Mercurial > hg > CbC > CbC_gcc
diff gcc/testsuite/c-c++-common/builtin-has-attribute.c @ 145:1830386684a0
gcc-9.2.0
author | anatofuz |
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date | Thu, 13 Feb 2020 11:34:05 +0900 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/gcc/testsuite/c-c++-common/builtin-has-attribute.c Thu Feb 13 11:34:05 2020 +0900 @@ -0,0 +1,60 @@ +/* Verify __builtin_has_attribute error handling. + { dg-do compile } + { dg-options "-Wall -ftrack-macro-expansion=0" } */ + +#define ATTR(list) __attribute__ (list) + +void fnone (void); + +ATTR ((aligned)) void faligned (void); +ATTR ((aligned (8))) void faligned_8 (void); + +#define has_attr(x, attr) __builtin_has_attribute (x, attr) + +#define A(expect, sym, attr) \ + typedef int Assert [1 - 2 * !(has_attr (sym, attr) == expect)] + + +int b; + +/* Exercise syntactically invalid arguments. */ + +void test_bad_arguments (void) +{ + b = __builtin_has_attribute (); /* { dg-error "expected \(primary-\)?expression|expected .,." } */ + b = __builtin_has_attribute (1); /* { dg-error "expected .,." } */ + b = __builtin_has_attribute (void); /* { dg-error "expected .,." } */ + b = __builtin_has_attribute (foo); /* { dg-error ".foo. \(undeclared|was not declared\)" } */ + /* { dg-error "expected .,." "missing comma" { target *-*-* } .-1 } */ + + /* Verify the implementationm doesn't ICE. */ + b = __builtin_has_attribute (foobar, aligned); /* { dg-error ".foobar. \(undeclared|was not declared\)" } */ + + b = __builtin_has_attribute (1, 2, 3); /* { dg-error "expected identifier" } */ + b = __builtin_has_attribute (int, 1 + 2); /* { dg-error "expected identifier" } */ + b = __builtin_has_attribute (2, "aligned"); /* { dg-error "expected identifier" } */ +} + +/* Exercise syntactically valid arguments applied in invalid ways. */ + +void test_invalid_arguments (void) +{ + b = has_attr (fnone, align); /* { dg-error "unknown attribute .align." } */ + b = has_attr (b, aligned__); /* { dg-error "unknown attribute .aligned__." } */ + b = has_attr (fnone, aligned (3)); /* { dg-error "alignment .3. is not a positive power of 2" } */ + + /* Verify the out-of-bounds arguments are diagnosed and the result + of the built-in is false. */ + A (0, fnone, alloc_size (1)); /* { dg-warning "\\\[-Wattributes]" } */ + A (0, fnone, alloc_size (2)); /* { dg-warning "\\\[-Wattributes]" } */ + + A (0, int, alloc_size (1)); /* { dg-warning ".alloc_size. attribute only applies to function types" } */ + + int i = 1; + A (0, i, alloc_size (1)); /* { dg-warning ".alloc_size. attribute only applies to function types" } */ + + A (0, faligned_8, aligned (i)); /* { dg-error "alignment is not an integer constant" } */ + + typedef ATTR ((aligned (2))) char CA2; + b = has_attr (CA2[2], aligned); /* { dg-error "alignment of array elements is greater than element size" } */ +}