pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart - Issue 958603002: Added VariableUse expression to tree IR.

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Unified Diff: pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart

Issue 958603002: Added VariableUse expression to tree IR. (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 5 years, 10 months ago

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Index: pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart

diff --git a/pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart b/pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart

index c4611570fd63e18dd7b68df0f8b813549b3ac33b..a25d47f9d27d0ffa0212e0a320059cf28ffb122c 100644

--- a/pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart

+++ b/pkg/compiler/lib/src/tree_ir/optimization/loop_rewriter.dart

@@ -43,7 +43,8 @@ class LoopRewriter extends RecursiveVisitor with PassMixin {

Statement visitAssign(Assign node) {

// Clean up redundant assignments left behind in the previous phase.

- if (node.variable == node.definition) {

+ Expression def = node.definition;

+ if (def is VariableUse && node.variable == def.variable) {

--node.variable.readCount;

--node.variable.writeCount;

return visitStatement(node.next);