clang/test/Sema/neon-vector-types.c

   1 // RUN: %clang_cc1 %s -triple armv7 -target-feature +neon -fsyntax-only -verify
   2 // RUN: %clang_cc1 %s -triple armv8 -target-feature +neon -fsyntax-only -verify
   3
   4 typedef float float32_t;
   5 typedef signed char poly8_t;
   6 typedef short poly16_t;
   7 typedef unsigned __INT64_TYPE__ uint64_t;
   8
   9 // Define some valid Neon types.
  10 typedef __attribute__((neon_vector_type(2))) int int32x2_t;
  11 typedef __attribute__((neon_vector_type(4))) int int32x4_t;
  12 typedef __attribute__((neon_vector_type(1))) uint64_t uint64x1_t;
  13 typedef __attribute__((neon_vector_type(2))) uint64_t uint64x2_t;
  14 typedef __attribute__((neon_vector_type(2))) float32_t float32x2_t;
  15 typedef __attribute__((neon_vector_type(4))) float32_t float32x4_t;
  16 typedef __attribute__((neon_polyvector_type(16))) poly8_t  poly8x16_t;
  17 typedef __attribute__((neon_polyvector_type(8)))  poly16_t poly16x8_t;
  18
  19 // Verify that we can use the [[]] spelling of the attributes.
  20 // We intentionally use the same type alias names to check that both versions
  21 // define the same type.
  22 typedef int [[clang::neon_vector_type(2)]] int32x2_t;
  23 typedef poly8_t [[clang::neon_polyvector_type(16)]] poly8x16_t;
  24
  25 // Verify that we can use the attributes outside of a typedef.
  26 int [[clang::neon_vector_type(2)]] int32x2_var;
  27 poly8_t [[clang::neon_polyvector_type(16)]] poly8x16_var;
  28
  29 // The attributes must have a single argument.
  30 typedef __attribute__((neon_vector_type(2, 4))) int only_one_arg; // expected-error{{'neon_vector_type' attribute takes one argument}}
  31
  32 // The number of elements must be an ICE.
  33 typedef __attribute__((neon_vector_type(2.0))) int non_int_width; // expected-error{{'neon_vector_type' attribute requires an integer constant}}
  34
  35 // Only certain element types are allowed.
  36 typedef __attribute__((neon_vector_type(4))) void* ptr_elt; // expected-error{{invalid vector element type}}
  37 typedef __attribute__((neon_polyvector_type(4))) float32_t bad_poly_elt; // expected-error{{invalid vector element type}}
  38 struct aggr { signed char c; };
  39 typedef __attribute__((neon_vector_type(8))) struct aggr aggregate_elt; // expected-error{{invalid vector element type}}
  40
  41 // The total vector size must be 64 or 128 bits.
  42 typedef __attribute__((neon_vector_type(1))) int int32x1_t; // expected-error{{Neon vector size must be 64 or 128 bits}}
  43 typedef __attribute__((neon_vector_type(3))) int int32x3_t; // expected-error{{Neon vector size must be 64 or 128 bits}}