Fix x64 MathMinMax for negative untagged int32 arguments.

test/mjsunit/regress/regress-164442.js

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 // Flags: --allow-natives-syntax
 
-// Check that Math.sqrt returns the same value regardless of being
-// optimized or not.
+// Should not take a very long time (n^2 algorithms are bad)
 
-function f(x) {
-  return Math.sqrt(x);
+
+function ensureNotNegative(x) {
+  return Math.max(0, x | 0);
 }
 
-var x = 7.0506280066499245e-233;
 
-var a = f(x);
+ensureNotNegative(1);
+ensureNotNegative(2);
 
-f(0.1);
-f(0.2);
-%OptimizeFunctionOnNextCall(f);
+%OptimizeFunctionOnNextCall(ensureNotNegative);
 
-var b = f(x);
+var r = ensureNotNegative(-1);
 
-assertEquals(a, b);
+assertEquals(0, r);