typedef float vFloat __attribute__ ((__vector_size__ (16))); typedef vFloat vfloat; void foo() { vfloat mult_[4] = { { 1.0f, 1.0f, 1.0f, 1.0f }, { 2.0f, 2.0f, 2.0f, 2.0f }, { 3.0f, 3.0f, 3.0f, 3.0f }, { 4.0f, 4.0f, 4.0f, 4.0f } }; }