Vendor import of clang trunk r154661:

http://llvm.org/svn/llvm-project/cfe/trunk@r154661

1 files changed, 59 insertions, 0 deletions

diff --git a/test/CodeGen/alignment.c b/test/CodeGen/alignment.c
new file mode 100644
index 0000000..8882c91
--- /dev/null
+++ b/test/CodeGen/alignment.c
@@ -0,0 +1,59 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - | FileCheck %s
+
+__attribute((aligned(16))) float a[128];
+union {int a[4]; __attribute((aligned(16))) float b[4];} b;
+
+// CHECK: @a = {{.*}}zeroinitializer, align 16
+// CHECK: @b = {{.*}}zeroinitializer, align 16
+
+
+
+// PR5279 - Reduced alignment on typedef.
+typedef int myint __attribute__((aligned(1)));
+
+void test1(myint *p) {
+  *p = 0;
+}
+// CHECK: @test1(
+// CHECK: store i32 0, i32* {{.*}}, align 1
+// CHECK: ret void
+
+int test1a(myint *p) {
+  return *p;
+}
+// CHECK: @test1a(
+// CHECK: load i32* {{.*}}, align 1
+// CHECK: ret i32
+
+
+// PR5279 - Reduced alignment on typedef.
+typedef float __attribute__((vector_size(16), aligned(4))) packedfloat4;
+
+void test2(packedfloat4 *p) {
+  *p = (packedfloat4) { 3.2f, 2.3f, 0.1f, 0.0f };
+}
+// CHECK: @test2(
+// CHECK: store <4 x float> {{.*}}, align 4
+// CHECK: ret void
+
+
+// PR5279 - Reduced alignment on typedef.
+typedef float __attribute__((ext_vector_type(3), aligned(4))) packedfloat3;
+void test3(packedfloat3 *p) {
+  *p = (packedfloat3) { 3.2f, 2.3f, 0.1f };
+}
+// CHECK: @test3(
+// CHECK: store <3 x float> {{.*}}, align 4
+// CHECK: ret void
+
+
+
+typedef float __attribute__((vector_size(16), aligned(64))) float4align64;
+
+// rdar://10639962 - Typedef alignment lost in p[]-style dereferencing
+void test4(float4align64 *p) {
+  p[0] = (float4align64){ 3.2f, 2.3f, 0.1f, 0.0f };
+}
+// CHECK: @test4(
+// CHECK: store <4 x float> {{.*}}, <4 x float>* {{.*}}, align 64
+