Revision: 21957
Author: [email protected]
Date: Tue Jun 24 08:16:33 2014 UTC
Log: ARM64: Clean up LiveEdit.
BUG=
[email protected]
Review URL: https://codereview.chromium.org/349973007
http://code.google.com/p/v8/source/detail?r=21957
Modified:
/branches/bleeding_edge/src/arm64/debug-arm64.cc
=======================================
--- /branches/bleeding_edge/src/arm64/debug-arm64.cc Mon Jun 23 13:20:26
2014 UTC
+++ /branches/bleeding_edge/src/arm64/debug-arm64.cc Tue Jun 24 08:16:33
2014 UTC
@@ -132,12 +132,10 @@
FrameScope scope(masm, StackFrame::INTERNAL);
// Load padding words on stack.
- __ ldr(scratch, Smi::FromInt(LiveEdit::kFramePaddingValue));
- for (int i = 0; i < LiveEdit::kFramePaddingInitialSize; i++) {
- __ push(scratch);
- }
- __ ldr(scratch, Smi::FromInt(LiveEdit::kFramePaddingInitialSize));
- __ push(scratch);
+ __ Mov(scratch, Smi::FromInt(LiveEdit::kFramePaddingValue));
+ __ PushMultipleTimes(scratch, LiveEdit::kFramePaddingInitialSize);
+ __ Mov(scratch, Smi::FromInt(LiveEdit::kFramePaddingInitialSize));
+ __ Push(scratch);
// Any live values (object_regs and non_object_regs) in caller-saved
// registers (or lr) need to be stored on the stack so that their
values are
@@ -360,25 +358,28 @@
ExternalReference restarter_frame_function_slot =
ExternalReference::debug_restarter_frame_function_pointer_address(
masm->isolate());
- __ mov(x1, xzr);
- __ Mov(ip0, restarter_frame_function_slot);
- __ str(x1, MemOperand(ip0, 0));
+ UseScratchRegisterScope temps(masm);
+ Register scratch = temps.AcquireX();
+
+ __ Mov(scratch, restarter_frame_function_slot);
+ __ Str(xzr, MemOperand(scratch));
// We do not know our frame height, but set sp based on fp.
- __ sub(jssp, fp, Operand(kPointerSize));
+ __ Sub(masm->StackPointer(), fp, kPointerSize);
+ __ AssertStackConsistency();
__ Pop(x1, fp, lr); // Function, Frame, Return address.
// Load context from the function.
- __ ldr(cp, FieldMemOperand(x1, JSFunction::kContextOffset));
+ __ Ldr(cp, FieldMemOperand(x1, JSFunction::kContextOffset));
// Get function code.
- __ ldr(ip0, FieldMemOperand(x1, JSFunction::kSharedFunctionInfoOffset));
- __ ldr(ip0, FieldMemOperand(ip0, SharedFunctionInfo::kCodeOffset));
- __ add(ip0, ip0, Operand(Code::kHeaderSize - kHeapObjectTag));
+ __ Ldr(scratch, FieldMemOperand(x1,
JSFunction::kSharedFunctionInfoOffset));
+ __ Ldr(scratch, FieldMemOperand(scratch,
SharedFunctionInfo::kCodeOffset));
+ __ Add(scratch, scratch, Code::kHeaderSize - kHeapObjectTag);
// Re-run JSFunction, x1 is function, cp is context.
- __ Jump(ip0);
+ __ Br(scratch);
}
--
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