diff --git a/test/loopvectorize.c b/test/loopvectorize.c
new file mode 100644
index 0000000..a46b633
--- /dev/null
+++ b/test/loopvectorize.c
@@ -0,0 +1,44 @@
+void ex1(float *A, float* B, float K, int start, int end) {
+    for (int i = start; i < end; ++i)
+        A[i] *= B[i] + K;
+}
+
+void ex2(float *A, float* B, float K, int n) {
+    for (int i = 0; i < n; ++i)
+        A[i] *= B[i] + K;
+}
+
+int ex3(int *A, int *B, int n) {
+    unsigned sum = 0;
+    for (int i = 0; i < n; ++i)
+        sum += A[i] + 5;
+    return sum;
+}
+
+void ex4(float *A, float* B, float K, int n) {
+    for (int i = 0; i < n; ++i)
+        A[i] = i;
+}
+
+int ex5(int *A, int *B, int n) {
+    unsigned sum = 0;
+    for (int i = 0; i < n; ++i)
+        if (A[i] > B[i])
+            sum += A[i] + 5;
+    return sum;
+}
+
+void ex6(int *A, int *B, int n) {
+    for (int i = n; i > 0; --i)
+        A[i] +=1;
+}
+
+void ex7(int *A, int *B, int n, int k) {
+    for (int i = 0; i < n; ++i)
+        A[i*7] += B[i*k];
+}
+
+void ex8(int *A, char *B, int n, int k) {
+    for (int i = 0; i < n; ++i)
+        A[i] += 4 * B[i];
+}
\ No newline at end of file
diff --git a/test/loopvectorize.ll b/test/loopvectorize.ll
new file mode 100644
index 0000000..8d651ca
--- /dev/null
+++ b/test/loopvectorize.ll
@@ -0,0 +1,369 @@
+; ModuleID = 'loopvectorize.c'
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+;target triple = "x86_64-apple-macosx10.8.0"
+target triple = "x86-64-unknown-linux-gnu"
+
+define void @ex1(float* %A, float* %B, float %K, i32 %start, i32 %end) nounwind uwtable ssp {
+  %1 = alloca float*, align 8
+  %2 = alloca float*, align 8
+  %3 = alloca float, align 4
+  %4 = alloca i32, align 4
+  %5 = alloca i32, align 4
+  %i = alloca i32, align 4
+  store float* %A, float** %1, align 8
+  store float* %B, float** %2, align 8
+  store float %K, float* %3, align 4
+  store i32 %start, i32* %4, align 4
+  store i32 %end, i32* %5, align 4
+  %6 = load i32* %4, align 4
+  store i32 %6, i32* %i, align 4
+  br label %7
+
+; <label>:7                                       ; preds = %25, %0
+  %8 = load i32* %i, align 4
+  %9 = load i32* %5, align 4
+  %10 = icmp slt i32 %8, %9
+  br i1 %10, label %11, label %28
+
+; <label>:11                                      ; preds = %7
+  %12 = load i32* %i, align 4
+  %13 = sext i32 %12 to i64
+  %14 = load float** %2, align 8
+  %15 = getelementptr inbounds float* %14, i64 %13
+  %16 = load float* %15, align 4
+  %17 = load float* %3, align 4
+  %18 = fadd float %16, %17
+  %19 = load i32* %i, align 4
+  %20 = sext i32 %19 to i64
+  %21 = load float** %1, align 8
+  %22 = getelementptr inbounds float* %21, i64 %20
+  %23 = load float* %22, align 4
+  %24 = fmul float %23, %18
+  store float %24, float* %22, align 4
+  br label %25
+
+; <label>:25                                      ; preds = %11
+  %26 = load i32* %i, align 4
+  %27 = add nsw i32 %26, 1
+  store i32 %27, i32* %i, align 4
+  br label %7
+
+; <label>:28                                      ; preds = %7
+  ret void
+}
+
+define void @ex2(float* %A, float* %B, float %K, i32 %n) nounwind uwtable ssp {
+  %1 = alloca float*, align 8
+  %2 = alloca float*, align 8
+  %3 = alloca float, align 4
+  %4 = alloca i32, align 4
+  %i = alloca i32, align 4
+  store float* %A, float** %1, align 8
+  store float* %B, float** %2, align 8
+  store float %K, float* %3, align 4
+  store i32 %n, i32* %4, align 4
+  store i32 0, i32* %i, align 4
+  br label %5
+
+; <label>:5                                       ; preds = %23, %0
+  %6 = load i32* %i, align 4
+  %7 = load i32* %4, align 4
+  %8 = icmp slt i32 %6, %7
+  br i1 %8, label %9, label %26
+
+; <label>:9                                       ; preds = %5
+  %10 = load i32* %i, align 4
+  %11 = sext i32 %10 to i64
+  %12 = load float** %2, align 8
+  %13 = getelementptr inbounds float* %12, i64 %11
+  %14 = load float* %13, align 4
+  %15 = load float* %3, align 4
+  %16 = fadd float %14, %15
+  %17 = load i32* %i, align 4
+  %18 = sext i32 %17 to i64
+  %19 = load float** %1, align 8
+  %20 = getelementptr inbounds float* %19, i64 %18
+  %21 = load float* %20, align 4
+  %22 = fmul float %21, %16
+  store float %22, float* %20, align 4
+  br label %23
+
+; <label>:23                                      ; preds = %9
+  %24 = load i32* %i, align 4
+  %25 = add nsw i32 %24, 1
+  store i32 %25, i32* %i, align 4
+  br label %5
+
+; <label>:26                                      ; preds = %5
+  ret void
+}
+
+define i32 @ex3(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
+  %1 = alloca i32*, align 8
+  %2 = alloca i32*, align 8
+  %3 = alloca i32, align 4
+  %sum = alloca i32, align 4
+  %i = alloca i32, align 4
+  store i32* %A, i32** %1, align 8
+  store i32* %B, i32** %2, align 8
+  store i32 %n, i32* %3, align 4
+  store i32 0, i32* %sum, align 4
+  store i32 0, i32* %i, align 4
+  br label %4
+
+; <label>:4                                       ; preds = %17, %0
+  %5 = load i32* %i, align 4
+  %6 = load i32* %3, align 4
+  %7 = icmp slt i32 %5, %6
+  br i1 %7, label %8, label %20
+
+; <label>:8                                       ; preds = %4
+  %9 = load i32* %i, align 4
+  %10 = sext i32 %9 to i64
+  %11 = load i32** %1, align 8
+  %12 = getelementptr inbounds i32* %11, i64 %10
+  %13 = load i32* %12, align 4
+  %14 = add nsw i32 %13, 5
+  %15 = load i32* %sum, align 4
+  %16 = add i32 %15, %14
+  store i32 %16, i32* %sum, align 4
+  br label %17
+
+; <label>:17                                      ; preds = %8
+  %18 = load i32* %i, align 4
+  %19 = add nsw i32 %18, 1
+  store i32 %19, i32* %i, align 4
+  br label %4
+
+; <label>:20                                      ; preds = %4
+  %21 = load i32* %sum, align 4
+  ret i32 %21
+}
+
+define void @ex4(float* %A, float* %B, float %K, i32 %n) nounwind uwtable ssp {
+  %1 = alloca float*, align 8
+  %2 = alloca float*, align 8
+  %3 = alloca float, align 4
+  %4 = alloca i32, align 4
+  %i = alloca i32, align 4
+  store float* %A, float** %1, align 8
+  store float* %B, float** %2, align 8
+  store float %K, float* %3, align 4
+  store i32 %n, i32* %4, align 4
+  store i32 0, i32* %i, align 4
+  br label %5
+
+; <label>:5                                       ; preds = %16, %0
+  %6 = load i32* %i, align 4
+  %7 = load i32* %4, align 4
+  %8 = icmp slt i32 %6, %7
+  br i1 %8, label %9, label %19
+
+; <label>:9                                       ; preds = %5
+  %10 = load i32* %i, align 4
+  %11 = sitofp i32 %10 to float
+  %12 = load i32* %i, align 4
+  %13 = sext i32 %12 to i64
+  %14 = load float** %1, align 8
+  %15 = getelementptr inbounds float* %14, i64 %13
+  store float %11, float* %15, align 4
+  br label %16
+
+; <label>:16                                      ; preds = %9
+  %17 = load i32* %i, align 4
+  %18 = add nsw i32 %17, 1
+  store i32 %18, i32* %i, align 4
+  br label %5
+
+; <label>:19                                      ; preds = %5
+  ret void
+}
+
+define i32 @ex5(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
+  %1 = alloca i32*, align 8
+  %2 = alloca i32*, align 8
+  %3 = alloca i32, align 4
+  %sum = alloca i32, align 4
+  %i = alloca i32, align 4
+  store i32* %A, i32** %1, align 8
+  store i32* %B, i32** %2, align 8
+  store i32 %n, i32* %3, align 4
+  store i32 0, i32* %sum, align 4
+  store i32 0, i32* %i, align 4
+  br label %4
+
+; <label>:4                                       ; preds = %30, %0
+  %5 = load i32* %i, align 4
+  %6 = load i32* %3, align 4
+  %7 = icmp slt i32 %5, %6
+  br i1 %7, label %8, label %33
+
+; <label>:8                                       ; preds = %4
+  %9 = load i32* %i, align 4
+  %10 = sext i32 %9 to i64
+  %11 = load i32** %1, align 8
+  %12 = getelementptr inbounds i32* %11, i64 %10
+  %13 = load i32* %12, align 4
+  %14 = load i32* %i, align 4
+  %15 = sext i32 %14 to i64
+  %16 = load i32** %2, align 8
+  %17 = getelementptr inbounds i32* %16, i64 %15
+  %18 = load i32* %17, align 4
+  %19 = icmp sgt i32 %13, %18
+  br i1 %19, label %20, label %29
+
+; <label>:20                                      ; preds = %8
+  %21 = load i32* %i, align 4
+  %22 = sext i32 %21 to i64
+  %23 = load i32** %1, align 8
+  %24 = getelementptr inbounds i32* %23, i64 %22
+  %25 = load i32* %24, align 4
+  %26 = add nsw i32 %25, 5
+  %27 = load i32* %sum, align 4
+  %28 = add i32 %27, %26
+  store i32 %28, i32* %sum, align 4
+  br label %29
+
+; <label>:29                                      ; preds = %20, %8
+  br label %30
+
+; <label>:30                                      ; preds = %29
+  %31 = load i32* %i, align 4
+  %32 = add nsw i32 %31, 1
+  store i32 %32, i32* %i, align 4
+  br label %4
+
+; <label>:33                                      ; preds = %4
+  %34 = load i32* %sum, align 4
+  ret i32 %34
+}
+
+define void @ex6(i32* %A, i32* %B, i32 %n) nounwind uwtable ssp {
+  %1 = alloca i32*, align 8
+  %2 = alloca i32*, align 8
+  %3 = alloca i32, align 4
+  %i = alloca i32, align 4
+  store i32* %A, i32** %1, align 8
+  store i32* %B, i32** %2, align 8
+  store i32 %n, i32* %3, align 4
+  %4 = load i32* %3, align 4
+  store i32 %4, i32* %i, align 4
+  br label %5
+
+; <label>:5                                       ; preds = %15, %0
+  %6 = load i32* %i, align 4
+  %7 = icmp sgt i32 %6, 0
+  br i1 %7, label %8, label %18
+
+; <label>:8                                       ; preds = %5
+  %9 = load i32* %i, align 4
+  %10 = sext i32 %9 to i64
+  %11 = load i32** %1, align 8
+  %12 = getelementptr inbounds i32* %11, i64 %10
+  %13 = load i32* %12, align 4
+  %14 = add nsw i32 %13, 1
+  store i32 %14, i32* %12, align 4
+  br label %15
+
+; <label>:15                                      ; preds = %8
+  %16 = load i32* %i, align 4
+  %17 = add nsw i32 %16, -1
+  store i32 %17, i32* %i, align 4
+  br label %5
+
+; <label>:18                                      ; preds = %5
+  ret void
+}
+
+define void @ex7(i32* %A, i32* %B, i32 %n, i32 %k) nounwind uwtable ssp {
+  %1 = alloca i32*, align 8
+  %2 = alloca i32*, align 8
+  %3 = alloca i32, align 4
+  %4 = alloca i32, align 4
+  %i = alloca i32, align 4
+  store i32* %A, i32** %1, align 8
+  store i32* %B, i32** %2, align 8
+  store i32 %n, i32* %3, align 4
+  store i32 %k, i32* %4, align 4
+  store i32 0, i32* %i, align 4
+  br label %5
+
+; <label>:5                                       ; preds = %24, %0
+  %6 = load i32* %i, align 4
+  %7 = load i32* %3, align 4
+  %8 = icmp slt i32 %6, %7
+  br i1 %8, label %9, label %27
+
+; <label>:9                                       ; preds = %5
+  %10 = load i32* %i, align 4
+  %11 = load i32* %4, align 4
+  %12 = mul nsw i32 %10, %11
+  %13 = sext i32 %12 to i64
+  %14 = load i32** %2, align 8
+  %15 = getelementptr inbounds i32* %14, i64 %13
+  %16 = load i32* %15, align 4
+  %17 = load i32* %i, align 4
+  %18 = mul nsw i32 %17, 7
+  %19 = sext i32 %18 to i64
+  %20 = load i32** %1, align 8
+  %21 = getelementptr inbounds i32* %20, i64 %19
+  %22 = load i32* %21, align 4
+  %23 = add nsw i32 %22, %16
+  store i32 %23, i32* %21, align 4
+  br label %24
+
+; <label>:24                                      ; preds = %9
+  %25 = load i32* %i, align 4
+  %26 = add nsw i32 %25, 1
+  store i32 %26, i32* %i, align 4
+  br label %5
+
+; <label>:27                                      ; preds = %5
+  ret void
+}
+
+define void @ex8(i32* %A, i8* %B, i32 %n, i32 %k) nounwind uwtable ssp {
+  %1 = alloca i32*, align 8
+  %2 = alloca i8*, align 8
+  %3 = alloca i32, align 4
+  %4 = alloca i32, align 4
+  %i = alloca i32, align 4
+  store i32* %A, i32** %1, align 8
+  store i8* %B, i8** %2, align 8
+  store i32 %n, i32* %3, align 4
+  store i32 %k, i32* %4, align 4
+  store i32 0, i32* %i, align 4
+  br label %5
+
+; <label>:5                                       ; preds = %23, %0
+  %6 = load i32* %i, align 4
+  %7 = load i32* %3, align 4
+  %8 = icmp slt i32 %6, %7
+  br i1 %8, label %9, label %26
+
+; <label>:9                                       ; preds = %5
+  %10 = load i32* %i, align 4
+  %11 = sext i32 %10 to i64
+  %12 = load i8** %2, align 8
+  %13 = getelementptr inbounds i8* %12, i64 %11
+  %14 = load i8* %13, align 1
+  %15 = sext i8 %14 to i32
+  %16 = mul nsw i32 4, %15
+  %17 = load i32* %i, align 4
+  %18 = sext i32 %17 to i64
+  %19 = load i32** %1, align 8
+  %20 = getelementptr inbounds i32* %19, i64 %18
+  %21 = load i32* %20, align 4
+  %22 = add nsw i32 %21, %16
+  store i32 %22, i32* %20, align 4
+  br label %23
+
+; <label>:23                                      ; preds = %9
+  %24 = load i32* %i, align 4
+  %25 = add nsw i32 %24, 1
+  store i32 %25, i32* %i, align 4
+  br label %5
+
+; <label>:26                                      ; preds = %5
+  ret void
+}
diff --git a/test/loopvectorize.py b/test/loopvectorize.py
new file mode 100644
index 0000000..27db483
--- /dev/null
+++ b/test/loopvectorize.py
@@ -0,0 +1,38 @@
+from llvm.core import *
+from llvm.passes import *
+from llvm.ee import *
+from os.path import dirname, join as join_path
+
+import unittest
+import re
+
+class TestLoopVectorizer(unittest.TestCase):
+    def test_loop_vectorizer(self):
+
+        re_vector = re.compile("<\d+ x \w+>")
+
+        tm = TargetMachine.new(opt=3)
+
+        # Build passes
+        pm = build_pass_managers(tm, opt=3, loop_vectorize=True, fpm=False).pm
+
+        # Load test module
+        asmfile = join_path(dirname(__file__), 'loopvectorize.ll')
+        with open(asmfile) as asm:
+            mod = Module.from_assembly(asm)
+
+        before = str(mod)
+
+        pm.run(mod)
+
+        after = str(mod)
+        self.assertNotEqual(after, before)
+
+        before_vectors = re_vector.findall(before)
+        self.assertFalse(before_vectors)
+        after_vectors = re_vector.findall(after)
+        self.assertLess(len(before_vectors), len(after_vectors))
+
+
+if __name__ == '__main__':
+    unittest.main()
\ No newline at end of file
diff --git a/test/pass.py b/test/pass.py
new file mode 100644
index 0000000..c9ea654
--- /dev/null
+++ b/test/pass.py
@@ -0,0 +1,45 @@
+from llvm.core import *
+from llvm.passes import *
+from llvm.ee import *
+import unittest
+
+class TestPass(unittest.TestCase):
+    def test_execerise_pass_api(self):
+        # Test passes
+        ps = Pass.new(PASS_DOT_DOM_ONLY)
+        self.assertEqual(PASS_DOT_DOM_ONLY, ps.name)
+        self.assertTrue(len(ps.description))
+
+        ps = Pass.new(PASS_INLINE)
+        self.assertEqual(PASS_INLINE, ps.name)
+        self.assertTrue(len(ps.description))
+
+        # Test target specific passes
+        pm = PassManager.new()
+        pm.add(ps)
+        pm.add(TargetData.new("e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"))
+
+        tm = TargetMachine.new()
+
+        tli = TargetLibraryInfo.new(tm.triple)
+        self.assertFalse(tli.name)
+        self.assertTrue(tli.description)
+        pm.add(tli)
+
+        tti = TargetTransformInfo.new(tm)
+        self.assertFalse(tti.name)
+        self.assertTrue(tti.description)
+
+        pm.add(tti)
+
+        pmb = PassManagerBuilder.new()
+        pmb.opt_level = 3
+        pmb.loop_vectorize = True
+
+        pmb.populate(pm)
+
+
+
+if __name__ == '__main__':
+    unittest.main()
+