runtime/vm/flow_graph_type_propagator.cc - Issue 14021016: Track side-effect free paths in the graph to allow CSE and LICM for instructions that depend on som…

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Unified Diff: runtime/vm/flow_graph_type_propagator.cc

Issue 14021016: Track side-effect free paths in the graph to allow CSE and LICM for instructions that depend on som… (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 7 years, 8 months ago

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Index: runtime/vm/flow_graph_type_propagator.cc

diff --git a/runtime/vm/flow_graph_type_propagator.cc b/runtime/vm/flow_graph_type_propagator.cc

index f3f77f8a82fc84465ae6fa7981def4778e4899cd..a96137a39eb0ac05ec36ef2fc2f83720562ac4bf 100644

--- a/runtime/vm/flow_graph_type_propagator.cc

+++ b/runtime/vm/flow_graph_type_propagator.cc

@@ -256,7 +256,7 @@ void FlowGraphTypePropagator::VisitCheckSmi(CheckSmiInstr* check) {

void FlowGraphTypePropagator::VisitCheckClass(CheckClassInstr* check) {

if ((check->unary_checks().NumberOfChecks() != 1) ||

- check->AffectedBySideEffect()) {

+ !check->Dependencies().IsNone()) {

// TODO(vegorov): If check is affected by side-effect we can still propagate

// the type further but not the cid.

return;

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