On Thu, 2022-07-07 at 18:30 +0800, Lulu Cheng wrote:
/* snip */
> diff --git a/gcc/testsuite/gcc.target/loongarch/prolog-opt.c
> b/gcc/testsuite/gcc.target/loongarch/prolog-opt.c
> new file mode 100644
> index 00000000000..c7bd71dde93
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/loongarch/prolog-opt.c
> @@ -0,0 +1,15 @@
> +/* Test that LoongArch backend stack drop operation optimized. */
> +
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -mabi=lp64d" } */
> +/* { dg-final { scan-assembler "addi.d\t\\\$r3,\\\$r3,-16" } } */
> +
> +#include <stdio.h>
It's better to hard code "extern int printf(char *, ...);" here, so the
test case won't unnecessarily depend on libc header.
LGTM otherwise.
> +
> +int main()
> +{
> + char buf[1024 * 12];
> + printf ("%p\n", buf);
> + return 0;
> +}
> +
