MIPS: [wasm] Lowering of Int64Shl, Int64Shr, Int64Sar, Int64Add and Int64Sub.

src/compiler/mips/code-generator-mips.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ast/scopes.h"
 #include "src/compiler/code-generator.h"
 #include "src/compiler/code-generator-impl.h"
 #include "src/compiler/gap-resolver.h"
 #include "src/compiler/node-matchers.h"
 #include "src/compiler/osr.h"
@@ skipping 821 matching lines @@
       }
       break;
     case kMipsSar:
       if (instr->InputAt(1)->IsRegister()) {
         __ srav(i.OutputRegister(), i.InputRegister(0), i.InputRegister(1));
       } else {
         int32_t imm = i.InputOperand(1).immediate();
         __ sra(i.OutputRegister(), i.InputRegister(0), imm);
       }
       break;
+    case kMipsShlPair: {
+      if (instr->InputAt(2)->IsRegister()) {
+        __ ShlPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                   i.InputRegister(1), i.InputRegister(2));
+      } else {
+        uint32_t imm = i.InputOperand(2).immediate();
+        __ ShlPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                   i.InputRegister(1), imm);
+      }
+    } break;
+    case kMipsShrPair: {
+      if (instr->InputAt(2)->IsRegister()) {
+        __ ShrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                   i.InputRegister(1), i.InputRegister(2));
+      } else {
+        uint32_t imm = i.InputOperand(2).immediate();
+        __ ShrPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                   i.InputRegister(1), imm);
+      }
+    } break;
+    case kMipsSarPair: {
+      if (instr->InputAt(2)->IsRegister()) {
+        __ SarPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                   i.InputRegister(1), i.InputRegister(2));
+      } else {
+        uint32_t imm = i.InputOperand(2).immediate();
+        __ SarPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                   i.InputRegister(1), imm);
+      }
+    } break;
     case kMipsExt:
       __ Ext(i.OutputRegister(), i.InputRegister(0), i.InputInt8(1),
              i.InputInt8(2));
       break;
     case kMipsIns:
       if (instr->InputAt(1)->IsImmediate() && i.InputInt8(1) == 0) {
         __ Ins(i.OutputRegister(), zero_reg, i.InputInt8(1), i.InputInt8(2));
       } else {
         __ Ins(i.OutputRegister(), i.InputRegister(0), i.InputInt8(1),
                i.InputInt8(2));
@@ skipping 64 matching lines @@
       __ max_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
                i.InputDoubleRegister(1));
       break;
     case kMipsMinS:
       __ min_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
                i.InputDoubleRegister(1));
       break;
     case kMipsCmpD:
       // Psuedo-instruction used for FP cmp/branch. No opcode emitted here.
       break;
+    case kMipsAddPair:
+      __ AddPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                 i.InputRegister(1), i.InputRegister(2), i.InputRegister(3));
+      break;
+    case kMipsSubPair:
+      __ SubPair(i.OutputRegister(0), i.OutputRegister(1), i.InputRegister(0),
+                 i.InputRegister(1), i.InputRegister(2), i.InputRegister(3));
+      break;
     case kMipsMulPair: {
       __ Mulu(i.OutputRegister(1), i.OutputRegister(0), i.InputRegister(0),
               i.InputRegister(2));
       __ mul(kScratchReg, i.InputRegister(0), i.InputRegister(3));
       __ mul(kScratchReg2, i.InputRegister(1), i.InputRegister(2));
       __ Addu(i.OutputRegister(1), i.OutputRegister(1), kScratchReg);
       __ Addu(i.OutputRegister(1), i.OutputRegister(1), kScratchReg2);
     } break;
     case kMipsAddD:
       // TODO(plind): add special case: combine mult & add.
@@ skipping 941 matching lines @@
       padding_size -= v8::internal::Assembler::kInstrSize;
     }
   }
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8