MIPS: Port for (fused) multiply add/subtract.

src/compiler/mips64/code-generator-mips64.cc

Index: src/compiler/mips64/code-generator-mips64.cc
diff --git a/src/compiler/mips64/code-generator-mips64.cc b/src/compiler/mips64/code-generator-mips64.cc
index 7a964801bbe03eff3d0dffa53b815784754beb16..31f6f456ad5f67e816d1aaf210cc61400cd203b1 100644
--- a/src/compiler/mips64/code-generator-mips64.cc
+++ b/src/compiler/mips64/code-generator-mips64.cc
@@ -1314,6 +1314,38 @@ CodeGenerator::CodeGenResult CodeGenerator::AssembleArchInstruction(
       __ sub_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
                i.InputDoubleRegister(1));
       break;
+    case kMips64MaddS:
+      __ madd_s(i.OutputFloatRegister(), i.InputFloatRegister(0),
+                i.InputFloatRegister(1), i.InputFloatRegister(2));
+      break;
+    case kMips64MaddD:
+      __ madd_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
+                i.InputDoubleRegister(1), i.InputDoubleRegister(2));
+      break;
+    case kMips64MaddfS:
+      __ maddf_s(i.OutputFloatRegister(), i.InputFloatRegister(1),
+                 i.InputFloatRegister(2));
+      break;
+    case kMips64MaddfD:
+      __ maddf_d(i.OutputDoubleRegister(), i.InputDoubleRegister(1),
+                 i.InputDoubleRegister(2));
+      break;
+    case kMips64MsubS:
+      __ msub_s(i.OutputFloatRegister(), i.InputFloatRegister(0),
+                i.InputFloatRegister(1), i.InputFloatRegister(2));
+      break;
+    case kMips64MsubD:
+      __ msub_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),
+                i.InputDoubleRegister(1), i.InputDoubleRegister(2));
+      break;
+    case kMips64MsubfS:
+      __ msubf_s(i.OutputFloatRegister(), i.InputFloatRegister(1),
+                 i.InputFloatRegister(2));
+      break;
+    case kMips64MsubfD:
+      __ msubf_d(i.OutputDoubleRegister(), i.InputDoubleRegister(1),
+                 i.InputDoubleRegister(2));
+      break;
     case kMips64MulD:
       // TODO(plind): add special case: right op is -1.0, see arm port.
       __ mul_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0),