PPC: [debugger] simplify reloc info for debug break slots.

Port 531dde9f

Original commit message:
    The new step-in implementation no longer tries to predict the step-in
    target, so we don't need the arguments count nor call type anymore.

R=yangguo@chromium.org, joransiu@ca.ibm.com, jyan@ca.ibm.com, michael_dawson@ca.ibm.com
BUG=

Review URL: https://codereview.chromium.org/1490413002

Cr-Commit-Position: refs/heads/master@{#32533}

src/debug/ppc/debug-ppc.cc

@@ -24,12 +24,11 @@ void EmitDebugBreakSlot(MacroAssembler* masm) {
 }
 
 
-void DebugCodegen::GenerateSlot(MacroAssembler* masm, RelocInfo::Mode mode,
-                                int call_argc) {
+void DebugCodegen::GenerateSlot(MacroAssembler* masm, RelocInfo::Mode mode) {
   // Generate enough nop's to make space for a call instruction. Avoid emitting
   // the trampoline pool in the debug break slot code.
   Assembler::BlockTrampolinePoolScope block_trampoline_pool(masm);
-  masm->RecordDebugBreakSlot(mode, call_argc);
+  masm->RecordDebugBreakSlot(mode);
   EmitDebugBreakSlot(masm);
 }
 

src/full-codegen/ppc/full-codegen-ppc.cc

@@ -2011,7 +2011,7 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
       CallIC(ic, TypeFeedbackId::None());
       __ mr(r4, r3);
       __ StoreP(r4, MemOperand(sp, 2 * kPointerSize));
-      SetCallPosition(expr, 1);
+      SetCallPosition(expr);
       __ li(r3, Operand(1));
       __ Call(
           isolate()->builtins()->Call(ConvertReceiverMode::kNotNullOrUndefined),
@@ -2867,7 +2867,7 @@ void FullCodeGenerator::EmitCall(Call* expr, ConvertReceiverMode mode) {
   }
 
   PrepareForBailoutForId(expr->CallId(), NO_REGISTERS);
-  SetCallPosition(expr, arg_count);
+  SetCallPosition(expr);
   Handle<Code> ic = CodeFactory::CallIC(isolate(), arg_count, mode).code();
   __ LoadSmiLiteral(r6, SmiFromSlot(expr->CallFeedbackICSlot()));
   __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
@@ -2975,7 +2975,7 @@ void FullCodeGenerator::EmitPossiblyEvalCall(Call* expr) {
   PrepareForBailoutForId(expr->EvalId(), NO_REGISTERS);
 
   // Record source position for debugger.
-  SetCallPosition(expr, arg_count);
+  SetCallPosition(expr);
   __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
   __ mov(r3, Operand(arg_count));
   __ Call(isolate()->builtins()->Call(), RelocInfo::CODE_TARGET);
@@ -3007,7 +3007,7 @@ void FullCodeGenerator::VisitCallNew(CallNew* expr) {
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetConstructCallPosition(expr, arg_count);
+  SetConstructCallPosition(expr);
 
   // Load function and argument count into r4 and r3.
   __ mov(r3, Operand(arg_count));
@@ -3043,7 +3043,7 @@ void FullCodeGenerator::EmitSuperConstructorCall(Call* expr) {
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetConstructCallPosition(expr, arg_count);
+  SetConstructCallPosition(expr);
 
   // Load new target into r6.
   VisitForAccumulatorValue(super_call_ref->new_target_var());
@@ -3744,7 +3744,7 @@ void FullCodeGenerator::EmitDefaultConstructorCallSuper(CallRuntime* expr) {
 
   // Call the construct call builtin that handles allocation and
   // constructor invocation.
-  SetConstructCallPosition(expr, 0);
+  SetConstructCallPosition(expr);
 
   // Check if the calling frame is an arguments adaptor frame.
   Label adaptor_frame, args_set_up, runtime;
@@ -4135,7 +4135,7 @@ void FullCodeGenerator::EmitCallJSRuntimeFunction(CallRuntime* expr) {
   ZoneList<Expression*>* args = expr->arguments();
   int arg_count = args->length();
 
-  SetCallPosition(expr, arg_count);
+  SetCallPosition(expr);
   __ LoadP(r4, MemOperand(sp, (arg_count + 1) * kPointerSize), r0);
   __ mov(r3, Operand(arg_count));
   __ Call(isolate()->builtins()->Call(ConvertReceiverMode::kNullOrUndefined),

src/ppc/assembler-ppc.h

@@ -1174,7 +1174,7 @@ class Assembler : public AssemblerBase {
   void RecordGeneratorContinuation();
 
   // Mark address of a debug break slot.
-  void RecordDebugBreakSlot(RelocInfo::Mode mode, int argc = 0);
+  void RecordDebugBreakSlot(RelocInfo::Mode mode);
 
   // Record the AST id of the CallIC being compiled, so that it can be placed
   // in the relocation information.