summaryrefslogtreecommitdiff
path: root/deps/v8/src/builtins/ppc/builtins-ppc.cc
diff options
context:
space:
mode:
Diffstat (limited to 'deps/v8/src/builtins/ppc/builtins-ppc.cc')
-rw-r--r--deps/v8/src/builtins/ppc/builtins-ppc.cc136
1 files changed, 77 insertions, 59 deletions
diff --git a/deps/v8/src/builtins/ppc/builtins-ppc.cc b/deps/v8/src/builtins/ppc/builtins-ppc.cc
index 34da70ff0f..7ae635b0c1 100644
--- a/deps/v8/src/builtins/ppc/builtins-ppc.cc
+++ b/deps/v8/src/builtins/ppc/builtins-ppc.cc
@@ -150,13 +150,6 @@ void Builtins::Generate_ArrayConstructor(MacroAssembler* masm) {
__ TailCallStub(&stub);
}
-static void GenerateTailCallToSharedCode(MacroAssembler* masm) {
- __ LoadP(ip, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
- __ LoadP(ip, FieldMemOperand(ip, SharedFunctionInfo::kCodeOffset));
- __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
- __ JumpToJSEntry(ip);
-}
-
static void GenerateTailCallToReturnedCode(MacroAssembler* masm,
Runtime::FunctionId function_id) {
// ----------- S t a t e -------------
@@ -179,8 +172,9 @@ static void GenerateTailCallToReturnedCode(MacroAssembler* masm,
__ Pop(r3, r4, r6);
__ SmiUntag(r3);
}
- __ addi(ip, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
- __ JumpToJSEntry(ip);
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ addi(r5, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ JumpToJSEntry(r5);
}
namespace {
@@ -293,7 +287,7 @@ void Generate_JSConstructStubGeneric(MacroAssembler* masm,
__ LoadP(r7, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
__ lwz(r7, FieldMemOperand(r7, SharedFunctionInfo::kCompilerHintsOffset));
- __ TestBitMask(r7, SharedFunctionInfo::kDerivedConstructorMask, r0);
+ __ TestBitMask(r7, SharedFunctionInfo::IsDerivedConstructorBit::kMask, r0);
__ bne(&not_create_implicit_receiver, cr0);
// If not derived class constructor: Allocate the new receiver object.
@@ -420,7 +414,7 @@ void Generate_JSConstructStubGeneric(MacroAssembler* masm,
__ LoadP(r7, MemOperand(fp, ConstructFrameConstants::kConstructorOffset));
__ LoadP(r7, FieldMemOperand(r7, JSFunction::kSharedFunctionInfoOffset));
__ lwz(r7, FieldMemOperand(r7, SharedFunctionInfo::kCompilerHintsOffset));
- __ TestBitMask(r7, SharedFunctionInfo::kClassConstructorMask, r0);
+ __ TestBitMask(r7, SharedFunctionInfo::IsClassConstructorBit::kMask, r0);
__ beq(&use_receiver, cr0);
} else {
@@ -563,9 +557,10 @@ void Builtins::Generate_ResumeGeneratorTrampoline(MacroAssembler* masm) {
// undefined because generator functions are non-constructable.
__ mr(r6, r4);
__ mr(r4, r7);
- __ LoadP(ip, FieldMemOperand(r4, JSFunction::kCodeOffset));
- __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
- __ JumpToJSEntry(ip);
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ LoadP(r5, FieldMemOperand(r4, JSFunction::kCodeOffset));
+ __ addi(r5, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ JumpToJSEntry(r5);
}
__ bind(&prepare_step_in_if_stepping);
@@ -827,10 +822,11 @@ static void MaybeTailCallOptimizedCodeSlot(MacroAssembler* masm,
// register.
ReplaceClosureCodeWithOptimizedCode(masm, optimized_code_entry, closure,
scratch2, scratch3, feedback_vector);
- __ addi(optimized_code_entry, optimized_code_entry,
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ addi(r5, optimized_code_entry,
Operand(Code::kHeaderSize - kHeapObjectTag));
- __ mr(ip, optimized_code_entry);
- __ Jump(optimized_code_entry);
+ __ mr(ip, r5);
+ __ Jump(r5);
// Optimized code slot contains deoptimized code, evict it and re-enter the
// closure's code.
@@ -844,10 +840,13 @@ static void MaybeTailCallOptimizedCodeSlot(MacroAssembler* masm,
}
// Advance the current bytecode offset. This simulates what all bytecode
-// handlers do upon completion of the underlying operation.
-static void AdvanceBytecodeOffset(MacroAssembler* masm, Register bytecode_array,
- Register bytecode_offset, Register bytecode,
- Register scratch1) {
+// handlers do upon completion of the underlying operation. Will bail out to a
+// label if the bytecode (without prefix) is a return bytecode.
+static void AdvanceBytecodeOffsetOrReturn(MacroAssembler* masm,
+ Register bytecode_array,
+ Register bytecode_offset,
+ Register bytecode, Register scratch1,
+ Label* if_return) {
Register bytecode_size_table = scratch1;
Register scratch2 = bytecode;
DCHECK(!AreAliased(bytecode_array, bytecode_offset, bytecode_size_table,
@@ -857,11 +856,11 @@ static void AdvanceBytecodeOffset(MacroAssembler* masm, Register bytecode_array,
Operand(ExternalReference::bytecode_size_table_address(masm->isolate())));
// Check if the bytecode is a Wide or ExtraWide prefix bytecode.
- Label load_size, extra_wide;
+ Label process_bytecode, extra_wide;
STATIC_ASSERT(0 == static_cast<int>(interpreter::Bytecode::kWide));
STATIC_ASSERT(1 == static_cast<int>(interpreter::Bytecode::kExtraWide));
__ cmpi(bytecode, Operand(0x1));
- __ bgt(&load_size);
+ __ bgt(&process_bytecode);
__ beq(&extra_wide);
// Load the next bytecode and update table to the wide scaled table.
@@ -869,7 +868,7 @@ static void AdvanceBytecodeOffset(MacroAssembler* masm, Register bytecode_array,
__ lbzx(bytecode, MemOperand(bytecode_array, bytecode_offset));
__ addi(bytecode_size_table, bytecode_size_table,
Operand(kIntSize * interpreter::Bytecodes::kBytecodeCount));
- __ b(&load_size);
+ __ b(&process_bytecode);
__ bind(&extra_wide);
// Load the next bytecode and update table to the extra wide scaled table.
@@ -879,7 +878,17 @@ static void AdvanceBytecodeOffset(MacroAssembler* masm, Register bytecode_array,
Operand(2 * kIntSize * interpreter::Bytecodes::kBytecodeCount));
// Load the size of the current bytecode.
- __ bind(&load_size);
+ __ bind(&process_bytecode);
+
+// Bailout to the return label if this is a return bytecode.
+#define JUMP_IF_EQUAL(NAME) \
+ __ cmpi(bytecode, \
+ Operand(static_cast<int>(interpreter::Bytecode::k##NAME))); \
+ __ beq(if_return);
+ RETURN_BYTECODE_LIST(JUMP_IF_EQUAL)
+#undef JUMP_IF_EQUAL
+
+ // Otherwise, load the size of the current bytecode and advance the offset.
__ ShiftLeftImm(scratch2, bytecode, Operand(2));
__ lwzx(scratch2, MemOperand(bytecode_size_table, scratch2));
__ add(bytecode_offset, bytecode_offset, scratch2);
@@ -908,7 +917,7 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
// Load the feedback vector from the closure.
__ LoadP(feedback_vector,
- FieldMemOperand(closure, JSFunction::kFeedbackVectorOffset));
+ FieldMemOperand(closure, JSFunction::kFeedbackCellOffset));
__ LoadP(feedback_vector,
FieldMemOperand(feedback_vector, Cell::kValueOffset));
// Read off the optimized code slot in the feedback vector, and if there
@@ -1021,11 +1030,12 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
__ mov(kInterpreterDispatchTableRegister,
Operand(ExternalReference::interpreter_dispatch_table_address(
masm->isolate())));
- __ lbzx(r4, MemOperand(kInterpreterBytecodeArrayRegister,
+ __ lbzx(r6, MemOperand(kInterpreterBytecodeArrayRegister,
kInterpreterBytecodeOffsetRegister));
- __ ShiftLeftImm(ip, r4, Operand(kPointerSizeLog2));
- __ LoadPX(ip, MemOperand(kInterpreterDispatchTableRegister, ip));
- __ Call(ip);
+ __ ShiftLeftImm(r6, r6, Operand(kPointerSizeLog2));
+ __ LoadPX(kJavaScriptCallCodeStartRegister,
+ MemOperand(kInterpreterDispatchTableRegister, r6));
+ __ Call(kJavaScriptCallCodeStartRegister);
masm->isolate()->heap()->SetInterpreterEntryReturnPCOffset(masm->pc_offset());
@@ -1039,16 +1049,13 @@ void Builtins::Generate_InterpreterEntryTrampoline(MacroAssembler* masm) {
MemOperand(fp, InterpreterFrameConstants::kBytecodeOffsetFromFp));
__ SmiUntag(kInterpreterBytecodeOffsetRegister);
- // Check if we should return.
+ // Either return, or advance to the next bytecode and dispatch.
Label do_return;
__ lbzx(r4, MemOperand(kInterpreterBytecodeArrayRegister,
kInterpreterBytecodeOffsetRegister));
- __ cmpi(r4, Operand(static_cast<int>(interpreter::Bytecode::kReturn)));
- __ beq(&do_return);
-
- // Advance to the next bytecode and dispatch.
- AdvanceBytecodeOffset(masm, kInterpreterBytecodeArrayRegister,
- kInterpreterBytecodeOffsetRegister, r4, r5);
+ AdvanceBytecodeOffsetOrReturn(masm, kInterpreterBytecodeArrayRegister,
+ kInterpreterBytecodeOffsetRegister, r4, r5,
+ &do_return);
__ b(&do_dispatch);
__ bind(&do_return);
@@ -1251,11 +1258,12 @@ static void Generate_InterpreterEnterBytecode(MacroAssembler* masm) {
__ SmiUntag(kInterpreterBytecodeOffsetRegister);
// Dispatch to the target bytecode.
- __ lbzx(r4, MemOperand(kInterpreterBytecodeArrayRegister,
+ __ lbzx(ip, MemOperand(kInterpreterBytecodeArrayRegister,
kInterpreterBytecodeOffsetRegister));
- __ ShiftLeftImm(ip, r4, Operand(kPointerSizeLog2));
- __ LoadPX(ip, MemOperand(kInterpreterDispatchTableRegister, ip));
- __ Jump(ip);
+ __ ShiftLeftImm(ip, ip, Operand(kPointerSizeLog2));
+ __ LoadPX(kJavaScriptCallCodeStartRegister,
+ MemOperand(kInterpreterDispatchTableRegister, ip));
+ __ Jump(kJavaScriptCallCodeStartRegister);
}
void Builtins::Generate_InterpreterEnterBytecodeAdvance(MacroAssembler* masm) {
@@ -1271,8 +1279,10 @@ void Builtins::Generate_InterpreterEnterBytecodeAdvance(MacroAssembler* masm) {
kInterpreterBytecodeOffsetRegister));
// Advance to the next bytecode.
- AdvanceBytecodeOffset(masm, kInterpreterBytecodeArrayRegister,
- kInterpreterBytecodeOffsetRegister, r4, r5);
+ Label if_return;
+ AdvanceBytecodeOffsetOrReturn(masm, kInterpreterBytecodeArrayRegister,
+ kInterpreterBytecodeOffsetRegister, r4, r5,
+ &if_return);
// Convert new bytecode offset to a Smi and save in the stackframe.
__ SmiTag(r5, kInterpreterBytecodeOffsetRegister);
@@ -1280,6 +1290,10 @@ void Builtins::Generate_InterpreterEnterBytecodeAdvance(MacroAssembler* masm) {
MemOperand(fp, InterpreterFrameConstants::kBytecodeOffsetFromFp));
Generate_InterpreterEnterBytecode(masm);
+
+ // We should never take the if_return path.
+ __ bind(&if_return);
+ __ Abort(AbortReason::kInvalidBytecodeAdvance);
}
void Builtins::Generate_InterpreterEnterBytecodeDispatch(MacroAssembler* masm) {
@@ -1297,7 +1311,7 @@ void Builtins::Generate_CheckOptimizationMarker(MacroAssembler* masm) {
// Get the feedback vector.
Register feedback_vector = r5;
__ LoadP(feedback_vector,
- FieldMemOperand(closure, JSFunction::kFeedbackVectorOffset));
+ FieldMemOperand(closure, JSFunction::kFeedbackCellOffset));
__ LoadP(feedback_vector,
FieldMemOperand(feedback_vector, Cell::kValueOffset));
@@ -1311,7 +1325,11 @@ void Builtins::Generate_CheckOptimizationMarker(MacroAssembler* masm) {
MaybeTailCallOptimizedCodeSlot(masm, feedback_vector, r7, r9, r8);
// Otherwise, tail call the SFI code.
- GenerateTailCallToSharedCode(masm);
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ LoadP(r5, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
+ __ LoadP(r5, FieldMemOperand(r5, SharedFunctionInfo::kCodeOffset));
+ __ addi(r5, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ JumpToJSEntry(r5);
}
void Builtins::Generate_CompileLazyDeoptimizedCode(MacroAssembler* masm) {
@@ -1340,7 +1358,7 @@ void Builtins::Generate_CompileLazy(MacroAssembler* masm) {
// Do we have a valid feedback vector?
__ LoadP(feedback_vector,
- FieldMemOperand(closure, JSFunction::kFeedbackVectorOffset));
+ FieldMemOperand(closure, JSFunction::kFeedbackCellOffset));
__ LoadP(feedback_vector,
FieldMemOperand(feedback_vector, Cell::kValueOffset));
__ JumpIfRoot(feedback_vector, Heap::kUndefinedValueRootIndex,
@@ -1524,9 +1542,10 @@ void Builtins::Generate_InstantiateAsmJs(MacroAssembler* masm) {
}
// On failure, tail call back to regular js by re-calling the function
// which has be reset to the compile lazy builtin.
- __ LoadP(ip, FieldMemOperand(r4, JSFunction::kCodeOffset));
- __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
- __ JumpToJSEntry(ip);
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ LoadP(r5, FieldMemOperand(r4, JSFunction::kCodeOffset));
+ __ addi(r5, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ JumpToJSEntry(r5);
}
namespace {
@@ -2051,7 +2070,7 @@ void Builtins::Generate_CallFunction(MacroAssembler* masm,
Label class_constructor;
__ LoadP(r5, FieldMemOperand(r4, JSFunction::kSharedFunctionInfoOffset));
__ lwz(r6, FieldMemOperand(r5, SharedFunctionInfo::kCompilerHintsOffset));
- __ TestBitMask(r6, SharedFunctionInfo::kClassConstructorMask, r0);
+ __ TestBitMask(r6, SharedFunctionInfo::IsClassConstructorBit::kMask, r0);
__ bne(&class_constructor, cr0);
// Enter the context of the function; ToObject has to run in the function
@@ -2443,8 +2462,6 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
Label invoke, dont_adapt_arguments, stack_overflow;
Label enough, too_few;
- __ LoadP(ip, FieldMemOperand(r4, JSFunction::kCodeOffset));
- __ addi(ip, ip, Operand(Code::kHeaderSize - kHeapObjectTag));
__ cmp(r3, r5);
__ blt(&too_few);
__ cmpi(r5, Operand(SharedFunctionInfo::kDontAdaptArgumentsSentinel));
@@ -2460,7 +2477,6 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// r4: function
// r5: expected number of arguments
// r6: new target (passed through to callee)
- // ip: code entry to call
__ SmiToPtrArrayOffset(r3, r3);
__ add(r3, r3, fp);
// adjust for return address and receiver
@@ -2474,7 +2490,6 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// r5: expected number of arguments
// r6: new target (passed through to callee)
// r7: copy end address
- // ip: code entry to call
Label copy;
__ bind(&copy);
@@ -2498,7 +2513,6 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// r4: function
// r5: expected number of arguments
// r6: new target (passed through to callee)
- // ip: code entry to call
__ SmiToPtrArrayOffset(r3, r3);
__ add(r3, r3, fp);
@@ -2507,7 +2521,6 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// r4: function
// r5: expected number of arguments
// r6: new target (passed through to callee)
- // ip: code entry to call
Label copy;
__ bind(&copy);
// Adjust load for return address and receiver.
@@ -2521,7 +2534,6 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// r4: function
// r5: expected number of arguments
// r6: new target (passed through to callee)
- // ip: code entry to call
__ LoadRoot(r0, Heap::kUndefinedValueRootIndex);
__ ShiftLeftImm(r7, r5, Operand(kPointerSizeLog2));
__ sub(r7, fp, r7);
@@ -2543,7 +2555,10 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// r3 : expected number of arguments
// r4 : function (passed through to callee)
// r6 : new target (passed through to callee)
- __ CallJSEntry(ip);
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ LoadP(r5, FieldMemOperand(r4, JSFunction::kCodeOffset));
+ __ addi(r5, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ CallJSEntry(r5);
// Store offset of return address for deoptimizer.
masm->isolate()->heap()->SetArgumentsAdaptorDeoptPCOffset(masm->pc_offset());
@@ -2556,7 +2571,10 @@ void Builtins::Generate_ArgumentsAdaptorTrampoline(MacroAssembler* masm) {
// Dont adapt arguments.
// -------------------------------------------
__ bind(&dont_adapt_arguments);
- __ JumpToJSEntry(ip);
+ static_assert(kJavaScriptCallCodeStartRegister == r5, "ABI mismatch");
+ __ LoadP(r5, FieldMemOperand(r4, JSFunction::kCodeOffset));
+ __ addi(r5, r5, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ JumpToJSEntry(r5);
__ bind(&stack_overflow);
{
View Lorry Controller Status