runtime/vm/flow_graph_type_propagator.cc - Issue 353513002: Use range information for optimizing integer boxing and fix bug in range analysis.

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Unified Diff: runtime/vm/flow_graph_type_propagator.cc

Issue 353513002: Use range information for optimizing integer boxing and fix bug in range analysis. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/

Patch Set: Created 6 years, 6 months ago

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Index: runtime/vm/flow_graph_type_propagator.cc

===================================================================

--- runtime/vm/flow_graph_type_propagator.cc (revision 37654)

+++ runtime/vm/flow_graph_type_propagator.cc (working copy)

@@ -1043,10 +1043,18 @@

CompileType BoxIntegerInstr::ComputeType() const {

+ if (is_smi()) {

+ return CompileType::FromCid(kSmiCid);

+ }

return CompileType::Int();

}

+bool BoxIntegerInstr::RecomputeType() {

+ return UpdateType(ComputeType());

CompileType UnboxIntegerInstr::ComputeType() const {

return CompileType::Int();

}

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