AltiVec-style vector initializer syntax, vec4 a = (vec4)(a, b, c, d);

In addition to being defined by the AltiVec PIM, this is also the vector
initializer syntax used by OpenCL, so that vector literals are compatible
with macro arguments.

llvm-svn: 78535

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/Sema/altivec-init.c b/clang/test/Sema/altivec-init.c
new file mode 100644
index 00000000000..6185186903b
--- /dev/null
+++ b/clang/test/Sema/altivec-init.c
@@ -0,0 +1,16 @@
+// RUN: clang-cc %s -faltivec -verify -pedantic -fsyntax-only -fblocks=0
+
+typedef int v4 __attribute((vector_size(16)));
+typedef short v8 __attribute((vector_size(16)));
+
+v8 foo(void) { 
+  v8 a;
+  v4 b;
+  a = (v8){4, 2}; // expected-error {{too few elements in vector initialization (expected 8 elements, have 2)}}
+  b = (v4)(5, 6, 7, 8, 9); // expected-warning {{excess elements in vector initializer}}
+  b = (v4)(5, 6, 8, 8.0f);
+  return (v8){0, 1, 2, 3, 1, 2, 3, 4};
+
+  // FIXME: test that (type)(fn)(args) still works with -faltivec
+  // FIXME: test that c++ overloaded commas still work -faltivec
+}