Bug 975636 - Fix parallel bitop VM functions. (r=nmatsakis)

js/src/jit-test/tests/parallel/bug975636.js

@@ -0,0 +1,7 @@
+load(libdir + "parallelarray-helpers.js");
+if (getBuildConfiguration().parallelJS) {
+  function f(x) { return [] << 0; }
+  var a = Array.buildPar(9, f);
+  var b = Array.build(9, f);
+  assertEqArray(a, b);
+}

js/src/jit/ParallelFunctions.cpp

@@ -497,7 +497,7 @@ jit::BitNotPar(ForkJoinContext *cx, HandleValue in, int32_t *out)
     JS_BEGIN_MACRO                                                      \
     int32_t left, right;                                                \
     if (lhs.isObject() || rhs.isObject())                               \
-        return TP_RETRY_SEQUENTIALLY;                                   \
+        return false;                                                   \
     if (!NonObjectToInt32(cx, lhs, &left) ||                            \
         !NonObjectToInt32(cx, rhs, &right))                             \
     {                                                                   \
@@ -528,7 +528,7 @@ jit::BitAndPar(ForkJoinContext *cx, HandleValue lhs, HandleValue rhs, int32_t *o
 bool
 jit::BitLshPar(ForkJoinContext *cx, HandleValue lhs, HandleValue rhs, int32_t *out)
 {
-    BIT_OP(left << (right & 31));
+    BIT_OP(uint32_t(left) << (right & 31));
 }
 
 bool