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bd0ef77cde
creation functions in their public header file, unless they can help it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1816 91177308-0d34-0410-b5e6-96231b3b80d8
25 lines
1012 B
C++
25 lines
1012 B
C++
//===- llvm/Transforms/ConstantMerge.h - Merge duplicate consts --*- C++ -*--=//
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//
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// This file defines the interface to a pass that merges duplicate global
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// constants together into a single constant that is shared. This is useful
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// because some passes (ie TraceValues) insert a lot of string constants into
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// the program, regardless of whether or not they duplicate an existing string.
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//
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// Algorithm: ConstantMerge is designed to build up a map of available constants
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// and elminate duplicates when it is initialized.
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//
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// The DynamicConstantMerge method is a superset of the ConstantMerge algorithm
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// that checks for each method to see if constants have been added to the
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// constant pool since it was last run... if so, it processes them.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_CONSTANTMERGE_H
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#define LLVM_TRANSFORMS_CONSTANTMERGE_H
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class Pass;
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Pass *createConstantMergePass();
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Pass *createDynamicConstantMergePass();
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#endif
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