PNaCl SIMD: allow element-aligned vector load/store

test/Transforms/NaCl/replace-ptrs-with-ints.ll

Index: test/Transforms/NaCl/replace-ptrs-with-ints.ll
diff --git a/test/Transforms/NaCl/replace-ptrs-with-ints.ll b/test/Transforms/NaCl/replace-ptrs-with-ints.ll
index 8a67ea8f1361b50f894d8a3d7e827261ae57a2fd..15c1e50e98e1ffa8d0560fbeb2f25c61faf5bfcb 100644
--- a/test/Transforms/NaCl/replace-ptrs-with-ints.ll
+++ b/test/Transforms/NaCl/replace-ptrs-with-ints.ll
@@ -345,6 +345,7 @@ define i16 @load_global_bitcast() {
 
 
 declare void @receive_alloca(%struct* %ptr)
+declare void @receive_vector_alloca(<4 x i32>* %ptr)
 
 define void @alloca_fixed() {
   %buf = alloca %struct, align 128
@@ -368,6 +369,16 @@ define void @alloca_fixed_array() {
 ; CHECK-NEXT: %buf.asint = ptrtoint i8* %buf to i32
 ; CHECK-NEXT: call void @receive_alloca(i32 %buf.asint)
 
+define void @alloca_fixed_vector() {
+  %buf = alloca <4 x i32>, align 128
+  call void @receive_vector_alloca(<4 x i32>* %buf)
+  ret void
+}
+; CHECK: define void @alloca_fixed_vector() {
+; CHECK-NEXT: %buf = alloca i8, i32 16, align 128
+; CHECK-NEXT: %buf.asint = ptrtoint i8* %buf to i32
+; CHECK-NEXT: call void @receive_vector_alloca(i32 %buf.asint)
+
 define void @alloca_variable(i32 %size) {
   %buf = alloca %struct, i32 %size
   call void @receive_alloca(%struct* %buf)
@@ -393,6 +404,13 @@ define void @alloca_alignment_double() {
 ; CHECK: void @alloca_alignment_double() {
 ; CHECK-NEXT: alloca i8, i32 8, align 8
 
+define void @alloca_alignment_vector() {
+  %buf = alloca <4 x i32>
+  ret void
+}
+; CHECK: void @alloca_alignment_vector() {
+; CHECK-NEXT: alloca i8, i32 16, align 16
+
 define void @alloca_lower_alignment() {
   %buf = alloca i32, align 1
   ret void