diff options
Diffstat (limited to 'gcc/testsuite/gcc.target/aarch64/stack-check-14.c')
| -rw-r--r-- | gcc/testsuite/gcc.target/aarch64/stack-check-14.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.target/aarch64/stack-check-14.c b/gcc/testsuite/gcc.target/aarch64/stack-check-14.c new file mode 100644 index 00000000000..59ffe01376d --- /dev/null +++ b/gcc/testsuite/gcc.target/aarch64/stack-check-14.c @@ -0,0 +1,25 @@ +/* { dg-do compile } */ +/* { dg-options "-O2 -fstack-clash-protection --param stack-clash-protection-guard-size=12" } */ +/* { dg-require-effective-target supports_stack_clash_protection } */ + +int t1(int); + +int t2(int x) +{ + char *p = __builtin_alloca (4050); + x = t1 (x); + return p[x]; +} + + +/* This test has a constant sized alloca that is smaller than the + probe interval. But it actually requires two probes instead + of one because of the optimistic assumptions we made in the + aarch64 prologue code WRT probing state. + + The form can change quite a bit so we just check for two + probes without looking at the actual address. */ +/* { dg-final { scan-assembler-times "str\\txzr," 2 } } */ + + + |