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Unified Diff: runtime/vm/flow_graph_type_propagator.cc

Issue 105143011: Optimize one byte string comparisons. (Closed) Base URL: http://dart.googlecode.com/svn/branches/bleeding_edge/dart/
Patch Set: Created 7 years ago
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Index: runtime/vm/flow_graph_type_propagator.cc
===================================================================
--- runtime/vm/flow_graph_type_propagator.cc (revision 31282)
+++ runtime/vm/flow_graph_type_propagator.cc (working copy)
@@ -874,8 +874,13 @@
}
-CompileType StringFromCharCodeInstr::ComputeType() const {
- return CompileType::FromCid(cid_);
+CompileType StringCharCodeInstr::ComputeType() const {
+ if (kind() == StringCharCodeInstr::kFromCharCode) {
+ return CompileType::FromCid(cid_);
+ } else {
+ ASSERT(kind() == StringCharCodeInstr::kToCharCode);
+ return CompileType::FromCid(kSmiCid);
+ }
}

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