clang/test/Parser/pragma-loop-safety.cpp

   1 // RUN: %clang_cc1 -std=c++11 -verify %s
   2
   3 // Note that this puts the expected lines before the directives to work around
   4 // limitations in the -verify mode.
   5
   6 void test(int *List, int Length) {
   7   int i = 0;
   8
   9 #pragma clang loop vectorize(assume_safety)
  10 #pragma clang loop interleave(assume_safety)
  11   while (i + 1 < Length) {
  12     List[i] = i;
  13   }
  14
  15 /* expected-error {{expected ')'}} */ #pragma clang loop vectorize(assume_safety
  16 /* expected-error {{expected ')'}} */ #pragma clang loop interleave(assume_safety
  17
  18 /* expected-error {{invalid argument; expected 'enable', 'full' or 'disable'}} */ #pragma clang loop unroll(assume_safety)
  19 /* expected-error {{invalid argument; expected 'enable' or 'disable'}} */ #pragma clang loop distribute(assume_safety)
  20
  21 /* expected-error {{invalid argument; expected 'enable', 'assume_safety' or 'disable'}} */ #pragma clang loop vectorize(badidentifier)
  22 /* expected-error {{invalid argument; expected 'enable', 'assume_safety' or 'disable'}} */ #pragma clang loop interleave(badidentifier)
  23 /* expected-error {{invalid argument; expected 'enable', 'full' or 'disable'}} */ #pragma clang loop unroll(badidentifier)
  24   while (i-7 < Length) {
  25     List[i] = i;
  26   }
  27
  28 #pragma clang loop vectorize(enable)
  29 /* expected-error {{duplicate directives 'vectorize(enable)' and 'vectorize(assume_safety)'}} */ #pragma clang loop vectorize(assume_safety)
  30 #pragma clang loop interleave(enable)
  31 /* expected-error {{duplicate directives 'interleave(enable)' and 'interleave(assume_safety)'}} */ #pragma clang loop interleave(assume_safety)
  32   while (i-9 < Length) {
  33     List[i] = i;
  34   }
  35 }