ARM LDRD(immediate) assembly parsing and encoding support.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@137244 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/ARMInstrInfo.td b/lib/Target/ARM/ARMInstrInfo.td
index 678ac2a..0aaf676 100644
--- a/lib/Target/ARM/ARMInstrInfo.td
+++ b/lib/Target/ARM/ARMInstrInfo.td
@@ -710,20 +710,26 @@
// addrmode3 := reg +/- reg
// addrmode3 := reg +/- imm8
//
-//def AddrMode3AsmOperand : AsmOperandClass { let Name = "AddrMode3"; }
+// FIXME: split into imm vs. reg versions.
+def AddrMode3AsmOperand : AsmOperandClass { let Name = "AddrMode3"; }
def addrmode3 : Operand<i32>,
ComplexPattern<i32, 3, "SelectAddrMode3", []> {
let EncoderMethod = "getAddrMode3OpValue";
let PrintMethod = "printAddrMode3Operand";
+ let ParserMatchClass = AddrMode3AsmOperand;
let MIOperandInfo = (ops GPR:$base, GPR:$offsreg, i32imm:$offsimm);
}
+// FIXME: split into imm vs. reg versions.
+// FIXME: parser method to handle +/- register.
+def AM3OffsetAsmOperand : AsmOperandClass { let Name = "AM3Offset"; }
def am3offset : Operand<i32>,
ComplexPattern<i32, 2, "SelectAddrMode3Offset",
[], [SDNPWantRoot]> {
let EncoderMethod = "getAddrMode3OffsetOpValue";
let DecoderMethod = "DecodeAddrMode3Offset";
let PrintMethod = "printAddrMode3OffsetOperand";
+ let ParserMatchClass = AM3OffsetAsmOperand;
let MIOperandInfo = (ops GPR, i32imm);
}
@@ -2030,20 +2036,22 @@
let Inst{11-8} = addr{7-4}; // imm7_4/zero
let Inst{3-0} = addr{3-0}; // imm3_0/Rm
let DecoderMethod = "DecodeAddrMode3Instruction";
+ let AsmMatchConverter = "cvtLdrdPre";
}
def LDRD_POST: AI3ldstidx<0b1101, 0, 1, 0, (outs GPR:$Rt, GPR:$Rt2, GPR:$Rn_wb),
- (ins GPR:$Rn, am3offset:$offset), IndexModePost,
- LdMiscFrm, IIC_iLoad_d_ru,
- "ldrd", "\t$Rt, $Rt2, [$Rn], $offset",
- "$Rn = $Rn_wb", []> {
+ (ins addr_offset_none:$addr, am3offset:$offset),
+ IndexModePost, LdMiscFrm, IIC_iLoad_d_ru,
+ "ldrd", "\t$Rt, $Rt2, $addr, $offset",
+ "$addr.base = $Rn_wb", []> {
bits<10> offset;
- bits<4> Rn;
+ bits<4> addr;
let Inst{23} = offset{8}; // U bit
let Inst{22} = offset{9}; // 1 == imm8, 0 == Rm
- let Inst{19-16} = Rn;
+ let Inst{19-16} = addr;
let Inst{11-8} = offset{7-4}; // imm7_4/zero
let Inst{3-0} = offset{3-0}; // imm3_0/Rm
let DecoderMethod = "DecodeAddrMode3Instruction";
+// let AsmMatchConverter = "cvtLdrdPost";
}
} // hasExtraDefRegAllocReq = 1
} // mayLoad = 1, neverHasSideEffects = 1