Remove the flag --debug-info

This flag has not bees set to false for years, and even when building without debugging support the position information is required for stack traces.

R=ager@chromium.org

BUG=none
TEST=none

Review URL: http://codereview.chromium.org//7046078

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@8252 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/lithium-codegen-arm.cc

@@ -770,7 +770,7 @@ void LCodeGen::RecordSafepointWithRegistersAndDoubles(
 
 
 void LCodeGen::RecordPosition(int position) {
-  if (!FLAG_debug_info || position == RelocInfo::kNoPosition) return;
+  if (position == RelocInfo::kNoPosition) return;
   masm()->positions_recorder()->RecordPosition(position);
 }
 

src/flag-definitions.h

@@ -199,7 +199,6 @@ DEFINE_bool(opt, true, "use adaptive optimizations")
 DEFINE_bool(opt_eagerly, false, "be more eager when adaptively optimizing")
 DEFINE_bool(always_opt, false, "always try to optimize functions")
 DEFINE_bool(prepare_always_opt, false, "prepare for turning on always opt")
-DEFINE_bool(debug_info, true, "add debug information to compiled functions")
 DEFINE_bool(deopt, true, "support deoptimization")
 DEFINE_bool(trace_deopt, false, "trace deoptimization")
 

src/full-codegen.cc

@@ -572,21 +572,16 @@ void FullCodeGenerator::VisitDeclarations(
 
 
 void FullCodeGenerator::SetFunctionPosition(FunctionLiteral* fun) {
-  if (FLAG_debug_info) {
   CodeGenerator::RecordPositions(masm_, fun->start_position());
-  }
 }
 
 
 void FullCodeGenerator::SetReturnPosition(FunctionLiteral* fun) {
-  if (FLAG_debug_info) {
   CodeGenerator::RecordPositions(masm_, fun->end_position() - 1);
-  }
 }
 
 
 void FullCodeGenerator::SetStatementPosition(Statement* stmt) {
-  if (FLAG_debug_info) {
 #ifdef ENABLE_DEBUGGER_SUPPORT
   if (!isolate()->debugger()->IsDebuggerActive()) {
     CodeGenerator::RecordPositions(masm_, stmt->statement_pos());
@@ -609,12 +604,10 @@ void FullCodeGenerator::SetStatementPosition(Statement* stmt) {
 #else
   CodeGenerator::RecordPositions(masm_, stmt->statement_pos());
 #endif
-  }
 }
 
 
 void FullCodeGenerator::SetExpressionPosition(Expression* expr, int pos) {
-  if (FLAG_debug_info) {
 #ifdef ENABLE_DEBUGGER_SUPPORT
   if (!isolate()->debugger()->IsDebuggerActive()) {
     CodeGenerator::RecordPositions(masm_, pos);
@@ -641,19 +634,16 @@ void FullCodeGenerator::SetExpressionPosition(Expression* expr, int pos) {
 #else
   CodeGenerator::RecordPositions(masm_, pos);
 #endif
-  }
 }
 
 
 void FullCodeGenerator::SetStatementPosition(int pos) {
-  if (FLAG_debug_info) {
   CodeGenerator::RecordPositions(masm_, pos);
-  }
 }
 
 
 void FullCodeGenerator::SetSourcePosition(int pos) {
-  if (FLAG_debug_info && pos != RelocInfo::kNoPosition) {
+  if (pos != RelocInfo::kNoPosition) {
     masm_->positions_recorder()->RecordPosition(pos);
   }
 }

src/ia32/lithium-codegen-ia32.cc

@@ -693,7 +693,7 @@ void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers,
 
 
 void LCodeGen::RecordPosition(int position) {
-  if (!FLAG_debug_info || position == RelocInfo::kNoPosition) return;
+  if (position == RelocInfo::kNoPosition) return;
   masm()->positions_recorder()->RecordPosition(position);
 }
 

src/x64/lithium-codegen-x64.cc

@@ -692,7 +692,7 @@ void LCodeGen::RecordSafepointWithRegisters(LPointerMap* pointers,
 
 
 void LCodeGen::RecordPosition(int position) {
-  if (!FLAG_debug_info || position == RelocInfo::kNoPosition) return;
+  if (position == RelocInfo::kNoPosition) return;
   masm()->positions_recorder()->RecordPosition(position);
 }