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| author | Zoran Jovanovic <zoran.jovanovic@imgtec.com> | 2013-11-04 14:53:22 +0000 |
|---|---|---|
| committer | Zoran Jovanovic <zoran.jovanovic@imgtec.com> | 2013-11-04 14:53:22 +0000 |
| commit | 8a80aa76c81c2bed7939938ffc6754850bf46488 (patch) | |
| tree | cc0b25b42f94f85b62ce23223ad5c476917a4ff6 /llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp | |
| parent | d6f14d98c2ac47d172a3db01a6af04ea11486182 (diff) | |
| download | bcm5719-llvm-8a80aa76c81c2bed7939938ffc6754850bf46488.tar.gz bcm5719-llvm-8a80aa76c81c2bed7939938ffc6754850bf46488.zip | |
Support for microMIPS branch instructions.
llvm-svn: 193992
Diffstat (limited to 'llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp')
| -rw-r--r-- | llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp b/llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp index f9bf1aff5ee..b890d3a887c 100644 --- a/llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp +++ b/llvm/lib/Target/Mips/Disassembler/MipsDisassembler.cpp @@ -205,6 +205,13 @@ static DecodeStatus DecodeJumpTarget(MCInst &Inst, uint64_t Address, const void *Decoder); +// DecodeBranchTargetMM - Decode microMIPS branch offset, which is +// shifted left by 1 bit. +static DecodeStatus DecodeBranchTargetMM(MCInst &Inst, + unsigned Offset, + uint64_t Address, + const void *Decoder); + // DecodeJumpTargetMM - Decode microMIPS jump target, which is // shifted left by 1 bit. static DecodeStatus DecodeJumpTargetMM(MCInst &Inst, @@ -751,6 +758,16 @@ static DecodeStatus DecodeJumpTarget(MCInst &Inst, return MCDisassembler::Success; } +static DecodeStatus DecodeBranchTargetMM(MCInst &Inst, + unsigned Offset, + uint64_t Address, + const void *Decoder) { + unsigned BranchOffset = Offset & 0xffff; + BranchOffset = SignExtend32<18>(BranchOffset << 1); + Inst.addOperand(MCOperand::CreateImm(BranchOffset)); + return MCDisassembler::Success; +} + static DecodeStatus DecodeJumpTargetMM(MCInst &Inst, unsigned Insn, uint64_t Address, |
