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Allow debugger to stop when reading a static field
Add a DebugStepCheck when the right-hand side of an expression is an access to a static field or top-level variable. BUG=#28453 R=rmacnak@google.com Review-Url: https://codereview.chromium.org/2650823007 .
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@ -3364,7 +3364,7 @@ void EffectGraphVisitor::VisitStoreLocalNode(StoreLocalNode* node) {
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if (rhs->IsAssignableNode()) {
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rhs = rhs->AsAssignableNode()->expr();
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}
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if ((rhs->IsLiteralNode() ||
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if ((rhs->IsLiteralNode() || rhs->IsLoadStaticFieldNode() ||
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(rhs->IsLoadLocalNode() &&
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!rhs->AsLoadLocalNode()->local().IsInternal()) ||
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rhs->IsClosureNode()) &&
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@ -3476,7 +3476,7 @@ Definition* EffectGraphVisitor::BuildStoreStaticField(
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rhs = rhs->AsAssignableNode()->expr();
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}
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if ((rhs->IsLiteralNode() || rhs->IsLoadLocalNode() ||
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rhs->IsClosureNode()) &&
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rhs->IsLoadStaticFieldNode() || rhs->IsClosureNode()) &&
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node->token_pos().IsDebugPause()) {
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AddInstruction(new (Z) DebugStepCheckInstr(
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node->token_pos(), RawPcDescriptors::kRuntimeCall));
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@ -4207,6 +4207,7 @@ void EffectGraphVisitor::BuildThrowNode(ThrowNode* node) {
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if (FLAG_support_debugger) {
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if (node->exception()->IsLiteralNode() ||
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node->exception()->IsLoadLocalNode() ||
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node->exception()->IsLoadStaticFieldNode() ||
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node->exception()->IsClosureNode()) {
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AddInstruction(new (Z) DebugStepCheckInstr(
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node->token_pos(), RawPcDescriptors::kRuntimeCall));
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