1// RUN: %clang_cc1 %s -triple=i686-apple-darwin9
2// RUN: %clang_cc1 %s -E -triple=i686-apple-darwin9
3#ifndef __has_feature
4#error Should have __has_feature
5#endif
6
7
8#if __has_feature(something_we_dont_have)
9#error Bad
10#endif
11
12#if  !__has_builtin(__builtin_huge_val) || \
13     !__has_builtin(__builtin_shufflevector) || \
14     !__has_builtin(__builtin_convertvector) || \
15     !__has_builtin(__builtin_trap) || \
16     !__has_builtin(__c11_atomic_init) || \
17     !__has_feature(attribute_analyzer_noreturn) || \
18     !__has_feature(attribute_overloadable)
19#error Clang should have these
20#endif
21
22#if __has_builtin(__builtin_insanity)
23#error Clang should not have this
24#endif
25
26#if !__has_feature(__attribute_deprecated_with_message__)
27#error Feature name in double underscores does not work
28#endif
29
30// Make sure we have x86 builtins only (forced with target triple).
31
32#if !__has_builtin(__builtin_ia32_emms) || \
33    __has_builtin(__builtin_altivec_abs_v4sf)
34#error Broken handling of target-specific builtins
35#endif
36
37// Macro expansion does not occur in the parameter to __has_builtin,
38// __has_feature, etc. (as is also expected behaviour for ordinary
39// macros), so the following should not expand:
40
41#define MY_ALIAS_BUILTIN __c11_atomic_init
42#define MY_ALIAS_FEATURE attribute_overloadable
43
44#if __has_builtin(MY_ALIAS_BUILTIN) || __has_feature(MY_ALIAS_FEATURE)
45#error Alias expansion not allowed
46#endif
47
48// But deferring should expand:
49
50#define HAS_BUILTIN(X) __has_builtin(X)
51#define HAS_FEATURE(X) __has_feature(X)
52
53#if !HAS_BUILTIN(MY_ALIAS_BUILTIN) || !HAS_FEATURE(MY_ALIAS_FEATURE)
54#error Expansion should have occurred
55#endif
56