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https://github.com/c64scene-ar/llvm-6502.git
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179cdfb5c8
* Fixed file headers to be consistent with the rest of LLVM * Other minor fixes git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@3277 91177308-0d34-0410-b5e6-96231b3b80d8
43 lines
1.5 KiB
C++
43 lines
1.5 KiB
C++
//===-- MachineFrameInfo.cpp-----------------------------------------------===//
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//
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// Interface to layout of stack frame on target machine. Most functions of
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// class MachineFrameInfo have to be machine-specific so there is little code
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// here.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Target/MachineFrameInfo.h"
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#include "llvm/CodeGen/MachineCodeForMethod.h"
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int
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MachineFrameInfo::getIncomingArgOffset(MachineCodeForMethod& mcInfo,
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unsigned argNum) const
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{
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assert(argsOnStackHaveFixedSize());
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unsigned relativeOffset = argNum * getSizeOfEachArgOnStack();
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bool growUp; // do args grow up or down
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int firstArg = getFirstIncomingArgOffset(mcInfo, growUp);
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int offset = growUp? firstArg + relativeOffset
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: firstArg - relativeOffset;
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return offset;
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}
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int
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MachineFrameInfo::getOutgoingArgOffset(MachineCodeForMethod& mcInfo,
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unsigned argNum) const
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{
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assert(argsOnStackHaveFixedSize());
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assert(((int) argNum - this->getNumFixedOutgoingArgs())
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<= (int) mcInfo.getMaxOptionalNumArgs());
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unsigned relativeOffset = argNum * getSizeOfEachArgOnStack();
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bool growUp; // do args grow up or down
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int firstArg = getFirstOutgoingArgOffset(mcInfo, growUp);
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int offset = growUp? firstArg + relativeOffset
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: firstArg - relativeOffset;
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return offset;
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}
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