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https://github.com/c64scene-ar/llvm-6502.git
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f4de63f65f
out how to run a collection of passes optimially given their behaviors and charactaristics. Convert code to use it. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@1507 91177308-0d34-0410-b5e6-96231b3b80d8
40 lines
1.3 KiB
C++
40 lines
1.3 KiB
C++
//===- llvm/Transforms/LowerAllocations.h - Remove Malloc & Free -*- C++ -*--=//
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//
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// This file defines the interface to a pass that lowers malloc and free
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// instructions to calls to %malloc & %free functions. This transformation is
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// a target dependant tranformation because we depend on the size of data types
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// and alignment constraints.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_TRANSFORMS_LOWERALLOCATIONS_H
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#define LLVM_TRANSFORMS_LOWERALLOCATIONS_H
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#include "llvm/Pass.h"
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class TargetData;
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class LowerAllocations : public MethodPass {
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Method *MallocMeth; // Methods in the module we are processing
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Method *FreeMeth; // Initialized by doPassInitializationVirt
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const TargetData &DataLayout;
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public:
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inline LowerAllocations(const TargetData &TD) : DataLayout(TD) {
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MallocMeth = FreeMeth = 0;
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}
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// doPassInitialization - For the lower allocations pass, this ensures that a
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// module contains a declaration for a malloc and a free function.
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//
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// This function is always successful.
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//
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bool doInitialization(Module *M);
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// doPerMethodWork - This method does the actual work of converting
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// instructions over, assuming that the pass has already been initialized.
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//
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bool runOnMethod(Method *M);
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};
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#endif
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