1 files changed, 61 insertions, 0 deletions
diff --git a/test/CodeGen/x86-vector-width.c b/test/CodeGen/x86-vector-width.c
new file mode 100644
index 000000000000..7e03fedb7846
--- /dev/null
+++ b/test/CodeGen/x86-vector-width.c
@@ -0,0 +1,61 @@
+// RUN: %clang_cc1 -triple i686-linux-gnu -target-cpu i686 -emit-llvm %s -o - | FileCheck %s
+
+typedef signed long long V2LLi __attribute__((vector_size(16)));
+typedef signed long long V4LLi __attribute__((vector_size(32)));
+
+V2LLi ret_128();
+V4LLi ret_256();
+void arg_128(V2LLi);
+void arg_256(V4LLi);
+
+// Make sure return type forces a min-legal-width
+V2LLi foo(void) {
+  return (V2LLi){ 0, 0 };
+}
+
+V4LLi goo(void) {
+  return (V4LLi){ 0, 0 };
+}
+
+// Make sure return type of called function forces a min-legal-width
+void hoo(void) {
+  V2LLi tmp_V2LLi;
+  tmp_V2LLi = ret_128();
+}
+
+void joo(void) {
+  V4LLi tmp_V4LLi;
+  tmp_V4LLi = ret_256();
+}
+
+// Make sure arg type of called function forces a min-legal-width
+void koo(void) {
+  V2LLi tmp_V2LLi;
+  arg_128(tmp_V2LLi);
+}
+
+void loo(void) {
+  V4LLi tmp_V4LLi;
+  arg_256(tmp_V4LLi);
+}
+
+// Make sure arg type of our function forces a min-legal-width
+void moo(V2LLi x) {
+
+}
+
+void noo(V4LLi x) {
+
+}
+
+// CHECK: {{.*}}@foo{{.*}} #0
+// CHECK: {{.*}}@goo{{.*}} #1
+// CHECK: {{.*}}@hoo{{.*}} #0
+// CHECK: {{.*}}@joo{{.*}} #1
+// CHECK: {{.*}}@koo{{.*}} #0
+// CHECK: {{.*}}@loo{{.*}} #1
+// CHECK: {{.*}}@moo{{.*}} #0
+// CHECK: {{.*}}@noo{{.*}} #1
+
+// CHECK: #0 = {{.*}}"min-legal-vector-width"="128"
+// CHECK: #1 = {{.*}}"min-legal-vector-width"="256"