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Unified Diff: src/mips64/builtins-mips64.cc

Issue 1902373002: [builtins] Introduce a proper BUILTIN frame type. (Closed) Base URL: https://chromium.googlesource.com/v8/v8.git@master
Patch Set: Created 4 years, 8 months ago
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Index: src/mips64/builtins-mips64.cc
diff --git a/src/mips64/builtins-mips64.cc b/src/mips64/builtins-mips64.cc
index 932881c484225376a71f94f401147a413b73dc7e..b841968ccce49ceb44e8dda1903072da41f987b3 100644
--- a/src/mips64/builtins-mips64.cc
+++ b/src/mips64/builtins-mips64.cc
@@ -144,6 +144,8 @@ void Builtins::Generate_ArrayCode(MacroAssembler* masm) {
void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) {
// ----------- S t a t e -------------
// -- a0 : number of arguments
+ // -- a1 : function
+ // -- cp : context
// -- ra : return address
// -- sp[(argc - n) * 8] : arg[n] (zero-based)
// -- sp[(argc + 1) * 8] : receiver
@@ -153,20 +155,20 @@ void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) {
: Heap::kMinusInfinityValueRootIndex;
// Load the accumulator with the default return value (either -Infinity or
- // +Infinity), with the tagged value in a1 and the double value in f0.
- __ LoadRoot(a1, root_index);
- __ ldc1(f0, FieldMemOperand(a1, HeapNumber::kValueOffset));
+ // +Infinity), with the tagged value in t1 and the double value in f0.
+ __ LoadRoot(t1, root_index);
+ __ ldc1(f0, FieldMemOperand(t1, HeapNumber::kValueOffset));
__ Addu(a3, a0, 1);
Label done_loop, loop;
__ bind(&loop);
{
// Check if all parameters done.
- __ Dsubu(a0, a0, Operand(1));
- __ Branch(&done_loop, lt, a0, Operand(zero_reg));
+ __ Dsubu(a3, a3, Operand(1));
+ __ Branch(&done_loop, lt, a3, Operand(zero_reg));
// Load the next parameter tagged value into a2.
- __ Dlsa(at, sp, a0, kPointerSizeLog2);
+ __ Dlsa(at, sp, a3, kPointerSizeLog2);
__ ld(a2, MemOperand(at));
// Load the double value of the parameter into f2, maybe converting the
@@ -178,27 +180,32 @@ void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) {
__ JumpIfRoot(a4, Heap::kHeapNumberMapRootIndex, &convert_number);
{
// Parameter is not a Number, use the ToNumberStub to convert it.
- FrameScope scope(masm, StackFrame::INTERNAL);
+ FrameScope scope(masm, StackFrame::MANUAL);
+ __ Push(ra, fp);
+ __ Move(fp, sp);
+ __ Push(cp, a1);
__ SmiTag(a0);
__ SmiTag(a3);
- __ Push(a0, a1, a3);
+ __ Push(a0, t1, a3);
__ mov(a0, a2);
ToNumberStub stub(masm->isolate());
__ CallStub(&stub);
__ mov(a2, v0);
- __ Pop(a0, a1, a3);
+ __ Pop(a0, t1, a3);
{
// Restore the double accumulator value (f0).
Label restore_smi, done_restore;
- __ JumpIfSmi(a1, &restore_smi);
- __ ldc1(f0, FieldMemOperand(a1, HeapNumber::kValueOffset));
+ __ JumpIfSmi(t1, &restore_smi);
+ __ ldc1(f0, FieldMemOperand(t1, HeapNumber::kValueOffset));
__ jmp(&done_restore);
__ bind(&restore_smi);
- __ SmiToDoubleFPURegister(a1, f0, a4);
+ __ SmiToDoubleFPURegister(t1, f0, a4);
__ bind(&done_restore);
}
__ SmiUntag(a3);
__ SmiUntag(a0);
+ __ Pop(cp, a1);
+ __ Pop(ra, fp);
}
__ jmp(&convert);
__ bind(&convert_number);
@@ -223,20 +230,21 @@ void Builtins::Generate_MathMaxMin(MacroAssembler* masm, MathMaxMinKind kind) {
}
__ Move(at, f0);
__ Branch(&loop, eq, a4, Operand(at));
- __ mov(a1, a2);
+ __ mov(t1, a2);
__ jmp(&loop);
// At least one side is NaN, which means that the result will be NaN too.
__ bind(&compare_nan);
- __ LoadRoot(a1, Heap::kNanValueRootIndex);
- __ ldc1(f0, FieldMemOperand(a1, HeapNumber::kValueOffset));
+ __ LoadRoot(t1, Heap::kNanValueRootIndex);
+ __ ldc1(f0, FieldMemOperand(t1, HeapNumber::kValueOffset));
__ jmp(&loop);
}
__ bind(&done_loop);
__ Dlsa(sp, sp, a3, kPointerSizeLog2);
+ __ Dsubu(sp, sp, kPointerSize);
__ Ret(USE_DELAY_SLOT);
- __ mov(v0, a1); // In delay slot.
+ __ mov(v0, t1); // In delay slot.
}
// static
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