ia32: Fix comparisons of two constant double operands when exactly one of them is in new space.

test/mjsunit/regress/regress-compare-constant-doubles.js

Index: test/mjsunit/regress/regress-compare-constant-doubles.js
diff --git a/test/mjsunit/constant-compare-nil-value.js b/test/mjsunit/regress/regress-compare-constant-doubles.js
similarity index 78%
copy from test/mjsunit/constant-compare-nil-value.js
copy to test/mjsunit/regress/regress-compare-constant-doubles.js
index 9f5b2adb063abc0c7920d8dee30edb7ee6eb1ff9..0f8ffe307d154178993da4db370c7201552504a7 100644
--- a/test/mjsunit/constant-compare-nil-value.js
+++ b/test/mjsunit/regress/regress-compare-constant-doubles.js
@@ -27,16 +27,32 @@
 
 // Flags: --allow-natives-syntax
 
-function inlined() {
-    return 1;
-}
+var left = 1.5;
+var right;
+
+var keepalive;
 
 function foo() {
-    if ((inlined() + 0.5) == null) return "null";
-    return "non-null";
+  // Fill XMM registers with cruft.
+  var a1 = Math.sin(1) + 10;
+  var a2 = a1 + 1;
+  var a3 = a2 + 1;
+  var a4 = a3 + 1;
+  var a5 = a4 + 1;
+  var a6 = a5 + 1;
+  keepalive = [a1, a2, a3, a4, a5, a6];
+
+  // Actual test.
+  if (left < right) return "ok";
+  return "bad";
+}
+
+function prepare(base) {
+  right = 0.5 * base;
 }
 
-assertEquals("non-null", foo());
-assertEquals("non-null", foo());
+prepare(21);
+assertEquals("ok", foo());
+assertEquals("ok", foo());
 %OptimizeFunctionOnNextCall(foo);
-assertEquals("non-null", foo());
+assertEquals("ok", foo());