clang/test/Sema/vector-init.c

   1 // RUN: %clang_cc1 %s -fsyntax-only -verify
   2
   3 //typedef __attribute__(( ext_vector_type(4) ))  float float4;
   4 typedef float float4 __attribute__((vector_size(16)));
   5
   6 float4 foo = (float4){ 1.0, 2.0, 3.0, 4.0 };
   7
   8 float4 foo2 = (float4){ 1.0, 2.0, 3.0, 4.0 , 5.0 }; // expected-warning{{excess elements in vector initializer}}
   9
  10 float4 array[] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0, 9.0};
  11 int array_sizecheck[(sizeof(array) / sizeof(float4)) == 3 ? 1 : -1];
  12
  13 float4 array2[2] = { 1.0, 2.0, 3.0, 4.0, 5.0, 6.0, 7.0, 8.0,
  14                      9.0 }; // expected-warning {{excess elements in array initializer}}
  15
  16 float4 array3[2] = { {1.0, 2.0, 3.0}, 5.0, 6.0, 7.0, 8.0,
  17                      9.0 }; // expected-warning {{excess elements in array initializer}}
  18
  19 // PR5650
  20 __attribute__((vector_size(16))) float f1(void) {
  21   __attribute__((vector_size(16))) float vec = {0.0f, 0.0f, 0.0f};
  22   return(vec);
  23 }
  24
  25 __attribute__((vector_size(16))) float f2(
  26     __attribute__((vector_size(16))) float a1) {
  27   return(a1);
  28 }
  29
  30
  31
  32 // PR5265
  33 typedef float __attribute__((ext_vector_type (3))) float3;
  34 int test2[sizeof(float3) == sizeof(float4) ? 1 : -1];
  35
  36 // rdar://problem/8345836
  37 typedef long long __attribute__((vector_size(16))) longlong2;
  38 typedef short __attribute__((vector_size(16))) short8;
  39 typedef short __attribute__((vector_size(8))) short4;
  40 void test3(void) {
  41   extern short8 test3_helper(void);
  42   longlong2 arr1[2] = { test3_helper(), test3_helper() };
  43   short4 arr2[2] = { test3_helper(), test3_helper() }; // expected-error 2 {{initializing 'short4' (vector of 4 'short' values) with an expression of incompatible type 'short8' (vector of 8 'short' values)}}
  44 }
  45
  46 // GH50216
  47 // These would previously crash when constant evaluating the initializers.
  48 typedef double float64x1_t __attribute__((vector_size(8)));
  49 float64x1_t arg1 = (float64x1_t)0x3fedf9d4343c7c80; // okay
  50
  51 typedef float float32x1_t __attribute__((vector_size(4)));
  52 float32x1_t arg2 = (float32x1_t)0x3fedf9d4; // okay