[turbofan] Add new Float32Abs and Float64Abs operators.

src/compiler/ia32/code-generator-ia32.cc

 // Copyright 2013 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/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/ia32/assembler-ia32.h"
@@ skipping 459 matching lines @@
       break;
     case kSSEFloat32Max:
       __ maxss(i.InputDoubleRegister(0), i.InputOperand(1));
       break;
     case kSSEFloat32Min:
       __ minss(i.InputDoubleRegister(0), i.InputOperand(1));
       break;
     case kSSEFloat32Sqrt:
       __ sqrtss(i.OutputDoubleRegister(), i.InputOperand(0));
       break;
+    case kSSEFloat32Abs: {
+      // TODO(bmeurer): Use 128-bit constants.
+      // TODO(turbofan): Add AVX version with relaxed register constraints.
+      __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg);
+      __ psrlq(kScratchDoubleReg, 33);
+      __ andps(i.OutputDoubleRegister(), kScratchDoubleReg);
+      break;
+    }
     case kSSEFloat32Neg: {
       // TODO(bmeurer): Use 128-bit constants.
       // TODO(turbofan): Add AVX version with relaxed register constraints.
       __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg);
       __ psllq(kScratchDoubleReg, 31);
       __ xorps(i.OutputDoubleRegister(), kScratchDoubleReg);
       break;
     }
     case kSSEFloat64Cmp:
       __ ucomisd(i.InputDoubleRegister(0), i.InputOperand(1));
@@ skipping 34 matching lines @@
       __ fnstsw_ax();
       __ sahf();
       __ j(parity_even, &mod_loop);
       // Move output to stack and clean up.
       __ fstp(1);
       __ fstp_d(Operand(esp, 0));
       __ movsd(i.OutputDoubleRegister(), Operand(esp, 0));
       __ add(esp, Immediate(kDoubleSize));
       break;
     }
+    case kSSEFloat64Abs: {
+      // TODO(bmeurer): Use 128-bit constants.
+      // TODO(turbofan): Add AVX version with relaxed register constraints.
+      __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg);
+      __ psrlq(kScratchDoubleReg, 1);
+      __ andpd(i.OutputDoubleRegister(), kScratchDoubleReg);
+      break;
+    }
     case kSSEFloat64Neg: {
       // TODO(bmeurer): Use 128-bit constants.
       // TODO(turbofan): Add AVX version with relaxed register constraints.
       __ pcmpeqd(kScratchDoubleReg, kScratchDoubleReg);
       __ psllq(kScratchDoubleReg, 63);
       __ xorpd(i.OutputDoubleRegister(), kScratchDoubleReg);
       break;
     }
     case kSSEFloat64Sqrt:
       __ sqrtsd(i.OutputDoubleRegister(), i.InputOperand(0));
@@ skipping 863 matching lines @@
     }
   }
   MarkLazyDeoptSite();
 }
 
 #undef __
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8