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

src/mips64/assembler-mips64.cc

Index: src/mips64/assembler-mips64.cc
diff --git a/src/mips64/assembler-mips64.cc b/src/mips64/assembler-mips64.cc
index 3b418514577aa7623e83a908226286c3493de383..0a8c1fb4726b036eb06433dcb06dcaf61e693134 100644
--- a/src/mips64/assembler-mips64.cc
+++ b/src/mips64/assembler-mips64.cc
@@ -2321,6 +2321,11 @@ 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);
 }