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[Sparc] Add support for decoding call instructions in the sparc disassembler.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@202577 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Venkatraman Govindaraju
2014-03-01 08:30:58 +00:00
parent abad3545bd
commit 830156c660
3 changed files with 27 additions and 2 deletions
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21
lib/Target/Sparc/Disassembler/SparcDisassembler.cpp
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@@ -190,6 +190,8 @@ static DecodeStatus DecodeStoreDFP(MCInst &Inst, unsigned insn,
uint64_t Address, const void *Decoder);
static DecodeStatus DecodeStoreQFP(MCInst &Inst, unsigned insn,
uint64_t Address, const void *Decoder);
static DecodeStatus DecodeCall(MCInst &Inst, unsigned insn,
uint64_t Address, const void *Decoder);
#include "SparcGenDisassemblerTables.inc"
@@ -336,3 +338,22 @@ static DecodeStatus DecodeStoreQFP(MCInst &Inst, unsigned insn,
return DecodeMem(Inst, insn, Address, Decoder, false,
DecodeQFPRegsRegisterClass);
}
static bool tryAddingSymbolicOperand(int64_t Value, bool isBranch,
uint64_t Address, uint64_t Offset,
uint64_t Width, MCInst &MI,
const void *Decoder) {
const MCDisassembler *Dis = static_cast<const MCDisassembler*>(Decoder);
return Dis->tryAddingSymbolicOperand(MI, Value, Address, isBranch,
Offset, Width);
}
static DecodeStatus DecodeCall(MCInst &MI, unsigned insn,
uint64_t Address, const void *Decoder) {
unsigned tgt = fieldFromInstruction(insn, 0, 30);
tgt <<= 2;
if (!tryAddingSymbolicOperand(tgt+Address, false, Address,
0, 30, MI, Decoder))
MI.addOperand(MCOperand::CreateImm(tgt));
return MCDisassembler::Success;
}