[turbofan] Add new Float32Abs and Float64Abs operators.

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

Index: src/compiler/ia32/code-generator-ia32.cc
diff --git a/src/compiler/ia32/code-generator-ia32.cc b/src/compiler/ia32/code-generator-ia32.cc
index 19a76e075f5d077cbc2a0cde0cb129006b82fc61..447a8e3b1c75d7302a76c97ccf30543b44efbc57 100644
--- a/src/compiler/ia32/code-generator-ia32.cc
+++ b/src/compiler/ia32/code-generator-ia32.cc
@@ -477,6 +477,14 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
     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.
@@ -531,6 +539,14 @@ void CodeGenerator::AssembleArchInstruction(Instruction* instr) {
       __ 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.