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This patch moves from using a hard coded number (4)

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for the number of bytes in a particular instruction
to using
   const MCInstrDesc &Desc = MCII.get(TmpInst.getOpcode());
   Desc.getSize()

This is necessary with the advent of 16 bit instructions with
mips16 and micromips. It is also puts Mips in compliance with
the other targets for getting instruction size.

llvm-svn: 165171
This commit is contained in:
Jack Carter 2012-10-03 21:58:54 +00:00
parent b3025c6bf1
commit 4b2b328da8
1 changed files with 4 additions and 2 deletions
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6
lib/Target/Mips/MCTargetDesc/MipsMCCodeEmitter.cpp
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@ -146,8 +146,10 @@ EncodeInstruction(const MCInst &MI, raw_ostream &OS,
if ((TSFlags & MipsII::FormMask) == MipsII::Pseudo)
llvm_unreachable("Pseudo opcode found in EncodeInstruction()");
// For now all instructions are 4 bytes
int Size = 4; // FIXME: Have Desc.getSize() return the correct value!
// Get byte count of instruction
unsigned Size = Desc.getSize();
if (!Size)
llvm_unreachable("Desc.getSize() returns 0");
EmitInstruction(Binary, Size, OS);
}