1 // RUN: %clang_cc1 %s -triple=i686-apple-darwin9 -target-cpu pentium4 -verify -DVERIFY 2 // RUN: %clang_cc1 %s -E -triple=i686-apple-darwin9 -target-cpu pentium4 3 // RUN: %clang_cc1 %s -triple=i686-apple-darwin9 -target-cpu pentium4 -fms-extensions -DMS -verify -DVERIFY 4 // RUN: %clang_cc1 %s -E -triple=i686-apple-darwin9 -target-cpu pentium4 -fms-extensions -DMS 5 #ifndef __has_feature 6 #error Should have __has_feature 7 #endif 8 9 10 #if __has_feature(something_we_dont_have) 11 #error Bad 12 #endif 13 14 #if !__has_builtin(__builtin_huge_val) || \ 15 !__has_builtin(__builtin_shufflevector) || \ 16 !__has_builtin(__builtin_convertvector) || \ 17 !__has_builtin(__builtin_trap) || \ 18 !__has_builtin(__c11_atomic_init) || \ 19 !__has_builtin(__builtin_launder) || \ 20 !__has_feature(attribute_analyzer_noreturn) || \ 21 !__has_feature(attribute_overloadable) 22 #error Clang should have these 23 #endif 24 25 // These are technically implemented as keywords, but __has_builtin should 26 // still return true. 27 #if !__has_builtin(__builtin_LINE) || \ 28 !__has_builtin(__builtin_FILE) || \ 29 !__has_builtin(__builtin_FILE_NAME) || \ 30 !__has_builtin(__builtin_FUNCTION) || \ 31 !__has_builtin(__builtin_COLUMN) || \ 32 !__has_builtin(__builtin_types_compatible_p) 33 #error Clang should have these 34 #endif 35 36 #ifdef MS 37 #if !__has_builtin(__builtin_FUNCSIG) 38 #error Clang should have this 39 #endif 40 #elif __has_builtin(__builtin_FUNCSIG) 41 #error Clang should not have this without '-fms-extensions' 42 #endif 43 44 // These are C++-only builtins. 45 #if __has_builtin(__array_rank) || \ 46 __has_builtin(__underlying_type) || \ 47 __has_builtin(__is_trivial) 48 #error Clang should not have these in C mode 49 #endif 50 51 #if __has_builtin(__builtin_insanity) 52 #error Clang should not have this 53 #endif 54 55 #if !__has_feature(__attribute_deprecated_with_message__) 56 #error Feature name in double underscores does not work 57 #endif 58 59 // Make sure we have x86 builtins only (forced with target triple). 60 61 #if !__has_builtin(__builtin_ia32_emms) || \ 62 __has_builtin(__builtin_altivec_abs_v4sf) 63 #error Broken handling of target-specific builtins 64 #endif 65 66 // Macro expansion does not occur in the parameter to __has_builtin, 67 // __has_feature, etc. (as is also expected behaviour for ordinary 68 // macros), so the following should not expand: 69 70 #define MY_ALIAS_BUILTIN __c11_atomic_init 71 #define MY_ALIAS_FEATURE attribute_overloadable 72 73 #if __has_builtin(MY_ALIAS_BUILTIN) || __has_feature(MY_ALIAS_FEATURE) 74 #error Alias expansion not allowed 75 #endif 76 77 // But deferring should expand: 78 79 #define HAS_BUILTIN(X) __has_builtin(X) 80 #define HAS_FEATURE(X) __has_feature(X) 81 82 #if !HAS_BUILTIN(MY_ALIAS_BUILTIN) || !HAS_FEATURE(MY_ALIAS_FEATURE) 83 #error Expansion should have occurred 84 #endif 85 86 #ifdef VERIFY 87 // expected-error@+1 {{builtin feature check macro requires a parenthesized identifier}} 88 #if __has_feature('x') 89 #endif 90 91 // The following are not identifiers: 92 _Static_assert(!__is_identifier("string"), "oops"); 93 _Static_assert(!__is_identifier('c'), "oops"); 94 _Static_assert(!__is_identifier(123), "oops"); 95 _Static_assert(!__is_identifier(int), "oops"); 96 97 // The following are: 98 _Static_assert(__is_identifier(abc /* comment */), "oops"); 99 _Static_assert(__is_identifier /* comment */ (xyz), "oops"); 100 101 // expected-error@+1 {{too few arguments}} 102 #if __is_identifier() 103 #endif 104 105 // expected-error@+1 {{too many arguments}} 106 #if __is_identifier(,()) 107 #endif 108 109 // expected-error@+1 {{missing ')' after 'abc'}} 110 #if __is_identifier(abc xyz) // expected-note {{to match this '('}} 111 #endif 112 113 // expected-error@+1 {{missing ')' after 'abc'}} 114 #if __is_identifier(abc()) // expected-note {{to match this '('}} 115 #endif 116 117 // expected-error@+1 {{missing ')' after '.'}} 118 #if __is_identifier(.abc) // expected-note {{to match this '('}} 119 #endif 120 121 // expected-error@+1 {{nested parentheses not permitted in '__is_identifier'}} 122 #if __is_identifier((abc)) 123 #endif 124 125 // expected-error@+1 {{missing '(' after '__is_identifier'}} expected-error@+1 {{expected value}} 126 #if __is_identifier 127 #endif 128 129 // expected-error@+1 {{unterminated}} expected-error@+1 {{expected value}} 130 #if __is_identifier( 131 #endif 132 133 #endif 134