[mips] Use uimm5 and uimm6 instead of shamt and imm, if the immediate has to fit

[oota-llvm.git] / lib / Target / Mips / MicroMipsInstrInfo.td

diff --git a/lib/Target/Mips/MicroMipsInstrInfo.td b/lib/Target/Mips/MicroMipsInstrInfo.td
index 2cc5555305460e2659c11c9a2a4b1af240d473ea..eaf2f31c3bf82e38ec879956e9fca56356b1d35b 100644 (file)
--- a/lib/Target/Mips/MicroMipsInstrInfo.td
+++ b/lib/Target/Mips/MicroMipsInstrInfo.td
@@ -19,6 +19,7 @@ class LoadLeftRightMM<string opstr, SDNode OpNode, RegisterOperand RO,
          !strconcat(opstr, "\t$rt, $addr"),
          [(set RO:$rt, (OpNode addrimm12:$addr, RO:$src))],
          NoItinerary, FrmI> {
+  let DecoderMethod = "DecodeMemMMImm12";
   string Constraints = "$src = $rt";
 }
 
@@ -26,7 +27,9 @@ class StoreLeftRightMM<string opstr, SDNode OpNode, RegisterOperand RO,
                        Operand MemOpnd>:
   InstSE<(outs), (ins RO:$rt, MemOpnd:$addr),
          !strconcat(opstr, "\t$rt, $addr"),
-         [(OpNode RO:$rt, addrimm12:$addr)], NoItinerary, FrmI>;
+         [(OpNode RO:$rt, addrimm12:$addr)], NoItinerary, FrmI> {
+  let DecoderMethod = "DecodeMemMMImm12";
+}
 
 let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
   /// Arithmetic Instructions (ALU Immediate)
@@ -68,11 +71,11 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
                  MULT_FM_MM<0x26c>;
 
   /// Shift Instructions
-  def SLL_MM   : MMRel, shift_rotate_imm<"sll", shamt, GPR32Opnd>,
+  def SLL_MM   : MMRel, shift_rotate_imm<"sll", uimm5, GPR32Opnd>,
                  SRA_FM_MM<0, 0>;
-  def SRL_MM   : MMRel, shift_rotate_imm<"srl", shamt, GPR32Opnd>,
+  def SRL_MM   : MMRel, shift_rotate_imm<"srl", uimm5, GPR32Opnd>,
                  SRA_FM_MM<0x40, 0>;
-  def SRA_MM   : MMRel, shift_rotate_imm<"sra", shamt, GPR32Opnd>,
+  def SRA_MM   : MMRel, shift_rotate_imm<"sra", uimm5, GPR32Opnd>,
                  SRA_FM_MM<0x80, 0>;
   def SLLV_MM  : MMRel, shift_rotate_reg<"sllv", GPR32Opnd>,
                  SRLV_FM_MM<0x10, 0>;
@@ -80,20 +83,22 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
                  SRLV_FM_MM<0x50, 0>;
   def SRAV_MM  : MMRel, shift_rotate_reg<"srav", GPR32Opnd>,
                  SRLV_FM_MM<0x90, 0>;
-  def ROTR_MM  : MMRel, shift_rotate_imm<"rotr", shamt, GPR32Opnd>,
+  def ROTR_MM  : MMRel, shift_rotate_imm<"rotr", uimm5, GPR32Opnd>,
                  SRA_FM_MM<0xc0, 0>;
   def ROTRV_MM : MMRel, shift_rotate_reg<"rotrv", GPR32Opnd>,
                  SRLV_FM_MM<0xd0, 0>;
 
   /// Load and Store Instructions - aligned
-  def LB_MM  : Load<"lb", GPR32Opnd, sextloadi8>, MMRel, LW_FM_MM<0x7>;
-  def LBu_MM : Load<"lbu", GPR32Opnd, zextloadi8>, MMRel, LW_FM_MM<0x5>;
-  def LH_MM  : Load<"lh", GPR32Opnd, sextloadi16>, MMRel, LW_FM_MM<0xf>;
-  def LHu_MM : Load<"lhu", GPR32Opnd, zextloadi16>, MMRel, LW_FM_MM<0xd>;
-  def LW_MM  : Load<"lw", GPR32Opnd>, MMRel, LW_FM_MM<0x3f>;
-  def SB_MM  : Store<"sb", GPR32Opnd, truncstorei8>, MMRel, LW_FM_MM<0x6>;
-  def SH_MM  : Store<"sh", GPR32Opnd, truncstorei16>, MMRel, LW_FM_MM<0xe>;
-  def SW_MM  : Store<"sw", GPR32Opnd>, MMRel, LW_FM_MM<0x3e>;
+  let DecoderMethod = "DecodeMemMMImm16" in {
+    def LB_MM  : Load<"lb", GPR32Opnd>, MMRel, LW_FM_MM<0x7>;
+    def LBu_MM : Load<"lbu", GPR32Opnd>, MMRel, LW_FM_MM<0x5>;
+    def LH_MM  : Load<"lh", GPR32Opnd>, MMRel, LW_FM_MM<0xf>;
+    def LHu_MM : Load<"lhu", GPR32Opnd>, MMRel, LW_FM_MM<0xd>;
+    def LW_MM  : Load<"lw", GPR32Opnd>, MMRel, LW_FM_MM<0x3f>;
+    def SB_MM  : Store<"sb", GPR32Opnd>, MMRel, LW_FM_MM<0x6>;
+    def SH_MM  : Store<"sh", GPR32Opnd>, MMRel, LW_FM_MM<0xe>;
+    def SW_MM  : Store<"sw", GPR32Opnd>, MMRel, LW_FM_MM<0x3e>;
+  }
 
   /// Load and Store Instructions - unaligned
   def LWL_MM : LoadLeftRightMM<"lwl", MipsLWL, GPR32Opnd, mem_mm_12>,
@@ -104,4 +109,30 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
                LWL_FM_MM<0x8>;
   def SWR_MM : StoreLeftRightMM<"swr", MipsSWR, GPR32Opnd, mem_mm_12>,
                LWL_FM_MM<0x9>;
+
+  /// Move Conditional
+  def MOVZ_I_MM : MMRel, CMov_I_I_FT<"movz", GPR32Opnd, GPR32Opnd,
+                  NoItinerary>, ADD_FM_MM<0, 0x58>;
+  def MOVN_I_MM : MMRel, CMov_I_I_FT<"movn", GPR32Opnd, GPR32Opnd,
+                  NoItinerary>, ADD_FM_MM<0, 0x18>;
+  def MOVT_I_MM : MMRel, CMov_F_I_FT<"movt", GPR32Opnd, IIAlu>,
+                  CMov_F_I_FM_MM<0x25>;
+  def MOVF_I_MM : MMRel, CMov_F_I_FT<"movf", GPR32Opnd, IIAlu>,
+                  CMov_F_I_FM_MM<0x5>;
+
+  /// Move to/from HI/LO
+  def MTHI_MM : MMRel, MoveToLOHI<"mthi", GPR32Opnd, [HI0]>,
+                MTLO_FM_MM<0x0b5>;
+  def MTLO_MM : MMRel, MoveToLOHI<"mtlo", GPR32Opnd, [LO0]>,
+                MTLO_FM_MM<0x0f5>;
+  def MFHI_MM : MMRel, MoveFromLOHI<"mfhi", GPR32Opnd, [HI0]>,
+                MFLO_FM_MM<0x035>;
+  def MFLO_MM : MMRel, MoveFromLOHI<"mflo", GPR32Opnd, [LO0]>,
+                MFLO_FM_MM<0x075>;
+
+  /// Multiply Add/Sub Instructions
+  def MADD_MM  : MMRel, MArithR<"madd", 1>, MULT_FM_MM<0x32c>;
+  def MADDU_MM : MMRel, MArithR<"maddu", 1>, MULT_FM_MM<0x36c>;
+  def MSUB_MM  : MMRel, MArithR<"msub">, MULT_FM_MM<0x3ac>;
+  def MSUBU_MM : MMRel, MArithR<"msubu">, MULT_FM_MM<0x3ec>;
 }