accept either 0.0 or +0 as double in asm coercion

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/js-optimizer.js b/tools/js-optimizer.js
index 77c48a23..103fb1fe 100644
--- a/tools/js-optimizer.js
+++ b/tools/js-optimizer.js
@@ -1251,7 +1251,8 @@ var ASM_INT = 0;
 var ASM_DOUBLE = 1;
 
 function detectAsmCoercion(node) {
-  // for params, +x vs x|0, for vars, +0 vs 0, so check for "+"
+  // for params, +x vs x|0, for vars, 0.0 vs 0
+  if (node[0] == 'num' && node[1].toString().indexOf('.') >= 0) return ASM_DOUBLE;
   return node[0] == 'unary-prefix' ? ASM_DOUBLE : ASM_INT;
 }