MIPS: [turbofan] Add new Float32Abs and Float64Abs operators.

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 9297a533f3682891b1befe1de8dee8c589e2afd6..8091ff96928c54c19a999556a8d6cd2f9f228ac4 100644
--- a/src/compiler/mips64/code-generator-mips64.cc
+++ b/src/compiler/mips64/code-generator-mips64.cc
@@ -639,6 +639,9 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       __ MovFromFloatResult(i.OutputSingleRegister());
       break;
     }
+    case kMips64AbsS:
+      __ abs_s(i.OutputSingleRegister(), i.InputSingleRegister(0));
+      break;
     case kMips64SqrtS: {
       __ sqrt_s(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       break;
@@ -677,6 +680,9 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       __ MovFromFloatResult(i.OutputDoubleRegister());
       break;
     }
+    case kMips64AbsD:
+      __ abs_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
+      break;
     case kMips64SqrtD: {
       __ sqrt_d(i.OutputDoubleRegister(), i.InputDoubleRegister(0));
       break;