diff --git a/alloy.py b/alloy.py
index 57d8df1e..b30b98ba 100755
--- a/alloy.py
+++ b/alloy.py
@@ -224,6 +224,7 @@ def build_LLVM(version_LLVM, revision, folder, tarball, debug, selfbuild, extra,
 
 def check_targets():
     answer = []
+    answer_generic = []
     answer_sde = []
     # check what native targets do we have
     if current_OS != "Windows":
@@ -244,7 +245,7 @@ def check_targets():
                 targets[j][2] = True
             break
     if current_OS != "Windows":
-        answer = answer + ["generic-4", "generic-16", "generic-8", "generic-1", "generic-32", "generic-64"]
+        answer_generic = ["generic-4", "generic-16", "generic-8", "generic-1", "generic-32", "generic-64"]
     # now check what targets we have with the help of SDE
     sde_exists = ""
     PATH_dir = string.split(os.getenv("PATH"), os.pathsep)
@@ -262,7 +263,7 @@ def check_targets():
         error("you haven't got sde neither in SDE_HOME nor in your PATH.\n" + 
             "To test all platforms please set SDE_HOME to path containing SDE.\n" +
             "Please refer to http://www.intel.com/software/sde for SDE download information.", 2)
-        return [answer, answer_sde]
+        return [answer, answer_generic, answer_sde]
     # here we have SDE
     f_lines = take_lines(sde_exists + " -help", "all")
     for i in range(0,len(f_lines)):
@@ -274,7 +275,7 @@ def check_targets():
             answer_sde = answer_sde + [["-ivb", "avx1.1-i32x8"], ["-ivb", "avx1.1-i32x16"], ["-ivb", "avx1.1-i64x4"]]
         if targets[0][2] == False and "hsw" in f_lines[i]:
             answer_sde = answer_sde + [["-hsw", "avx2-i32x8"], ["-hsw", "avx2-i32x16"], ["-hsw", "avx2-i64x4"]]
-    return [answer, answer_sde]
+    return [answer, answer_generic, answer_sde]
 
 def build_ispc(version_LLVM, make):
     current_path = os.getcwd()
@@ -378,7 +379,7 @@ def validation_run(only, only_targets, reference_branch, number, notify, update,
         stability.no_opt = False
         stability.wrapexe = ""
 # prepare parameters of run
-        [targets_t, sde_targets_t] = check_targets()
+        [targets_t, targets_generic_t, sde_targets_t] = check_targets()
         rebuild = True
         opts = []
         archs = []
@@ -416,6 +417,10 @@ def validation_run(only, only_targets, reference_branch, number, notify, update,
                     if i in targets_t[j]:
                         targets.append(targets_t[j])
                         err = False
+                for j in range(0,len(targets_generic_t)):
+                    if i in targets_generic_t[j]:
+                        targets.append(targets_generic_t[j])
+                        err = False
                 for j in range(0,len(sde_targets_t)):
                     if i in sde_targets_t[j][1]:
                         sde_targets.append(sde_targets_t[j])
@@ -423,7 +428,7 @@ def validation_run(only, only_targets, reference_branch, number, notify, update,
                 if err == True:
                     error("You haven't sde for target " + i, 1)
         else:
-            targets = targets_t[:-4]
+            targets = targets_t + targets_generic_t[:-4]
             sde_targets = sde_targets_t
         if "build" in only:
             targets = []
diff --git a/expr.cpp b/expr.cpp
index bfa14d22..f9da9782 100644
--- a/expr.cpp
+++ b/expr.cpp
@@ -6962,9 +6962,9 @@ TypeCastExpr::GetValue(FunctionEmitContext *ctx) const {
             return ctx->BitCastInst(v, ptype); //, "array_cast_0size");
         }
 
-        AssertPos(pos, Type::Equal(toTarget, fromTarget) ||
-               Type::Equal(toTarget, fromTarget->GetAsConstType()));
-        return expr->GetValue(ctx);
+        // Just bitcast it.  See Issue #721
+        llvm::Value *value = expr->GetValue(ctx);
+        return ctx->BitCastInst(value, toType->LLVMType(g->ctx), "refcast");
     }
 
     const StructType *toStruct = CastType<StructType>(toType);
@@ -7170,6 +7170,14 @@ TypeCastExpr::TypeCheck() {
         // allow explicit typecasts between any two different pointer types
         return this;
 
+    const ReferenceType *fromRef = CastType<ReferenceType>(fromType);
+    const ReferenceType *toRef = CastType<ReferenceType>(toType);
+    if (fromRef != NULL && toRef != NULL) {
+      // allow explicit typecasts between any two different reference types
+      // Issues #721
+      return this;
+    }
+    
     const AtomicType *fromAtomic = CastType<AtomicType>(fromType);
     const AtomicType *toAtomic = CastType<AtomicType>(toType);
     const EnumType *fromEnum = CastType<EnumType>(fromType);
diff --git a/fail_db.txt b/fail_db.txt
index ff119d5a..248a9cff 100644
--- a/fail_db.txt
+++ b/fail_db.txt
@@ -2,7 +2,7 @@
 % The list is unordered and contains information about commonly used platforms / configurations.
 % Our goas is to maintain this list for Linux, MacOS and Windows with reasonably new compilers.
 % Note, that it's important which C++ compiler was used. The currently supported C++ compilers are
-% clang 3.3 on Linux and MacOS and cl (VS2010) on Windows.
+% clang 3.4 on Linux and clang 3.3 on MacOS and cl (VS2010) on Windows.
 % Please also note that it's very important to have correctly built LLVM. There are a number of
 % LLVM bugs in released versions, that we have to workaround by applying patches (see llvm_patches
 % folder). The recommended way to build LLVM on Unix is to use "alloy.py".
@@ -275,18 +275,6 @@
 .\tests\uint64-min-1.ispc runfail     x86     avx1-i64x4 Windows LLVM 3.3         cl -O2 *
 .\tests\uint64-min.ispc runfail     x86     avx1-i64x4 Windows LLVM 3.3         cl -O2 *
 .\tests\reduce-min-uint64.ispc runfail     x86     avx1-i64x4 Windows LLVM 3.4         cl -O2 *
-./tests/atomics-13.ispc compfail     x86     sse4-i16x8   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/atomics-13.ispc compfail  x86-64     sse4-i16x8   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/atomics-13.ispc compfail     x86     sse4-i8x16   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/atomics-13.ispc compfail  x86-64     sse4-i8x16   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O2 *
-./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O2 *
-./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O2 *
-./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O2 *
-./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O2 *
 ./tests/atomics-13.ispc compfail     x86     sse4-i16x8     Mac LLVM 3.3 clang++3.3 -O2 *
 ./tests/atomics-13.ispc compfail  x86-64     sse4-i16x8     Mac LLVM 3.3 clang++3.3 -O2 *
 ./tests/funcptr-null-4.ispc runfail     x86     sse4-i8x16     Mac LLVM 3.3 clang++3.3 -O2 *
@@ -444,190 +432,228 @@
 .\tests\switch-8.ispc compfail  x86-64    avx2-i32x16 Windows LLVM 3.4         cl -O2 *
 .\tests\switch-9.ispc compfail  x86-64    avx2-i32x16 Windows LLVM 3.4         cl -O2 *
 .\tests\reduce-equal-10.ispc runfail     x86     sse4-i8x16 Windows LLVM 3.3         cl -O2 *
-./tests/half-1.ispc runfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/ptr-15.ispc runfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-11.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-14.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-and-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-and-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-or-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/half-1.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/ptr-15.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/ptr-19.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-11.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-14.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/atomics-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-add-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-and-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-and-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/exclusive-scan-or-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-5.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-6.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/reduce-equal-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.3 -O0 *
-./tests/half-1.ispc runfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/ptr-15.ispc runfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-11.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-14.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-and-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-and-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-or-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/half-1.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/ptr-15.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/ptr-19.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-11.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-14.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/atomics-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-add-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-and-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-and-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/exclusive-scan-or-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-5.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-6.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/reduce-equal-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.3 -O0 *
-./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O2 *
-./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O2 *
-./tests/half-1.ispc runfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/ptr-15.ispc runfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-11.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-14.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-and-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-and-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-or-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O2 *
-./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O2 *
-./tests/half-1.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/ptr-15.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/ptr-19.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-11.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-14.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/atomics-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-add-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-and-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-and-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/exclusive-scan-or-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-5.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-6.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
-./tests/reduce-equal-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.3 -O0 *
+./tests/atomics-13.ispc compfail     x86     sse4-i16x8   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/atomics-13.ispc compfail  x86-64     sse4-i16x8   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/atomics-13.ispc compfail     x86     sse4-i8x16   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/atomics-13.ispc compfail  x86-64     sse4-i8x16   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/masked-scatter-struct.ispc runfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/exclusive-scan-add-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/exclusive-scan-add-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/exclusive-scan-add-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/exclusive-scan-add-7.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/half-1.ispc runfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/ptr-15.ispc runfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-11.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-14.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-and-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-and-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-or-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O2 *
+./tests/half-1.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/ptr-15.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/ptr-19.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-11.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-14.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/atomics-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-add-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-and-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-and-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/exclusive-scan-or-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-5.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-6.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/reduce-equal-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.3 clang++3.4 -O0 *
+./tests/masked-scatter-struct.ispc runfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/exclusive-scan-add-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/exclusive-scan-add-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/exclusive-scan-add-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/exclusive-scan-add-7.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/half-1.ispc runfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/ptr-15.ispc runfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-11.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-14.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-and-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-and-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-or-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O2 *
+./tests/half-1.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/ptr-15.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/ptr-19.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-11.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-14.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/atomics-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-add-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-and-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-and-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/exclusive-scan-or-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-5.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-6.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.4 clang++3.4 -O0 *
+./tests/reduce-equal.ispc compfail  x86-64     avx1-i32x4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/shuffle2-7.ispc compfail  x86-64     avx1-i64x4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/masked-scatter-struct.ispc runfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/exclusive-scan-add-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/exclusive-scan-add-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/exclusive-scan-add-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/exclusive-scan-add-7.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/half-1.ispc runfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/ptr-15.ispc runfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-11.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-14.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-9.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-and-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-and-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-or-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-1.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-10.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-12.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-13.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-2.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-3.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-4.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-5.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-6.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/short-vec-8.ispc compfail  x86-64      generic-4   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/ptr-assign-lhs-math-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/half-1.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/ptr-15.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/ptr-19.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/test-143.ispc runfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-11.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-14.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/atomics-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-add-9.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-and-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-and-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/exclusive-scan-or-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-1.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-10.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-12.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-13.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-2.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-3.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-4.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-5.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-6.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/reduce-equal-8.ispc compfail  x86-64     generic-16   Linux LLVM 3.5 clang++3.4 -O0 *
+./tests/foreach-double-1.ispc runfail     x86     avx2-i32x8   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/foreach-double-1.ispc runfail     x86    avx2-i32x16   Linux LLVM 3.5 clang++3.4 -O2 *
+./tests/foreach-double-1.ispc runfail     x86     avx2-i64x4   Linux LLVM 3.5 clang++3.4 -O2 *
diff --git a/func.cpp b/func.cpp
index b6fcdb4e..578dd68a 100644
--- a/func.cpp
+++ b/func.cpp
@@ -242,7 +242,7 @@ Function::emitCode(FunctionEmitContext *ctx, llvm::Function *function,
     const FunctionType *type = CastType<FunctionType>(sym->type);
     Assert(type != NULL);
     if (type->isTask == true && g->target->getISA() != Target::NVPTX)  {
-        // For tasks, we there should always be three parmeters: the
+        // For tasks, there should always be three parameters: the
         // pointer to the structure that holds all of the arguments, the
         // thread index, and the thread count variables.
         llvm::Function::arg_iterator argIter = function->arg_begin();
diff --git a/run_tests.py b/run_tests.py
index 0d4ed194..ec7212d3 100755
--- a/run_tests.py
+++ b/run_tests.py
@@ -324,6 +324,8 @@ def run_tasks_from_queue(queue, queue_ret, queue_skip, total_tests_arg, max_test
 
     if is_windows:
         tmpdir = "tmp%d" % os.getpid()
+        while os.access(tmpdir, os.F_OK):
+            tmpdir = "%sx" % tmpdir
         os.mkdir(tmpdir)
         os.chdir(tmpdir)
     else: