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llvm-project/clang/test/Sema/attr-mode.c

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Update tests to use %clang_cc1 instead of 'clang-cc' or 'clang -cc1'. - This is designed to make it obvious that %clang_cc1 is a "test variable" which is substituted. It is '%clang_cc1' instead of '%clang -cc1' because it can be useful to redefine what gets run as 'clang -cc1' (for example, to set a default target). llvm-svn: 91446
2009-12-16 04:14:24 +08:00
// RUN: %clang_cc1 -fsyntax-only -verify %s
Implementation of gcc mode attribute; this is significant because it fixes PR2204. Not too much to say about the implementation; it works in a similar way to the vector size attribute. At some point, we need to modify the targets to provide information about the appropriate types. llvm-svn: 51577
2008-05-27 11:33:27 +08:00
typedef int i16_1 __attribute((mode(HI)));
int i16_1_test[sizeof(i16_1) == 2 ? 1 : -1];
typedef int i16_2 __attribute((__mode__(__HI__)));
int i16_2_test[sizeof(i16_1) == 2 ? 1 : -1];
typedef float f64 __attribute((mode(DF)));
int f64_test[sizeof(f64) == 8 ? 1 : -1];
typedef int invalid_1 __attribute((mode)); // expected-error{{attribute requires unquoted parameter}}
typedef int invalid_2 __attribute((mode())); // expected-error{{attribute requires unquoted parameter}}
typedef int invalid_3 __attribute((mode(II))); // expected-error{{unknown machine mode}}
typedef struct {int i,j,k;} invalid_4 __attribute((mode(SI))); // expected-error{{mode attribute only supported for integer and floating-point types}}
typedef float invalid_5 __attribute((mode(SI))); // expected-error{{type of machine mode does not match type of base type}}
Make ProcessDeclAttributes walk the declarator structure pulling decl attributes out of the various places they can hide. This makes us correctly reject things like this: t.c:2:22: error: mode attribute only supported for integer and floating-point types int **__attribute((mode(HI)))* i32; ^ because you can't make a pointer be HImode. llvm-svn: 52876
2008-06-29 08:16:31 +08:00
int **__attribute((mode(QI)))* i32; // expected-error{{mode attribute}}
PR3691: Add support for complex modes. I also tossed in support for XF while I was at it. There are still a lot of diagnostics missing from this code, and it isn't completely correct for anything other than x86, but it should work correctly on x86 for valid cases. llvm-svn: 65935
2009-03-03 14:41:03 +08:00
typedef _Complex double c32 __attribute((mode(SC)));
int c32_test[sizeof(c32) == 8 ? 1 : -1];
typedef _Complex float c64 __attribute((mode(DC)));
typedef _Complex float c80 __attribute((mode(XC)));