it can't be
+/// used for things like CloneFunction or CloneModule.
+void CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc,
+ std::map<const Value*, Value*> &ValueMap,
+ std::vector<ReturnInst*> &Returns,
+ const char *NameSuffix = "",
+ ClonedCodeInfo *CodeInfo = 0);
+
/// CloneTraceInto - Clone T into NewFunc. Original<->clone mapping is
/// saved in ValueMap.
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