Backed out changeset e8dfde56e9ca (bug 925123) for jsreftest failures; CLOSED TREE

js/src/jsmath.cpp

@@ -309,29 +309,6 @@ js::math_ceil(JSContext *cx, unsigned argc, Value *vp)
     return true;
 }
 
-bool
-js::math_clz32(JSContext *cx, unsigned argc, Value *vp)
-{
-    CallArgs args = CallArgsFromVp(argc, vp);
-
-    if (args.length() == 0) {
-        args.rval().setInt32(32);
-        return true;
-    }
-
-    uint32_t n;
-    if (!ToUint32(cx, args[0], &n))
-        return false;
-
-    if (n == 0) {
-        args.rval().setInt32(32);
-        return true;
-    }
-
-    args.rval().setInt32(mozilla::CountLeadingZeroes32(n));
-    return true;
-}
-
 /*
  * Fast sine and cosine approximation code, based on the sin [0] and cos [1]
  * implementations [2] in the cephes library [3].
@@ -1558,7 +1535,6 @@ static const JSFunctionSpec math_static_methods[] = {
     JS_FN("atan",           math_atan,            1, 0),
     JS_FN("atan2",          math_atan2,           2, 0),
     JS_FN("ceil",           math_ceil,            1, 0),
-    JS_FN("clz32",          math_clz32,           1, 0),
     JS_FN("cos",            math_cos,             1, 0),
     JS_FN("exp",            math_exp,             1, 0),
     JS_FN("floor",          math_floor,           1, 0),

js/src/jsmath.h

@@ -247,9 +247,6 @@ math_ceil(JSContext *cx, unsigned argc, Value *vp);
 extern double
 math_ceil_impl(double x);
 
-extern bool
-math_clz32(JSContext *cx, unsigned argc, Value *vp);
-
 extern bool
 math_floor(JSContext *cx, unsigned argc, Value *vp);
 

js/src/tests/ecma_6/Math/clz32.js

@@ -1,38 +0,0 @@
-// Undefined and NaN end up as zero after ToUint32
-assertEq(Math.clz32(), 32);
-assertEq(Math.clz32(NaN), 32);
-assertEq(Math.clz32.call(), 32);
-// 0
-assertEq(Math.clz32(null), 32);
-assertEq(Math.clz32(false), 32);
-// 1
-assertEq(Math.clz32(true), 31);
-// 3
-assertEq(Math.clz32(3.5), 30);
-// NaN -> 0
-assertEq(Math.clz32({}), 32);
-// 2
-assertEq(Math.clz32({valueOf: function() { return 2; }}), 30);
-// 0 -> 0
-assertEq(Math.clz32([]), 32);
-assertEq(Math.clz32(""), 32);
-// NaN -> 0
-assertEq(Math.clz32([1, 2, 3]), 32);
-assertEq(Math.clz32("bar"), 32);
-// 15
-assertEq(Math.clz32("15"), 28);
-
-
-assertEq(Math.clz32(0x80000000), 0);
-assertEq(Math.clz32(0xF0FF1000), 0);
-assertEq(Math.clz32(0x7F8F0001), 1);
-assertEq(Math.clz32(0x3FFF0100), 2);
-assertEq(Math.clz32(0x1FF50010), 3);
-assertEq(Math.clz32(0x00800000), 8);
-assertEq(Math.clz32(0x00400000), 9);
-assertEq(Math.clz32(0x00008000), 16);
-assertEq(Math.clz32(0x00004000), 17);
-assertEq(Math.clz32(0x00000080), 24);
-assertEq(Math.clz32(0x00000040), 25);
-assertEq(Math.clz32(0x00000001), 31);
-assertEq(Math.clz32(0), 32);