From d01b04ad93b713aa7aed0029a1c0b6503c879e05 Mon Sep 17 00:00:00 2001
From: Akira Hatanaka <ahatanaka@mips.com>
Date: Fri, 4 Jan 2013 19:13:49 +0000
Subject: [PATCH] [mips] Refactor instructions which move data from or to
coprocessors.
llvm-svn: 171510
---
lib/Target/Mips/Mips64InstrInfo.td | 32 ++++++++++++++---------------
lib/Target/Mips/MipsInstrFormats.td | 8 +++-----
lib/Target/Mips/MipsInstrInfo.td | 27 +++++++++++++-----------
3 files changed, 34 insertions(+), 33 deletions(-)
diff --git a/lib/Target/Mips/Mips64InstrInfo.td b/lib/Target/Mips/Mips64InstrInfo.td
index 552817704d3..2a1ed3a58c6 100644
--- a/lib/Target/Mips/Mips64InstrInfo.td
+++ b/lib/Target/Mips/Mips64InstrInfo.td
@@ -308,22 +308,22 @@ def : InstAlias<"move $dst,$src", (DADD CPU64Regs:$dst,CPU64Regs:$src,ZERO_64)>;
/// Move between CPU and coprocessor registers
let DecoderNamespace = "Mips64" in {
-def MFC0_3OP64 : MFC3OP<0x10, 0, (outs CPU64Regs:$rt),
- (ins CPU64Regs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
-def MTC0_3OP64 : MFC3OP<0x10, 4, (outs CPU64Regs:$rd, uimm16:$sel),
- (ins CPU64Regs:$rt),"mtc0\t$rt, $rd, $sel">;
-def MFC2_3OP64 : MFC3OP<0x12, 0, (outs CPU64Regs:$rt),
- (ins CPU64Regs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
-def MTC2_3OP64 : MFC3OP<0x12, 4, (outs CPU64Regs:$rd, uimm16:$sel),
- (ins CPU64Regs:$rt),"mtc2\t$rt, $rd, $sel">;
-def DMFC0_3OP64 : MFC3OP<0x10, 1, (outs CPU64Regs:$rt),
- (ins CPU64Regs:$rd, uimm16:$sel),"dmfc0\t$rt, $rd, $sel">;
-def DMTC0_3OP64 : MFC3OP<0x10, 5, (outs CPU64Regs:$rd, uimm16:$sel),
- (ins CPU64Regs:$rt),"dmtc0\t$rt, $rd, $sel">;
-def DMFC2_3OP64 : MFC3OP<0x12, 1, (outs CPU64Regs:$rt),
- (ins CPU64Regs:$rd, uimm16:$sel),"dmfc2\t$rt, $rd, $sel">;
-def DMTC2_3OP64 : MFC3OP<0x12, 5, (outs CPU64Regs:$rd, uimm16:$sel),
- (ins CPU64Regs:$rt),"dmtc2\t$rt, $rd, $sel">;
+def MFC0_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
+ "mfc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 0>;
+def MTC0_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
+ "mtc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 4>;
+def MFC2_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
+ "mfc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 0>;
+def MTC2_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
+ "mtc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 4>;
+def DMFC0_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
+ "dmfc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 1>;
+def DMTC0_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
+ "dmtc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 5>;
+def DMFC2_3OP64 : MFC3OP<(outs CPU64Regs:$rt), (ins CPU64Regs:$rd, uimm16:$sel),
+ "dmfc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 1>;
+def DMTC2_3OP64 : MFC3OP<(outs CPU64Regs:$rd, uimm16:$sel), (ins CPU64Regs:$rt),
+ "dmtc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 5>;
}
// Two operand (implicit 0 selector) versions:
def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP64 CPU64Regs:$rt, CPU64Regs:$rd, 0)>;
diff --git a/lib/Target/Mips/MipsInstrFormats.td b/lib/Target/Mips/MipsInstrFormats.td
index 5edaf18fc45..b9f24b82c5f 100644
--- a/lib/Target/Mips/MipsInstrFormats.td
+++ b/lib/Target/Mips/MipsInstrFormats.td
@@ -176,17 +176,15 @@ class FJ<bits<6> op>
//===----------------------------------------------------------------------===//
// MFC instruction class in Mips : <|op|mf|rt|rd|0000000|sel|>
//===----------------------------------------------------------------------===//
-class MFC3OP<bits<6> op, bits<5> _mfmt, dag outs, dag ins, string asmstr>:
- InstSE<outs, ins, asmstr, [], NoItinerary, FrmFR>
+class MFC3OP_FM<bits<6> op, bits<5> mfmt>
{
- bits<5> mfmt;
bits<5> rt;
bits<5> rd;
bits<3> sel;
- let Opcode = op;
- let mfmt = _mfmt;
+ bits<32> Inst;
+ let Inst{31-26} = op;
let Inst{25-21} = mfmt;
let Inst{20-16} = rt;
let Inst{15-11} = rd;
diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index 5c734bca5ac..15c1fcc603d 100644
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -710,6 +710,9 @@ class SCBase<string opstr, RegisterClass RC, Operand Mem> :
let Constraints = "$rt = $dst";
}
+class MFC3OP<dag outs, dag ins, string asmstr> :
+ InstSE<outs, ins, asmstr, [], NoItinerary, FrmFR>;
+
//===----------------------------------------------------------------------===//
// Pseudo instructions
//===----------------------------------------------------------------------===//
@@ -897,21 +900,17 @@ def EXT : ExtBase<"ext", CPURegs>, EXT_FM<0>;
def INS : InsBase<"ins", CPURegs>, EXT_FM<4>;
/// Move Control Registers From/To CPU Registers
-def MFC0_3OP : MFC3OP<0x10, 0, (outs CPURegs:$rt),
- (ins CPURegs:$rd, uimm16:$sel),"mfc0\t$rt, $rd, $sel">;
-def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
+def MFC0_3OP : MFC3OP<(outs CPURegs:$rt), (ins CPURegs:$rd, uimm16:$sel),
+ "mfc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 0>;
-def MTC0_3OP : MFC3OP<0x10, 4, (outs CPURegs:$rd, uimm16:$sel),
- (ins CPURegs:$rt),"mtc0\t$rt, $rd, $sel">;
-def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
+def MTC0_3OP : MFC3OP<(outs CPURegs:$rd, uimm16:$sel), (ins CPURegs:$rt),
+ "mtc0\t$rt, $rd, $sel">, MFC3OP_FM<0x10, 4>;
-def MFC2_3OP : MFC3OP<0x12, 0, (outs CPURegs:$rt),
- (ins CPURegs:$rd, uimm16:$sel),"mfc2\t$rt, $rd, $sel">;
-def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
+def MFC2_3OP : MFC3OP<(outs CPURegs:$rt), (ins CPURegs:$rd, uimm16:$sel),
+ "mfc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 0>;
-def MTC2_3OP : MFC3OP<0x12, 4, (outs CPURegs:$rd, uimm16:$sel),
- (ins CPURegs:$rt),"mtc2\t$rt, $rd, $sel">;
-def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
+def MTC2_3OP : MFC3OP<(outs CPURegs:$rd, uimm16:$sel), (ins CPURegs:$rt),
+ "mtc2\t$rt, $rd, $sel">, MFC3OP_FM<0x12, 4>;
//===----------------------------------------------------------------------===//
// Instruction aliases
@@ -932,6 +931,10 @@ def : InstAlias<"slt $rs,$rt,$imm",
(SLTi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
def : InstAlias<"xor $rs,$rt,$imm",
(XORi CPURegs:$rs,CPURegs:$rt,simm16:$imm)>;
+def : InstAlias<"mfc0 $rt, $rd", (MFC0_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
+def : InstAlias<"mtc0 $rt, $rd", (MTC0_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
+def : InstAlias<"mfc2 $rt, $rd", (MFC2_3OP CPURegs:$rt, CPURegs:$rd, 0)>;
+def : InstAlias<"mtc2 $rt, $rd", (MTC2_3OP CPURegs:$rd, 0, CPURegs:$rt)>;
//===----------------------------------------------------------------------===//
// Assembler Pseudo Instructions