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adf66b6174
This also clarifies some terminology used by the diagnostic (methods -> Objective-C methods, fields -> non-static data members, etc). Many of the tests needed to be updated in multiple places for the diagnostic wording tweaks. The first instance of the diagnostic for that attribute is fully specified and subsequent instances cut off the complete list (to make it easier if additional subjects are added in the future for the attribute). llvm-svn: 319002
61 lines
2.6 KiB
C
61 lines
2.6 KiB
C
// RUN: %clang_cc1 -fsyntax-only -verify %s
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int test1(int *a) {
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a = __builtin_assume_aligned(a, 32, 0ull);
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return a[0];
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}
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int test2(int *a) {
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a = __builtin_assume_aligned(a, 32, 0);
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return a[0];
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}
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int test3(int *a) {
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a = __builtin_assume_aligned(a, 32);
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return a[0];
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}
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int test4(int *a) {
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a = __builtin_assume_aligned(a, -32); // expected-error {{requested alignment is not a power of 2}}
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// FIXME: The line below produces {{requested alignment is not a power of 2}}
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// on i386-freebsd, but not on x86_64-linux (for example).
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// a = __builtin_assume_aligned(a, 1ULL << 63);
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return a[0];
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}
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int test5(int *a, unsigned *b) {
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a = __builtin_assume_aligned(a, 32, b); // expected-warning {{incompatible pointer to integer conversion passing 'unsigned int *' to parameter of type}}
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return a[0];
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}
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int test6(int *a) {
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a = __builtin_assume_aligned(a, 32, 0, 0); // expected-error {{too many arguments to function call, expected at most 3, have 4}}
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return a[0];
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}
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int test7(int *a) {
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a = __builtin_assume_aligned(a, 31); // expected-error {{requested alignment is not a power of 2}}
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return a[0];
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}
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int test8(int *a, int j) {
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a = __builtin_assume_aligned(a, j); // expected-error {{must be a constant integer}}
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return a[0];
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}
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void test_void_assume_aligned(void) __attribute__((assume_aligned(32))); // expected-warning {{'assume_aligned' attribute only applies to return values that are pointers}}
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int test_int_assume_aligned(void) __attribute__((assume_aligned(16))); // expected-warning {{'assume_aligned' attribute only applies to return values that are pointers}}
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void *test_ptr_assume_aligned(void) __attribute__((assume_aligned(64))); // no-warning
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int j __attribute__((assume_aligned(8))); // expected-warning {{'assume_aligned' attribute only applies to Objective-C methods and functions}}
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void *test_no_fn_proto() __attribute__((assume_aligned(32))); // no-warning
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void *test_with_fn_proto(void) __attribute__((assume_aligned(128))); // no-warning
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void *test_no_fn_proto() __attribute__((assume_aligned(31))); // expected-error {{requested alignment is not a power of 2}}
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void *test_no_fn_proto() __attribute__((assume_aligned(32, 73))); // no-warning
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void *test_no_fn_proto() __attribute__((assume_aligned)); // expected-error {{'assume_aligned' attribute takes at least 1 argument}}
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void *test_no_fn_proto() __attribute__((assume_aligned())); // expected-error {{'assume_aligned' attribute takes at least 1 argument}}
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void *test_no_fn_proto() __attribute__((assume_aligned(32, 45, 37))); // expected-error {{'assume_aligned' attribute takes no more than 2 arguments}}
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