[mips][microMIPS] Implement TLBP, TLBR, TLBWI and TLBWR instructions

Differential Revision: http://reviews.llvm.org/D5211

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217675 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/Mips/MicroMipsInstrFormats.td b/lib/Target/Mips/MicroMipsInstrFormats.td
index 90fbce724783d7a4091801364ef8dfb533b597b7..0a17ab6bc17afddec238edc7e8e2f1fbd6a27a5a 100644 (file)
--- a/lib/Target/Mips/MicroMipsInstrFormats.td
+++ b/lib/Target/Mips/MicroMipsInstrFormats.td
@@ -633,3 +633,12 @@ class COMPACT_BRANCH_FM_MM<bits<5> funct> {
   let Inst{20-16} = rs;
   let Inst{15-0}  = offset;
 }
+
+class COP0_TLB_FM_MM<bits<10> op> : MMArch {
+  bits<32> Inst;
+
+  let Inst{31-26} = 0x0;
+  let Inst{25-16} = 0x0;
+  let Inst{15-6}  = op;
+  let Inst{5-0}   = 0x3c;
+}

diff --git a/lib/Target/Mips/MicroMipsInstrInfo.td b/lib/Target/Mips/MicroMipsInstrInfo.td
index f48083bbe6e7f5af66fea6952119b359a3acd7d5..4ffa74439fe5795f366ae24768e52867e5de7fe2 100644 (file)
--- a/lib/Target/Mips/MicroMipsInstrInfo.td
+++ b/lib/Target/Mips/MicroMipsInstrInfo.td
@@ -311,6 +311,11 @@ let DecoderNamespace = "MicroMips", Predicates = [InMicroMips] in {
   /// Load-linked, Store-conditional
   def LL_MM : LLBaseMM<"ll", GPR32Opnd>, LL_FM_MM<0x3>;
   def SC_MM : SCBaseMM<"sc", GPR32Opnd>, LL_FM_MM<0xb>;
+
+  def TLBP_MM : MMRel, TLB<"tlbp">, COP0_TLB_FM_MM<0x0d>;
+  def TLBR_MM : MMRel, TLB<"tlbr">, COP0_TLB_FM_MM<0x4d>;
+  def TLBWI_MM : MMRel, TLB<"tlbwi">, COP0_TLB_FM_MM<0x8d>;
+  def TLBWR_MM : MMRel, TLB<"tlbwr">, COP0_TLB_FM_MM<0xcd>;
 }
 
 //===----------------------------------------------------------------------===//

diff --git a/lib/Target/Mips/MipsInstrInfo.td b/lib/Target/Mips/MipsInstrInfo.td
index e86c5e55254bcbc520e7e613897f6ac61b52f6b2..90f98ba118714b53683785bf9acfb8fd44a39d58 100644 (file)
--- a/lib/Target/Mips/MipsInstrInfo.td
+++ b/lib/Target/Mips/MipsInstrInfo.td
@@ -1409,11 +1409,11 @@ def JR_HB : JR_HB_DESC, JR_HB_ENC, ISA_MIPS32_NOT_32R6_64R6;
 def JALR_HB : JALR_HB_DESC, JALR_HB_ENC, ISA_MIPS32;
 
 class TLB<string asmstr> : InstSE<(outs), (ins), asmstr, [], NoItinerary,
-                                      FrmOther>;
-def TLBP : TLB<"tlbp">, COP0_TLB_FM<0x08>;
-def TLBR : TLB<"tlbr">, COP0_TLB_FM<0x01>;
-def TLBWI : TLB<"tlbwi">, COP0_TLB_FM<0x02>;
-def TLBWR : TLB<"tlbwr">, COP0_TLB_FM<0x06>;
+                                      FrmOther, asmstr>;
+def TLBP : MMRel, TLB<"tlbp">, COP0_TLB_FM<0x08>;
+def TLBR : MMRel, TLB<"tlbr">, COP0_TLB_FM<0x01>;
+def TLBWI : MMRel, TLB<"tlbwi">, COP0_TLB_FM<0x02>;
+def TLBWR : MMRel, TLB<"tlbwr">, COP0_TLB_FM<0x06>;
 
 class CacheOp<string instr_asm, Operand MemOpnd, RegisterOperand GPROpnd> :
     InstSE<(outs), (ins  MemOpnd:$addr, uimm5:$hint),

diff --git a/test/MC/Mips/micromips-control-instructions.s b/test/MC/Mips/micromips-control-instructions.s
index aff84c245941bb5bae80adc3db255421b2b3fdb3..235e85f47dda2dd7b08f08ba26a62a741068e34b 100644 (file)
--- a/test/MC/Mips/micromips-control-instructions.s
+++ b/test/MC/Mips/micromips-control-instructions.s
@@ -24,6 +24,10 @@
 # CHECK-EL:    ei  $10                    # encoding: [0x0a,0x00,0x7c,0x57]
 # CHECK-EL:    wait                       # encoding: [0x00,0x00,0x7c,0x93]
 # CHECK-EL:    wait 17                    # encoding: [0x11,0x00,0x7c,0x93]
+# CHECK-EL:    tlbp                       # encoding: [0x00,0x00,0x7c,0x03]
+# CHECK-EL:    tlbr                       # encoding: [0x00,0x00,0x7c,0x13]
+# CHECK-EL:    tlbwi                      # encoding: [0x00,0x00,0x7c,0x23]
+# CHECK-EL:    tlbwr                      # encoding: [0x00,0x00,0x7c,0x33]
 #------------------------------------------------------------------------------
 # Big endian
 #------------------------------------------------------------------------------
@@ -42,6 +46,10 @@
 # CHECK-EB:   ei  $10                     # encoding: [0x00,0x0a,0x57,0x7c]
 # CHECK-EB:   wait                        # encoding: [0x00,0x00,0x93,0x7c]
 # CHECK-EB:   wait 17                     # encoding: [0x00,0x11,0x93,0x7c]
+# CHECK-EB:   tlbp                        # encoding: [0x00,0x00,0x03,0x7c]
+# CHECK-EB:   tlbr                        # encoding: [0x00,0x00,0x13,0x7c]
+# CHECK-EB:   tlbwi                       # encoding: [0x00,0x00,0x23,0x7c]
+# CHECK-EB:   tlbwr                       # encoding: [0x00,0x00,0x33,0x7c]
 
     break
     break 7
@@ -58,3 +66,7 @@
     ei $10
     wait
     wait 17
+    tlbp
+    tlbr
+    tlbwi
+    tlbwr