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New addFrameReference function
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5182 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -20,8 +20,9 @@
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#include "llvm/CodeGen/MachineInstrBuilder.h"
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/// addDirectMem - This function is used to add a direct memory reference to the
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/// current instruction -- that is, a dereference of an address in a register, with
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/// no scale, index or displacement. An example is: DWORD PTR [EAX].
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/// current instruction -- that is, a dereference of an address in a register,
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/// with no scale, index or displacement. An example is: DWORD PTR [EAX].
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///
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inline const MachineInstrBuilder &addDirectMem(const MachineInstrBuilder &MIB,
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unsigned Reg) {
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// Because memory references are always represented with four
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@ -30,12 +31,23 @@ inline const MachineInstrBuilder &addDirectMem(const MachineInstrBuilder &MIB,
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}
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/// addRegOffset - This function is used to add a memory reference of
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/// the form [Reg + Offset], i.e., one with no scale or index, but
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/// with a displacement. An example is: DWORD PTR [EAX + 4].
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/// addRegOffset - This function is used to add a memory reference of the form
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/// [Reg + Offset], i.e., one with no scale or index, but with a
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/// displacement. An example is: DWORD PTR [EAX + 4].
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///
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inline const MachineInstrBuilder &addRegOffset(const MachineInstrBuilder &MIB,
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unsigned Reg, unsigned Offset) {
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unsigned Reg, int Offset) {
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return MIB.addReg(Reg).addZImm(1).addMReg(0).addSImm(Offset);
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}
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/// addFrameReference - This function is used to add a reference to the base of
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/// an abstract object on the stack frame of the current function. This
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/// reference has base register <noreg> and a FrameIndex offset until it is
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/// resolved.
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///
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inline const MachineInstrBuilder &
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addFrameReference(const MachineInstrBuilder &MIB, int FI) {
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return MIB.addReg(0).addZImm(1).addMReg(0).addFrameIndex(FI);
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}
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#endif
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