clang/test/Parser/pragma-optimize-diagnostics.cpp

   1 // RUN: %clang_cc1 -fsyntax-only -verify %s
   2
   3 #pragma clang optimize off
   4
   5 #pragma clang optimize on
   6
   7 // Extra arguments
   8 #pragma clang optimize on top of spaghetti  // expected-error {{unexpected extra argument 'top' to '#pragma clang optimize'}}
   9
  10 // Wrong argument
  11 #pragma clang optimize something_wrong  // expected-error {{unexpected argument 'something_wrong' to '#pragma clang optimize'; expected 'on' or 'off'}}
  12
  13 // No argument
  14 #pragma clang optimize // expected-error {{missing argument to '#pragma clang optimize'; expected 'on' or 'off'}}
  15
  16 // Check that macros can be used in the pragma
  17 #define OFF off
  18 #define ON on
  19 #pragma clang optimize OFF
  20 #pragma clang optimize ON
  21
  22 // Check that _Pragma can also be used to address the use case where users want
  23 // to define optimization control macros to abstract out which compiler they are
  24 // using.
  25 #define OPT_OFF _Pragma("clang optimize off")
  26 #define OPT_ON _Pragma("clang optimize on")
  27 OPT_OFF
  28 OPT_ON