Revert of Collect type feedback on result of Math.[round|ceil|floor]

src/mips64/code-stubs-mips64.cc

Index: src/mips64/code-stubs-mips64.cc
diff --git a/src/mips64/code-stubs-mips64.cc b/src/mips64/code-stubs-mips64.cc
index 90ed942054a2ade2e5b7ca476c2b4016d4ecef2b..9cfef7d8d627b5b47c359ebddf5e29df9de01a6f 100644
--- a/src/mips64/code-stubs-mips64.cc
+++ b/src/mips64/code-stubs-mips64.cc
@@ -2930,155 +2930,6 @@
 }
 
 
-void CallIC_RoundStub::Generate(MacroAssembler* masm) {
-  Register function = a1;
-  Register vector = a2;
-  Register slot = a3;
-
-  Register temp1 = a0;
-  Register temp2 = a4;
-  DoubleRegister double_temp1 = f12;
-  DoubleRegister double_temp2 = f14;
-  Label tail, miss;
-
-  // Ensure nobody has snuck in another function.
-  __ BranchIfNotBuiltin(function, temp1, kMathRound, &miss);
-
-  if (arg_count() > 0) {
-    __ ld(temp1, MemOperand(sp, (arg_count() - 1) * kPointerSize));
-    Handle<Map> map = isolate()->factory()->heap_number_map();
-    __ CheckMap(temp1, temp2, map, &tail, DO_SMI_CHECK);
-    __ ldc1(double_temp1, FieldMemOperand(temp1, HeapNumber::kValueOffset));
-
-    // If the number is >0, it doesn't round to -0
-    __ Move(double_temp2, 0.0);
-    __ BranchF64(&tail, nullptr, gt, double_temp1, double_temp2);
-
-    // If the number is <-.5, it doesn't round to -0
-    __ Move(double_temp2, -.5);
-    __ BranchF64(&tail, nullptr, lt, double_temp1, double_temp2);
-
-    // +0 doesn't round to -0
-    __ FmoveHigh(temp1, double_temp1);
-    __ Branch(&tail, ne, temp1, Operand(0xffffffff80000000));
-
-    __ SmiScale(temp1, slot, kPointerSizeLog2);
-    __ Daddu(temp1, temp1, vector);
-    __ li(temp2, Operand(Smi::FromInt(kHasReturnedMinusZeroSentinel)));
-    __ sd(temp2,
-          FieldMemOperand(temp1, FixedArray::kHeaderSize + kPointerSize));
-  }
-
-  __ bind(&tail);
-  // The slow case, we need this no matter what to complete a call after a miss.
-  CallFunctionNoFeedback(masm, arg_count(), true, CallAsMethod());
-
-  // Unreachable.
-  __ stop("Unreachable");
-
-  __ bind(&miss);
-  GenerateMiss(masm);
-  __ Branch(&tail);
-}
-
-
-void CallIC_FloorStub::Generate(MacroAssembler* masm) {
-  Register function = a1;
-  Register vector = a2;
-  Register slot = a3;
-
-  Register temp1 = a0;
-  Register temp2 = a4;
-  DoubleRegister double_temp = f12;
-  Label tail, miss;
-
-  // Ensure nobody has snuck in another function.
-  __ BranchIfNotBuiltin(function, temp1, kMathFloor, &miss);
-
-  if (arg_count() > 0) {
-    __ ld(temp1, MemOperand(sp, (arg_count() - 1) * kPointerSize));
-    Handle<Map> map = isolate()->factory()->heap_number_map();
-    __ CheckMap(temp1, temp2, map, &tail, DO_SMI_CHECK);
-    __ ldc1(double_temp, FieldMemOperand(temp1, HeapNumber::kValueOffset));
-
-    // Only -0 floors to -0.
-    __ FmoveHigh(temp1, double_temp);
-    __ Branch(&tail, ne, temp1, Operand(0xffffffff80000000));
-    __ FmoveLow(temp1, double_temp);
-    __ Branch(&tail, ne, temp1, Operand(zero_reg));
-
-    __ SmiScale(temp1, slot, kPointerSizeLog2);
-    __ Daddu(temp1, temp1, vector);
-    __ li(temp2, Operand(Smi::FromInt(kHasReturnedMinusZeroSentinel)));
-    __ sd(temp2,
-          FieldMemOperand(temp1, FixedArray::kHeaderSize + kPointerSize));
-  }
-
-  __ bind(&tail);
-  // The slow case, we need this no matter what to complete a call after a miss.
-  CallFunctionNoFeedback(masm, arg_count(), true, CallAsMethod());
-
-  // Unreachable.
-  __ stop("Unreachable");
-
-  __ bind(&miss);
-  GenerateMiss(masm);
-  __ Branch(&tail);
-}
-
-
-void CallIC_CeilStub::Generate(MacroAssembler* masm) {
-  Register function = a1;
-  Register vector = a2;
-  Register slot = a3;
-
-  Register temp1 = a0;
-  Register temp2 = a4;
-  DoubleRegister double_temp1 = f12;
-  DoubleRegister double_temp2 = f14;
-  Label tail, miss;
-
-  // Ensure nobody has snuck in another function.
-  __ BranchIfNotBuiltin(function, temp1, kMathCeil, &miss);
-
-  if (arg_count() > 0) {
-    __ ld(temp1, MemOperand(sp, (arg_count() - 1) * kPointerSize));
-    Handle<Map> map = isolate()->factory()->heap_number_map();
-    __ CheckMap(temp1, temp2, map, &tail, DO_SMI_CHECK);
-    __ ldc1(double_temp1, FieldMemOperand(temp1, HeapNumber::kValueOffset));
-
-    // If the number is >0, it doesn't round to -0
-    __ Move(double_temp2, 0.0);
-    __ BranchF64(&tail, nullptr, gt, double_temp1, double_temp2);
-
-    // If the number is <=-1, it doesn't round to -0
-    __ Move(double_temp2, -1.0);
-    __ BranchF64(&tail, nullptr, le, double_temp1, double_temp2);
-
-    // +0 doesn't round to -0.
-    __ FmoveHigh(temp1, double_temp1);
-    __ Branch(&tail, ne, temp1, Operand(0xffffffff80000000));
-
-    __ SmiScale(temp1, slot, kPointerSizeLog2);
-    __ Daddu(temp1, temp1, vector);
-    __ li(temp2, Operand(Smi::FromInt(kHasReturnedMinusZeroSentinel)));
-    __ sd(temp2,
-          FieldMemOperand(temp1, FixedArray::kHeaderSize + kPointerSize));
-  }
-
-  __ bind(&tail);
-  // The slow case, we need this no matter what to complete a call after a miss.
-  CallFunctionNoFeedback(masm, arg_count(), true, CallAsMethod());
-
-  // Unreachable.
-  __ stop("Unreachable");
-
-  __ bind(&miss);
-  GenerateMiss(masm);
-  __ Branch(&tail);
-}
-
-
 void CallICStub::Generate(MacroAssembler* masm) {
   // a1 - function
   // a3 - slot id (Smi)
@@ -3188,11 +3039,6 @@
   // behavior on MISS.
   __ LoadGlobalFunction(Context::ARRAY_FUNCTION_INDEX, a4);
   __ Branch(&miss, eq, a1, Operand(a4));
-
-  // Some builtin functions require special handling, miss to the runtime.
-  __ ld(t0, FieldMemOperand(a1, JSFunction::kSharedFunctionInfoOffset));
-  __ ld(t0, FieldMemOperand(t0, SharedFunctionInfo::kFunctionDataOffset));
-  __ Branch(&miss, ne, t0, Operand(Smi::FromInt(0)));
 
   // Update stats.
   __ ld(a4, FieldMemOperand(a2, with_types_offset));
@@ -4784,27 +4630,6 @@
 void CallIC_ArrayTrampolineStub::Generate(MacroAssembler* masm) {
   EmitLoadTypeFeedbackVector(masm, a2);
   CallIC_ArrayStub stub(isolate(), state());
-  __ Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
-}
-
-
-void CallIC_RoundTrampolineStub::Generate(MacroAssembler* masm) {
-  EmitLoadTypeFeedbackVector(masm, a2);
-  CallIC_RoundStub stub(isolate(), state());
-  __ Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
-}
-
-
-void CallIC_FloorTrampolineStub::Generate(MacroAssembler* masm) {
-  EmitLoadTypeFeedbackVector(masm, a2);
-  CallIC_FloorStub stub(isolate(), state());
-  __ Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
-}
-
-
-void CallIC_CeilTrampolineStub::Generate(MacroAssembler* masm) {
-  EmitLoadTypeFeedbackVector(masm, a2);
-  CallIC_CeilStub stub(isolate(), state());
   __ Jump(stub.GetCode(), RelocInfo::CODE_TARGET);
 }