1*f4a2713aSLionel Sambuc// RUN: %clang_cc1 %s -emit-llvm -O0 -o - | FileCheck %s 2*f4a2713aSLionel Sambuc 3*f4a2713aSLionel Sambuctypedef char char3 __attribute((ext_vector_type(3)));; 4*f4a2713aSLionel Sambuc 5*f4a2713aSLionel Sambuc// Check for optimized vec3 load/store which treats vec3 as vec4. 6*f4a2713aSLionel Sambucvoid foo(char3 *P, char3 *Q) { 7*f4a2713aSLionel Sambuc *P = *Q; 8*f4a2713aSLionel Sambuc // CHECK: %{{.*}} = shufflevector <4 x i8> %{{.*}}, <4 x i8> undef, <3 x i32> <i32 0, i32 1, i32 2> 9*f4a2713aSLionel Sambuc} 10