[turbofan] NaN is never truish.

test/mjsunit/compiler/regress-4207.js

Index: test/mjsunit/compiler/regress-4207.js
diff --git a/test/mjsunit/compiler/regress-491578.js b/test/mjsunit/compiler/regress-4207.js
similarity index 68%
copy from test/mjsunit/compiler/regress-491578.js
copy to test/mjsunit/compiler/regress-4207.js
index c27570456c31e9a191fe1f4f1ea17b80f29de98e..6f54509b5a40c7a91acfba30d64ccf1b54c6a3c1 100644
--- a/test/mjsunit/compiler/regress-491578.js
+++ b/test/mjsunit/compiler/regress-4207.js
@@ -4,12 +4,7 @@
 
 // Flags: --allow-natives-syntax
 
-function foo(x) {
-  if (x === undefined) return;
-  while (true) {
-    while (1 || 2) { }
-    f();
-  }
-}
+function foo() { return 0/0 || 1; }

[titzer, 2015/06/23 11:41:27]

What about adding a test for && as well?

[Benedikt Meurer, 2015/06/23 11:58:53]

Done.

+assertEquals(1, foo());
 %OptimizeFunctionOnNextCall(foo);
-foo();
+assertEquals(1, foo());