Version 3.0.2.

src/ia32/lithium-codegen-ia32.cc

Index: src/ia32/lithium-codegen-ia32.cc
diff --git a/src/ia32/lithium-codegen-ia32.cc b/src/ia32/lithium-codegen-ia32.cc
index b5c0289174e7c94abf332dbc8a43726f9e8c47ce..dc0f5e90f98610650706336e7165eb7ba42b447f 100644
--- a/src/ia32/lithium-codegen-ia32.cc
+++ b/src/ia32/lithium-codegen-ia32.cc
@@ -2174,67 +2174,6 @@ void LCodeGen::DoMathSqrt(LUnaryMathOperation* instr) {
 }
 
 
-void LCodeGen::DoMathPowHalf(LUnaryMathOperation* instr) {
-  XMMRegister xmm_scratch = xmm0;
-  XMMRegister input_reg = ToDoubleRegister(instr->input());
-  ASSERT(ToDoubleRegister(instr->result()).is(input_reg));
-  ExternalReference negative_infinity =
-      ExternalReference::address_of_negative_infinity();
-  __ movdbl(xmm_scratch, Operand::StaticVariable(negative_infinity));
-  __ ucomisd(xmm_scratch, input_reg);
-  DeoptimizeIf(equal, instr->environment());
-  __ sqrtsd(input_reg, input_reg);
-}
-
-
-void LCodeGen::DoPower(LPower* instr) {
-  LOperand* left = instr->left();
-  LOperand* right = instr->right();
-  Representation exponent_type = instr->hydrogen()->right()->representation();
-  if (exponent_type.IsDouble()) {
-    // Pass two doubles as arguments on the stack.
-    __ PrepareCallCFunction(4, eax);
-    __ movdbl(Operand(esp, 0 * kDoubleSize), ToDoubleRegister(left));
-    __ movdbl(Operand(esp, 1 * kDoubleSize), ToDoubleRegister(right));
-    __ CallCFunction(ExternalReference::power_double_double_function(), 4);
-  } else if (exponent_type.IsInteger32()) {
-    __ PrepareCallCFunction(4, ebx);
-    __ movdbl(Operand(esp, 0 * kDoubleSize), ToDoubleRegister(left));
-    __ mov(Operand(esp, 1 * kDoubleSize), ToRegister(right));
-    __ CallCFunction(ExternalReference::power_double_int_function(), 4);
-  } else {
-    ASSERT(exponent_type.IsTagged());
-    __ PrepareCallCFunction(4, ebx);
-    __ movdbl(Operand(esp, 0 * kDoubleSize), ToDoubleRegister(left));
-    Register right_reg = ToRegister(right);
-    Label non_smi;
-    Label done;
-    __ test(right_reg, Immediate(kSmiTagMask));
-    __ j(not_zero, &non_smi);
-    __ SmiUntag(right_reg);
-    __ mov(Operand(esp, 1 * kDoubleSize), ToRegister(right));
-    __ CallCFunction(ExternalReference::power_double_int_function(), 4);
-    __ jmp(&done);
-
-    __ bind(&non_smi);
-    __ CmpObjectType(right_reg, HEAP_NUMBER_TYPE , ebx);
-    DeoptimizeIf(not_equal, instr->environment());
-    __ movdbl(xmm1, FieldOperand(right_reg, HeapNumber::kValueOffset));
-    __ movdbl(Operand(esp, 1 * kDoubleSize), xmm1);
-    __ CallCFunction(ExternalReference::power_double_double_function(), 4);
-
-    __ bind(&done);
-  }
-
-  // Return value is in st(0) on ia32.
-  // Store it into the (fixed) result register.
-  __ sub(Operand(esp), Immediate(kDoubleSize));
-  __ fstp_d(Operand(esp, 0));
-  __ movdbl(ToDoubleRegister(instr->result()), Operand(esp, 0));
-  __ add(Operand(esp), Immediate(kDoubleSize));
-}
-
-
 void LCodeGen::DoUnaryMathOperation(LUnaryMathOperation* instr) {
   switch (instr->op()) {
     case kMathAbs:
@@ -2249,9 +2188,6 @@ void LCodeGen::DoUnaryMathOperation(LUnaryMathOperation* instr) {
     case kMathSqrt:
       DoMathSqrt(instr);
       break;
-    case kMathPowHalf:
-      DoMathPowHalf(instr);
-      break;
     default:
       UNREACHABLE();
   }