Add vector add/sub/mul/div by scalar tests (PR27085)

Ensure the scalar is correctly splatted to all lanes

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@324818 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/vector-scalar.c b/test/CodeGen/vector-scalar.c
new file mode 100644 (file)
index 0000000..0c973cd
--- /dev/null
+++ b/test/CodeGen/vector-scalar.c
@@ -0,0 +1,42 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
+
+// PR27085
+
+typedef unsigned char uchar4  __attribute__ ((vector_size (4)));
+
+// CHECK: @add2
+// CHECK: add <4 x i8> {{.*}}, <i8 2, i8 2, i8 2, i8 2>
+uchar4 add2(uchar4 v)
+{
+  return v + 2;
+}
+
+// CHECK: @sub2
+// CHECK: sub <4 x i8> {{.*}}, <i8 2, i8 2, i8 2, i8 2>
+uchar4 sub2(uchar4 v)
+{
+  return v - 2;
+}
+
+// CHECK: @mul2
+// CHECK: mul <4 x i8> {{.*}}, <i8 2, i8 2, i8 2, i8 2>
+uchar4 mul2(uchar4 v)
+{
+  return v * 2;
+}
+
+// CHECK: @div2
+// CHECK: udiv <4 x i8> {{.*}}, <i8 2, i8 2, i8 2, i8 2>
+uchar4 div2(uchar4 v)
+{
+  return v / 2;
+}
+
+typedef __attribute__(( ext_vector_type(4) )) unsigned char uchar4_ext;
+
+// CHECK: @div3_ext
+// CHECK: udiv <4 x i8> %{{.*}}, <i8 3, i8 3, i8 3, i8 3>
+uchar4_ext div3_ext(uchar4_ext v)
+{
+  return v / 3;
+}