llvm-project/clang/test/Sema/alloc-align-attr.c
Aaron Ballman e765e0bc8e Use functions with prototypes when appropriate; NFC
A significant number of our tests in C accidentally use functions
without prototypes. This patch converts the function signatures to have
a prototype for the situations where the test is not specific to K&R C
declarations. e.g.,

  void func();

becomes

  void func(void);

This is the first batch of tests being updated (there are a significant
number of other tests left to be updated).
2022-02-03 16:42:27 -05:00

32 lines
1.9 KiB
C

// RUN: %clang_cc1 -fsyntax-only -verify %s
// return values
void test_void_alloc_align(void) __attribute__((alloc_align(1))); // expected-warning {{'alloc_align' attribute only applies to return values that are pointers}}
void *test_ptr_alloc_align(unsigned long long a) __attribute__((alloc_align(1))); // no-warning
int j __attribute__((alloc_align(1))); // expected-warning {{'alloc_align' attribute only applies to non-K&R-style functions}}
void *test_no_params_zero(void) __attribute__((alloc_align(0))); // expected-error {{'alloc_align' attribute parameter 1 is out of bounds}}
void *test_no_params(void) __attribute__((alloc_align(1))); // expected-error {{'alloc_align' attribute parameter 1 is out of bounds}}
void *test_incorrect_param_type(float a) __attribute__((alloc_align(1))); // expected-error {{'alloc_align' attribute argument may only refer to a function parameter of integer type}}
// argument type
void *test_bad_param_type(void) __attribute((alloc_align(1.1))); // expected-error {{'alloc_align' attribute requires parameter 1 to be an integer constant}}
// argument count
void *test_no_fn_proto(int x, int y) __attribute__((alloc_align)); // expected-error {{'alloc_align' attribute takes one argument}}
void *test_no_fn_proto(int x, int y) __attribute__((alloc_align())); // expected-error {{'alloc_align' attribute takes one argument}}
void *test_no_fn_proto(int x, int y) __attribute__((alloc_align(32, 45, 37))); // expected-error {{'alloc_align' attribute takes one argument}}
void *passthrought(int a) {
return test_ptr_alloc_align(a);
}
void *align16(void) {
return test_ptr_alloc_align(16);
}
void *align15(void) {
return test_ptr_alloc_align(15); // expected-warning {{requested alignment is not a power of 2}}
}
void *align1073741824(void) {
return test_ptr_alloc_align(8589934592); // expected-warning {{requested alignment must be 4294967296 bytes or smaller; maximum alignment assumed}}
}