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Add CPS, MRS, MRSsys, MSR, MSRsys for disassembly only.

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llvm-svn: 95999
This commit is contained in:
Johnny Chen 2010-02-12 18:55:33 +00:00
parent c7b5b1dcfa
commit 473d813c5d
1 changed files with 44 additions and 0 deletions
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44
lib/Target/ARM/ARMInstrInfo.td
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@ -621,6 +621,21 @@ def BKPT : AI<(outs), (ins i32imm:$val), Pseudo, NoItinerary, "bkpt", "\t$val",
let Inst{7-4} = 0b0111;
}
// Change Processor State is a system instruction -- for disassembly only.
// The singleton $opt operand contains the following information:
// opt{4-0} = mode from Inst{4-0}
// opt{5} = changemode from Inst{17}
// opt{8-6} = AIF from Inst{8-6}
// opt{10-9} = imod from Inst{19-18} with 0b10 as enable and 0b11 as disable
def CPS : AXI<(outs),(ins i32imm:$opt), Pseudo, NoItinerary, "cps${opt:cps}",
[/* For disassembly only; pattern left blank */]>,
Requires<[IsARM]> {
let Inst{31-28} = 0b1111;
let Inst{27-20} = 0b00010000;
let Inst{16} = 0;
let Inst{5} = 0;
}
def DBG : AI<(outs), (ins i32imm:$opt), Pseudo, NoItinerary, "dbg", "\t$opt",
[/* For disassembly only; pattern left blank */]>,
Requires<[IsARM, HasV7]> {
@ -2114,3 +2129,32 @@ def MRRC2 : ABXI<0b1100, (outs), (ins nohash_imm:$cop, i32imm:$opc,
let Inst{23-20} = 0b0101;
}
//===----------------------------------------------------------------------===//
// Move between special register and ARM core register -- for disassembly only
//
def MRS : ABI<0b0001,(outs GPR:$dst),(ins), NoItinerary, "mrs", "\t$dst, cpsr",
[/* For disassembly only; pattern left blank */]> {
let Inst{23-20} = 0b0000;
let Inst{7-4} = 0b0000;
}
def MRSsys : ABI<0b0001,(outs GPR:$dst),(ins), NoItinerary,"mrs","\t$dst, spsr",
[/* For disassembly only; pattern left blank */]> {
let Inst{23-20} = 0b0100;
let Inst{7-4} = 0b0000;
}
// FIXME: mask is ignored for the time being.
def MSR : ABI<0b0001,(outs),(ins GPR:$src), NoItinerary, "mrs", "\tcpsr, $src",
[/* For disassembly only; pattern left blank */]> {
let Inst{23-20} = 0b0010;
let Inst{7-4} = 0b0000;
}
// FIXME: mask is ignored for the time being.
def MSRsys : ABI<0b0001,(outs),(ins GPR:$src),NoItinerary,"mrs","\tspsr, $src",
[/* For disassembly only; pattern left blank */]> {
let Inst{23-20} = 0b0110;
let Inst{7-4} = 0b0000;
}