clang/test/AST/ast-print-pragmas.cpp

   1 // RUN: %clang_cc1 -ast-print %s -o - | FileCheck %s
   2 // RUN: %clang_cc1 -DMS_EXT -fsyntax-only -fms-extensions %s -triple x86_64-pc-win32 -ast-print | FileCheck %s --check-prefix=MS-EXT
   3
   4 // CHECK: #pragma clang loop vectorize_width(4)
   5 // CHECK-NEXT: #pragma clang loop interleave_count(8){{$}}
   6
   7 void test(int *List, int Length) {
   8   int i = 0;
   9 #pragma clang loop vectorize_width(4)
  10 #pragma clang loop interleave_count(8)
  11 // CHECK-NEXT: while (i < Length)
  12   while (i < Length) {
  13     List[i] = i * 2;
  14     i++;
  15   }
  16   i = 0;
  17
  18 // CHECK: #pragma clang loop vectorize_width(4, scalable)
  19
  20 #pragma clang loop vectorize_width(4, scalable)
  21 // CHECK-NEXT: while (i < Length)
  22   while (i < Length) {
  23     List[i] = i * 2;
  24     i++;
  25   }
  26   i = 0;
  27
  28 // CHECK: #pragma clang loop vectorize_width(fixed)
  29
  30 #pragma clang loop vectorize_width(fixed)
  31 // CHECK-NEXT: while (i < Length)
  32   while (i < Length) {
  33     List[i] = i * 2;
  34     i++;
  35   }
  36   i = 0;
  37
  38 // CHECK: #pragma clang loop vectorize_width(scalable)
  39
  40 #pragma clang loop vectorize_width(scalable)
  41 // CHECK-NEXT: while (i < Length)
  42   while (i < Length) {
  43     List[i] = i * 2;
  44     i++;
  45   }
  46
  47 // CHECK: #pragma clang loop distribute(disable)
  48 // CHECK-NEXT: #pragma clang loop vectorize(enable)
  49 // CHECK-NEXT: #pragma clang loop interleave(disable)
  50 // CHECK-NEXT: #pragma clang loop vectorize_predicate(disable)
  51
  52 #pragma clang loop distribute(disable)
  53 #pragma clang loop vectorize(enable)
  54 #pragma clang loop interleave(disable)
  55 #pragma clang loop vectorize_predicate(disable)
  56 // CHECK-NEXT: while (i - 1 < Length)
  57   while (i - 1 < Length) {
  58     List[i] = i * 2;
  59     i++;
  60   }
  61
  62 // CHECK: #pragma clang loop distribute(enable)
  63 // CHECK-NEXT: #pragma clang loop vectorize(disable)
  64 // CHECK-NEXT: #pragma clang loop interleave(enable)
  65 // CHECK-NEXT: #pragma clang loop vectorize_predicate(enable)
  66
  67 #pragma clang loop distribute(enable)
  68 #pragma clang loop vectorize(disable)
  69 #pragma clang loop interleave(enable)
  70 #pragma clang loop vectorize_predicate(enable)
  71 // CHECK-NEXT: while (i - 2 < Length)
  72   while (i - 2 < Length) {
  73     List[i] = i * 2;
  74     i++;
  75   }
  76 }
  77
  78 template <int V, int I>
  79 void test_nontype_template_param(int *List, int Length) {
  80 #pragma clang loop vectorize_width(V) interleave_count(I)
  81   for (int i = 0; i < Length; i++) {
  82     List[i] = i;
  83   }
  84 }
  85
  86 // CHECK: #pragma clang loop vectorize_width(V)
  87 // CHECK: #pragma clang loop interleave_count(I)
  88
  89 void test_templates(int *List, int Length) {
  90   test_nontype_template_param<2, 4>(List, Length);
  91 }
  92
  93 #ifdef MS_EXT
  94 #pragma init_seg(compiler)
  95 // MS-EXT: #pragma init_seg (.CRT$XCC){{$}}
  96 // MS-EXT-NEXT: __declspec(thread) int x = 3;
  97 __declspec(thread) int x = 3;
  98 #endif //MS_EXT
  99