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

src/mips/assembler-mips.cc

Index: src/mips/assembler-mips.cc
diff --git a/src/mips/assembler-mips.cc b/src/mips/assembler-mips.cc
index 769abdb9465e10b6753531381d91b8d6e9eeb22b..c96c05b2b14cb222f0b12633804a6c9eba76877d 100644
--- a/src/mips/assembler-mips.cc
+++ b/src/mips/assembler-mips.cc
@@ -2119,6 +2119,11 @@ void Assembler::div_d(FPURegister fd, FPURegister fs, FPURegister ft) {
 }
 
 
+void Assembler::abs_s(FPURegister fd, FPURegister fs) {
+  GenInstrRegister(COP1, S, f0, fs, fd, ABS_D);
+}
+
+
 void Assembler::abs_d(FPURegister fd, FPURegister fs) {
   GenInstrRegister(COP1, D, f0, fs, fd, ABS_D);
 }