diff options
Diffstat (limited to 'gcc/testsuite/gcc.c-torture/execute/alloca-1.c')
-rw-r--r-- | gcc/testsuite/gcc.c-torture/execute/alloca-1.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.c-torture/execute/alloca-1.c b/gcc/testsuite/gcc.c-torture/execute/alloca-1.c new file mode 100644 index 000000000..a8d1384c6 --- /dev/null +++ b/gcc/testsuite/gcc.c-torture/execute/alloca-1.c @@ -0,0 +1,21 @@ +/* Verify that alloca storage is sufficiently aligned. */ +/* ??? May fail if BIGGEST_ALIGNMENT > STACK_BOUNDARY. Which, I guess + can only happen on !STRICT_ALIGNMENT targets. */ + +typedef __SIZE_TYPE__ size_t; + +struct dummy { int x __attribute__((aligned)); }; +#define BIGGEST_ALIGNMENT __alignof__(struct dummy) + +_Bool foo(void) +{ + char *p = __builtin_alloca(32); + return ((size_t)p & (BIGGEST_ALIGNMENT - 1)) == 0; +} + +int main() +{ + if (!foo()) + abort (); + return 0; +} |