clang/test/CodeGenOpenCL/vectorLoadStore.cl

   1 // RUN: %clang_cc1 -cl-std=CL2.0 -triple "spir-unknown-unknown" %s -emit-llvm -O0 -o - | FileCheck %s
   2
   3 typedef char char2 __attribute((ext_vector_type(2)));
   4 typedef char char3 __attribute((ext_vector_type(3)));
   5 typedef char char8 __attribute((ext_vector_type(8)));
   6 typedef float float4 __attribute((ext_vector_type(4)));
   7
   8 // Check for optimized vec3 load/store which treats vec3 as vec4.
   9 void foo(char3 *P, char3 *Q) {
  10   *P = *Q;
  11   // CHECK: %{{.*}} = shufflevector <4 x i8> %{{.*}}, <4 x i8> poison, <3 x i32> <i32 0, i32 1, i32 2>
  12 }
  13
  14 // CHECK: define{{.*}} spir_func void @alignment()
  15 void alignment() {
  16   __private char2 data_generic[100];
  17   __private char8 data_private[100];
  18
  19   // CHECK: %{{.*}} = load <4 x float>, ptr addrspace(4) %{{.*}}, align 2
  20   // CHECK: store <4 x float> %{{.*}}, ptr %{{.*}}, align 8
  21   ((private float4 *)data_private)[1] = ((float4 *)data_generic)[2];
  22 }