diff options
Diffstat (limited to 'tools/js-optimizer.js')
| -rw-r--r-- | tools/js-optimizer.js | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js index 29aecdcf..62161738 100644 --- a/tools/js-optimizer.js +++ b/tools/js-optimizer.js @@ -1464,7 +1464,7 @@ function eliminate(ast, memSafe) { for (var name in locals) { if (definitions[name] == 1 && uses[name] == 1) { potentials[name] = 1; - } else if (uses[name] == 0) { + } else if (uses[name] == 0 && (!definitions[name] || definitions[name] <= 1)) { // no uses, no def or 1 def (cannot operate on phis, and the llvm optimizer will remove unneeded phis anyhow) var hasSideEffects = false; if (values[name]) { traverse(values[name], function(node, type) { |