diff --git a/haste-compiler.cabal b/haste-compiler.cabal
--- a/haste-compiler.cabal
+++ b/haste-compiler.cabal
@@ -1,5 +1,5 @@
 Name:           haste-compiler
-Version:        0.2.1
+Version:        0.2.2
 License:        BSD3
 License-File:   LICENSE
 Synopsis:       Haskell To ECMAScript compiler
@@ -29,6 +29,7 @@
     md5.js
     array.js
     pointers.js
+    unicode.js
     debug.js
 
 Executable haste-boot
diff --git a/lib/Integer.js b/lib/Integer.js
--- a/lib/Integer.js
+++ b/lib/Integer.js
@@ -77,7 +77,7 @@
       result = I_add(I_mul(result, power), I_fromNumber(value));
     } else {
       result = I_mul(result, radixToPower);
-      result = I_add(add, I_fromNumber(value));
+      result = I_add(result, I_fromNumber(value));
     }
   }
   return result;
@@ -324,11 +324,11 @@
 }
 
 var I_quotRem = function(self, other) {
-  return [1, I_quot(self, other), I_rem(self, other)];
+  return [0, I_quot(self, other), I_rem(self, other)];
 }
 
 var I_divMod = function(self, other) {
-  return [1, I_div(self, other), I_mod(self, other)];
+  return [0, I_div(self, other), I_mod(self, other)];
 }
 
 var I_quot = function(self, other) {
@@ -468,7 +468,7 @@
   if(dec[1] < 0) {
     mantissa = I_negate(mantissa);
   }
-  return [1, dec[4], mantissa];
+  return [0, dec[4], mantissa];
 }
 
 var I_toString = function(self) {
diff --git a/lib/MVar.js b/lib/MVar.js
--- a/lib/MVar.js
+++ b/lib/MVar.js
@@ -9,11 +9,11 @@
 
 function tryTakeMVar(mv) {
     if(mv.empty) {
-        return [1, 0, undefined];
+        return [0, 0, undefined];
     } else {
         mv.empty = true;
         mv.x = null;
-        return [1, 1, mv.x];
+        return [0, 1, mv.x];
     }
 }
 
diff --git a/lib/rts.js b/lib/rts.js
--- a/lib/rts.js
+++ b/lib/rts.js
@@ -8,10 +8,6 @@
 */
 
 function T(f) {
-    return new Thunk(f);
-}
-
-function Thunk(f) {
     this.f = f;
 }
 
@@ -22,7 +18,7 @@
    function) is then applied to the remaining arguments.
 */
 function A(f, args) {
-    f = f instanceof Thunk ? E(f) : f;
+    f = f instanceof T ? E(f) : f;
     // Closure does some funny stuff with functions that occasionally
     // results in non-functions getting applied, so we have to deal with
     // it.
@@ -52,7 +48,7 @@
    If the "thunk" we get isn't actually a thunk, just return it.
 */
 function E(t) {
-    if(t instanceof Thunk) {
+    if(t instanceof T) {
         if(t.f) {
             t.x = t.f();
             t.f = 0;
@@ -74,7 +70,7 @@
 }
 
 function quotRemI(a, b) {
-    return [1, (a-a%b)/b, a%b];
+    return [0, (a-a%b)/b, a%b];
 }
 
 // 32 bit integer multiplication, with correct overflow behavior
@@ -90,12 +86,12 @@
 
 function addC(a, b) {
     var x = a+b;
-    return [1, x & 0xffffffff, x > 0x7fffffff];
+    return [0, x & 0xffffffff, x > 0x7fffffff];
 }
 
 function subC(a, b) {
     var x = a-b;
-    return [1, x & 0xffffffff, x < -2147483648];
+    return [0, x & 0xffffffff, x < -2147483648];
 }
 
 function sinh (arg) {
@@ -126,7 +122,7 @@
     } else {
         man |= (1 << 23);
     }
-    return [1, sign*man, exp];
+    return [0, sign*man, exp];
 }
 
 function decodeDouble(x) {
@@ -140,7 +136,7 @@
     } else {
         manHigh |= (1 << 20);
     }
-    return [1, sign, manHigh, manLow, exp];
+    return [0, sign, manHigh, manLow, exp];
 }
 
 function err(str) {
@@ -150,12 +146,12 @@
 /* unpackCString#
    NOTE: update constructor tags if the code generator starts munging them.
 */
-function unCStr(str) {return unAppCStr(str, [1]);}
+function unCStr(str) {return unAppCStr(str, [0]);}
 
 function unFoldrCStr(str, f, z) {
     var acc = z;
     for(var i = str.length-1; i >= 0; --i) {
-        acc = A(f, [[1, str.charCodeAt(i)], acc]);
+        acc = A(f, [[0, str.charCodeAt(i)], acc]);
     }
     return acc;
 }
@@ -165,7 +161,7 @@
     if(i >= str.length) {
         return E(chrs);
     } else {
-        return [2,[1,str.charCodeAt(i)],T(function() {
+        return [1,[0,str.charCodeAt(i)],new T(function() {
             return unAppCStr(str,chrs,i+1);
         })];
     }
@@ -179,10 +175,10 @@
 
 function toJSStr(hsstr) {
     var s = '';
-    for(var str = E(hsstr); str[0] == 2; str = E(str[2])) {
+    for(var str = E(hsstr); str[0] == 1; str = E(str[2])) {
         s += String.fromCharCode(E(str[1])[1]);
     }
-    return [1,s];
+    return [0,s];
 }
 
 // newMutVar
@@ -227,15 +223,12 @@
 }
 
 function strOrd(a, b) {
-    var ord;
     if(a < b) {
-        ord = [1];
+        return [0];
     } else if(a == b) {
-        ord = [2];
-    } else {
-        ord = [3];
+        return [1];
     }
-    return ord;
+    return [2];
 }
 
 function jsCatch(act, handler) {
@@ -267,9 +260,9 @@
  */
 function dataToTag(x) {
     if(x instanceof Array) {
-        return x[0]-1;
+        return x[0];
     } else {
-        return x-1;
+        return x;
     }
 }
 
diff --git a/lib/stdlib.js b/lib/stdlib.js
--- a/lib/stdlib.js
+++ b/lib/stdlib.js
@@ -45,7 +45,7 @@
     if(evt == 'change' && elem.type.toLowerCase() == 'text') {
         setCB(elem, 'keyup', function(k) {
             if(k == '\n'.charCodeAt(0)) {
-                A(cb,[[1,k.keyCode],0]);
+                A(cb,[[0,k.keyCode],0]);
             }
         });
     }
@@ -56,12 +56,12 @@
     case 'dblclick':
     case 'mouseup':
     case 'mousedown':
-        fun = function(x) {A(cb,[[1,x.button],0]);};
+        fun = function(x) {A(cb,[[0,x.button],0]);};
         break;
     case 'keypress':
     case 'keyup':
     case 'keydown':
-        fun = function(x) {A(cb,[[1,x.keyCode],0]);};
+        fun = function(x) {A(cb,[[0,x.keyCode],0]);};
         break;        
     default:
         fun = function() {A(cb,[0]);};
@@ -130,9 +130,9 @@
 function jsFind(elem) {
     var e = document.getElementById(elem)
     if(e) {
-        return [2,[1,e]];
+        return [1,[0,e]];
     }
-    return [1];
+    return [0];
 }
 
 function jsCreateElem(tag) {
@@ -143,29 +143,29 @@
     elem = elem.previousSibling;
     while(elem) {
         if(typeof elem.tagName != 'undefined') {
-            return [2,[1,elem]];
+            return [1,[0,elem]];
         }
         elem = elem.previousSibling;
     }
-    return [1];
+    return [0];
 }
 
 function jsGetLastChild(elem) {
     var len = elem.childNodes.length;
     for(var i = len-1; i >= 0; --i) {
         if(typeof elem.childNodes[i].tagName != 'undefined') {
-            return [2,[1,elem.childNodes[i]]];
+            return [1,[0,elem.childNodes[i]]];
         }
     }
-    return [1];
+    return [0];
 }
 
 function jsGetChildren(elem) {
-    var children = [1];
+    var children = [0];
     var len = elem.childNodes.length;
     for(var i = len-1; i >= 0; --i) {
         if(typeof elem.childNodes[i].tagName != 'undefined') {
-            children = [2, [1,elem.childNodes[i]], children];
+            children = [1, [0,elem.childNodes[i]], children];
         }
     }
     return children;
@@ -174,7 +174,7 @@
 function jsSetChildren(elem, children) {
     children = E(children);
     jsClearChildren(elem, 0);
-    while(children[0] === 2) {
+    while(children[0] === 1) {
         elem.appendChild(E(E(children[1])[1]));
         children = E(children[2]);
     }
@@ -218,24 +218,24 @@
         var js = JSON.parse(str);
         var hs = toHS(js);
     } catch(_) {
-        return [1];
+        return [0];
     }
-    return [2,hs];
+    return [1,hs];
 }
 
 function toHS(obj) {
     switch(typeof obj) {
     case 'number':
-        return [1, [1, jsRead(obj)]];
+        return [0, [0, jsRead(obj)]];
     case 'string':
-        return [2, [1, obj]];
+        return [1, [0, obj]];
         break;
     case 'boolean':
-        return [3, obj]; // Booleans are special wrt constructor tags!
+        return [2, obj]; // Booleans are special wrt constructor tags!
         break;
     case 'object':
         if(obj instanceof Array) {
-            return [4, arr2lst(obj, 0)];
+            return [3, arr2lst(obj, 0)];
         } else {
             // Object type but not array - it's a dictionary.
             // The RFC doesn't say anything about the ordering of keys, but
@@ -247,20 +247,20 @@
             for(var k in obj) {
                 ks.unshift(k);
             }
-            var xs = [1];
+            var xs = [0];
             for(var i in ks) {
-                xs = [2, [1, [1,ks[i]], toHS(obj[ks[i]])], xs];
+                xs = [1, [0, [0,ks[i]], toHS(obj[ks[i]])], xs];
             }
-            return [5, xs];
+            return [4, xs];
         }
     }
 }
 
 function arr2lst(arr, elem) {
     if(elem >= arr.length) {
-        return [1];
+        return [0];
     }
-    return [2, toHS(arr[elem]), T(function() {return arr2lst(arr,elem+1);})]
+    return [1, toHS(arr[elem]), new T(function() {return arr2lst(arr,elem+1);})]
 }
 
 function ajaxReq(method, url, async, postdata, cb) {
@@ -270,19 +270,11 @@
     xhr.onreadystatechange = function() {
         if(xhr.readyState == 4) {
             if(xhr.status == 200) {
-                A(cb,[[2,[1,xhr.responseText]],0]);
+                A(cb,[[1,[0,xhr.responseText]],0]);
             } else {
-                A(cb,[[1],0]); // Nothing
+                A(cb,[[0],0]); // Nothing
             }
         }
     }
     xhr.send(postdata);
-}
-
-function u_towlower(charCode) {
-    return String.fromCharCode(charCode).toLowerCase().charCodeAt(0);
-}
-
-function u_towupper(charCode) {
-    return String.fromCharCode(charCode).toUpperCase().charCodeAt(0);
 }
diff --git a/lib/unicode.js b/lib/unicode.js
new file mode 100644
--- /dev/null
+++ b/lib/unicode.js
@@ -0,0 +1,56 @@
+function withChar(f, charCode) {
+    return f(String.fromCharCode(charCode)).charCodeAt(0);
+}
+
+function u_towlower(charCode) {
+    return withChar(function(c) {return c.toLowerCase()}, charCode);
+}
+
+function u_towupper(charCode) {
+    return withChar(function(c) {return c.toUpperCase()}, charCode);
+}
+
+var u_towtitle = u_towupper;
+
+function u_iswupper(charCode) {
+    var c = String.fromCharCode(charCode);
+    return isNaN(c*1) && c == c.toUpperCase();
+}
+
+function u_iswlower(charCode) {
+    var c = String.fromCharCode(charCode);
+    return isNaN(c*1) && c == c.toLowerCase();
+}
+
+function u_iswdigit(charCode) {
+    return charCode >= 48 && charCode <= 57;
+}
+
+function u_iswcntrl(charCode) {
+    return charCode <= 0x1f || charCode == 0x7f;
+}
+
+function u_iswspace(charCode) {
+    var c = String.fromCharCode(charCode);
+    return c.replace(/\s/g,'') != c;
+}
+
+function u_iswalpha(charCode) {
+    var c = String.fromCharCode(charCode);
+    return c.replace(__hs_alphare, '') != c;
+}
+
+function u_iswalnum(charCode) {
+    return u_iswdigit(charCode) || u_iswalpha(charCode);
+}
+
+function u_iswprint(charCode) {
+    return !u_iswcntrl(charCode);
+}
+
+function u_gencat(c) {
+    throw 'u_gencat is not supported; submit a patch if you want it to be';
+}
+
+// Regex that matches any alphabetic character in any language. Horrible thing.
+var __hs_alphare = /[\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0\u08A2-\u08AC\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0977\u0979-\u097F\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB0\u0EB2\u0EB3\u0EBD\u0EC0-\u0EC4\u0EC6\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\u1248\u124A-\u124D\u1250-\u1256\u1258\u125A-\u125D\u1260-\u1288\u128A-\u128D\u1290-\u12B0\u12B2-\u12B5\u12B8-\u12BE\u12C0\u12C2-\u12C5\u12C8-\u12D6\u12D8-\u1310\u1312-\u1315\u1318-\u135A\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191C\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\u1F15\u1F18-\u1F1D\u1F20-\u1F45\u1F48-\u1F4D\u1F50-\u1F57\u1F59\u1F5B\u1F5D\u1F5F-\u1F7D\u1F80-\u1FB4\u1FB6-\u1FBC\u1FBE\u1FC2-\u1FC4\u1FC6-\u1FCC\u1FD0-\u1FD3\u1FD6-\u1FDB\u1FE0-\u1FEC\u1FF2-\u1FF4\u1FF6-\u1FFC\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA697\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA80-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D\uFB1F-\uFB28\uFB2A-\uFB36\uFB38-\uFB3C\uFB3E\uFB40\uFB41\uFB43\uFB44\uFB46-\uFBB1\uFBD3-\uFD3D\uFD50-\uFD8F\uFD92-\uFDC7\uFDF0-\uFDFB\uFE70-\uFE74\uFE76-\uFEFC\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC]/g;
diff --git a/src/ArgSpecs.hs b/src/ArgSpecs.hs
--- a/src/ArgSpecs.hs
+++ b/src/ArgSpecs.hs
@@ -20,12 +20,10 @@
               info = "Install all compiled modules into the user's jsmod "
                      ++ "library\nrather than linking them together into a JS"
                      ++ "blob."},
-    -- The opt-all enabling -O2 thing is handled directly in main! :(
     ArgSpec { optName = "opt-all",
               updateCfg = optAllSafe,
               info = "Enable all safe optimizations. "
-                     ++ "Equivalent to -O2 --opt-whole-program "
-                     ++ "--opt-google-closure."},
+                     ++ "Equivalent to -O2 --opt-google-closure."},
     ArgSpec { optName = "opt-all-unsafe",
               updateCfg = optAllUnsafe,
               info = "Enable all safe and unsafe optimizations.\n"
@@ -108,7 +106,7 @@
 
 -- | Enable all safe optimizations.
 optAllSafe :: Config -> [String] -> Config
-optAllSafe = updateClosureCfg ||| enableWholeProgramOpts
+optAllSafe = updateClosureCfg
 
 -- | Set the path to the Closure compiler.jar to use.
 updateClosureCfg :: Config -> [String] -> Config
diff --git a/src/Data/JSTarget/Constructors.hs b/src/Data/JSTarget/Constructors.hs
--- a/src/Data/JSTarget/Constructors.hs
+++ b/src/Data/JSTarget/Constructors.hs
@@ -84,7 +84,26 @@
 
 -- | Create a thunk.
 thunk :: AST Stm -> AST Exp
-thunk stm = callForeign "T" [Fun Nothing [] <$> stm]
+thunk stm@(AST s js) =
+  case s of
+    (Return ex) | not $ evaluates ex ->
+      AST ex js
+    _ ->
+      callForeign "new T" [Fun Nothing [] <$> stm]
+
+-- | Returns True if the given expression causes evaluation by appearing
+--   outside a closure, otherwise False.
+evaluates :: Exp -> Bool
+evaluates (Var _)        = False
+evaluates (Lit _)        = False
+evaluates (Not ex)       = evaluates ex
+evaluates (BinOp _ a b)  = evaluates a || evaluates b
+evaluates (Fun _ _ _)    = False
+evaluates (Call _ _ _ _) = True
+evaluates (Index a b)    = evaluates a || evaluates b
+evaluates (Arr xs)       = any evaluates xs
+evaluates (AssignEx a b) = evaluates a || evaluates b
+evaluates (IfEx c a b)   = evaluates c || evaluates a || evaluates b
 
 -- | Evaluate an expression that may or may not be a thunk.
 eval :: AST Exp -> AST Exp
diff --git a/src/Data/JSTarget/Optimize.hs b/src/Data/JSTarget/Optimize.hs
--- a/src/Data/JSTarget/Optimize.hs
+++ b/src/Data/JSTarget/Optimize.hs
@@ -88,7 +88,7 @@
 inlineAssigns :: JSTrav ast => Bool -> ast -> TravM ast
 inlineAssigns blackholeOK ast = do
     inlinable <- gatherInlinable ast
-    mapJS (const True) return (inl inlinable) ast
+    mapJS (const True) inlEx (inl inlinable) ast
   where
     varOccurs lhs (Exp (Var lhs')) = lhs == lhs'
     varOccurs _ _                  = False
@@ -117,6 +117,11 @@
         else do
           return keep
     inl _ stm = return stm
+
+    inlEx (Index (Arr xs) (Lit (LNum n))) =
+      return $ xs !! truncate n
+    inlEx x =
+      return x
 
 -- | Gather a map of all inlinable symbols; that is, the once that are used
 --   exactly once.
diff --git a/src/Data/JSTarget/Print.hs b/src/Data/JSTarget/Print.hs
--- a/src/Data/JSTarget/Print.hs
+++ b/src/Data/JSTarget/Print.hs
@@ -160,11 +160,11 @@
       indent $ pp def
       line "}"
   where
-    neg' c = maybe (Not c) id $ neg c 
     test (Lit (LBool True))  = cond
     test (Lit (LBool False)) = Not cond
     test (Lit (LNum 0))      = Not cond
     test c                   = BinOp Eq cond c
+    neg' c = maybe (Not c) id (neg c)
 prettyCase _ def [] = do
   pp def
 prettyCase cond def alts = do
@@ -209,9 +209,16 @@
                   else pp x
 
 -- | Normalize an operator expression by shifting parentheses to the left for
---   all associative operators.
+--   all associative operators and eliminating comparisons with true/false.
 norm :: Exp -> Exp
 norm (BinOp op a (BinOp op' b c)) | op == op' && opIsAssoc op =
   norm (BinOp op (BinOp op a b) c)
-norm e =
-  e
+norm (BinOp Eq a (Lit (LBool True)))   = norm a
+norm (BinOp Eq (Lit (LBool True)) b)   = norm b
+norm (BinOp Eq a (Lit (LBool False)))  = Not (norm a)
+norm (BinOp Eq (Lit (LBool False)) b)  = Not (norm b)
+norm (BinOp Neq a (Lit (LBool True)))  = Not (norm a)
+norm (BinOp Neq (Lit (LBool True)) b)  = Not (norm b)
+norm (BinOp Neq a (Lit (LBool False))) = norm a
+norm (BinOp Neq (Lit (LBool False)) b) = norm b
+norm e = e
diff --git a/src/Haste/CodeGen.hs b/src/Haste/CodeGen.hs
--- a/src/Haste/CodeGen.hs
+++ b/src/Haste/CodeGen.hs
@@ -30,7 +30,7 @@
 import BasicTypes
 -- AST stuff
 import Data.JSTarget as J
-import Data.JSTarget.AST (Exp (..), Stm (..), LHS (..), Lit (..))
+import Data.JSTarget.AST (Exp (..), Stm (..), LHS (..))
 -- General Haste stuff
 import Haste.Config
 import Haste.Monad
@@ -116,7 +116,7 @@
     _             -> mkCon tag args' stricts'
   where
     -- Always inline bools
-    mkCon l@(AST (Lit (LBool _)) _) _ _ = return l
+    mkCon l _ _ | isEnumerationDataCon con = return l
     mkCon tag as ss = return $ array (tag : zipWith evaluate as ss)
     evaluate arg True = eval arg
     evaluate arg _    = arg
@@ -267,18 +267,10 @@
     getTag s = index s (litN 0)
     cmp = case t of
       PrimAlt _ -> id
-      AlgAlt tc -> if tyConIsBoolean tc then id else getTag
+      AlgAlt tc -> if isEnumerationTyCon tc then id else getTag
       _         -> getTag
 
-    tyConIsBoolean tc =
-      case (n, m) of
-        ("Bool", "GHC.Types")  -> True
-        _                      -> False
-      where
-        n = occNameString $ nameOccName $ tyConName tc
-        m = moduleNameString $ moduleName $ nameModule $ tyConName tc
 
-
 -- | Split a list of StgAlts into (default, [rest]). Since all case expressions
 --   are total, if there is no explicit default branch, the last conditional
 --   branch is the default one.
@@ -400,14 +392,11 @@
 --   (constructor, field strictness annotations).
 genDataCon :: DataCon -> JSGen Config (AST Exp, [Bool])
 genDataCon dc = do
-  let tagexp = genDataConTag dc
-      tag    = astCode tagexp
-  case tag of
-    (Lit (LBool _)) ->
-      return (tagexp, [])
-    _ ->
-      return (tagexp, map strict (dataConRepStrictness dc))
+  if isEnumerationDataCon dc
+    then return (tagexp, [])
+    else return (tagexp, map strict (dataConRepStrictness dc))
   where
+    tagexp = genDataConTag dc
     strict MarkedStrict = True
     strict _            = False
 
@@ -423,7 +412,8 @@
   case (n, m) of
     ("True", "GHC.Types")  -> lit True
     ("False", "GHC.Types") -> lit False
-    _                      -> lit (fromIntegral $ dataConTag d :: Double)
+    _                      ->
+      lit (fromIntegral (dataConTag d - fIRST_TAG) :: Double)
 
 -- | Generate literals.
 genLit :: L.Literal -> JSGen Config (AST Exp)
@@ -463,6 +453,10 @@
       else return $ call arity f' xs'
   where
     arity = arityInfo $ idInfo f
+
+-- | Does this data constructor create an enumeration type?
+isEnumerationDataCon :: DataCon -> Bool
+isEnumerationDataCon = isEnumerationTyCon . dataConTyCon    
 
 -- | Returns True if the given Var is an unboxed tuple with a single element
 --   after any represenationless elements are discarded.
diff --git a/src/Haste/Config.hs b/src/Haste/Config.hs
--- a/src/Haste/Config.hs
+++ b/src/Haste/Config.hs
@@ -16,7 +16,7 @@
 stdJSLibs :: [FilePath]
 stdJSLibs = unsafePerformIO $ mapM getDataFileName [
     "rts.js", "stdlib.js", "MVar.js", "StableName.js", "Integer.js", "md5.js",
-    "array.js", "pointers.js"
+    "array.js", "pointers.js", "unicode.js"
   ]
 
 debugLib :: FilePath
diff --git a/src/Haste/PrimOps.hs b/src/Haste/PrimOps.hs
--- a/src/Haste/PrimOps.hs
+++ b/src/Haste/PrimOps.hs
@@ -210,6 +210,8 @@
     NewMutVarOp -> callF "nMV"
     ReadMutVarOp -> callF "rMV"
     WriteMutVarOp -> callF "wMV"
+    SameMutVarOp -> bOp Eq
+    AtomicModifyMutVarOp -> Right $ callSaturated (xs !! 1) [(xs !! 0)]
     
     -- TVars - since there's no parallelism and no preemption, TVars behave
     -- just like normal IORefs.
@@ -219,6 +221,7 @@
     SameTVarOp  -> bOp Eq
 
     -- Pointer ops
+    ReallyUnsafePtrEqualityOp -> bOp Eq
     WriteOffAddrOp_Char    -> writeOffAddr xs "i8"  1
     WriteOffAddrOp_Int     -> writeOffAddr xs "i32" 4
     WriteOffAddrOp_Int8    -> writeOffAddr xs "i8"  1
@@ -276,7 +279,7 @@
 
     -- Stable pointers - all pointers are stable in JS!
     MakeStablePtrOp   -> Right $ head xs
-    EqStablePtrOp     -> Right $ head xs
+    EqStablePtrOp     -> bOp Eq
     DeRefStablePtrOp  -> Right $ head xs
 
     -- Exception masking
@@ -286,10 +289,13 @@
     MaskStatus              -> Right $ litN 0
 
     -- Misc. ops
+    DelayOp        -> Right $ defState
     SeqOp          -> Right $ callForeign "E" [head xs]
     AtomicallyOp   -> Right $ callSaturated (xs !! 0) []
     -- Get the data constructor tag from a value.
     DataToTagOp    -> callF "dataToTag"
+    -- Basically unsafeCoerce :: Int# -> <enumeration type>
+    TagToEnumOp    -> Right $ head xs
     TouchOp        -> Right $ defState
     RaiseOp        -> callF "die"
     RaiseIOOp      -> callF "die"
diff --git a/src/Haste/Version.hs b/src/Haste/Version.hs
--- a/src/Haste/Version.hs
+++ b/src/Haste/Version.hs
@@ -10,7 +10,7 @@
 import Haste.Environment (hasteDir)
 
 hasteVersion :: Version
-hasteVersion = Version [0, 2, 1] []
+hasteVersion = Version [0, 2, 2] []
 
 ghcVersion :: String
 ghcVersion = cProjectVersion
