Deopt on overflow in integer mod.

test/mjsunit/regress/regress-166379.js

Index: test/mjsunit/regress/regress-166379.js
diff --git a/test/mjsunit/regress/regress-2045.js b/test/mjsunit/regress/regress-166379.js
similarity index 86%
copy from test/mjsunit/regress/regress-2045.js
copy to test/mjsunit/regress/regress-166379.js
index 822ee1fa4641b4a0ba15eee2c2a2e59411db7d4d..b19afbdde630e4eef2b14da12fae14349dbe0d2a 100644
--- a/test/mjsunit/regress/regress-2045.js
+++ b/test/mjsunit/regress/regress-166379.js
@@ -27,23 +27,13 @@
 
 // Flags: --allow-natives-syntax
 
-function foo() {
-  assertEquals(2, arguments.length);
-}
+function mod(a, b) { return a % b; }
 
-function bar() {
-  G.x;
-  return foo.apply(this, arguments);
-}
+// Feed integer type info and optimize.
+assertEquals(0, mod(4, 2));
+assertEquals(1, mod(3, 2));
+%OptimizeFunctionOnNextCall(mod);
 
-function baz() {
-  return bar(1, 2);
-}
+// Surprise mod with overflow.
+assertEquals(-Infinity, 1/mod(-2147483648, -1));
 
-G = {x: 0};
-baz();
-baz();
-%OptimizeFunctionOnNextCall(baz);
-baz();
-delete G.x;
-baz();