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Re: [PATCH 2/2] Add test cases for noreorder
- From: Jan Hubicka <hubicka at ucw dot cz>
- To: Andi Kleen <andi at firstfloor dot org>
- Cc: gcc-patches at gcc dot gnu dot org, hubicka at ucw dot cz, Andi Kleen <ak at linux dot intel dot com>
- Date: Mon, 22 Sep 2014 22:34:30 +0200
- Subject: Re: [PATCH 2/2] Add test cases for noreorder
- Authentication-results: sourceware.org; auth=none
- References: <1410837304-13952-1-git-send-email-andi at firstfloor dot org> <1410837304-13952-2-git-send-email-andi at firstfloor dot org> <1410837304-13952-3-git-send-email-andi at firstfloor dot org>
> From: Andi Kleen <ak@linux.intel.com>
>
> Add some simple test cases for noreorder behaving like
> -fno-toplevel-reorder and -fno-toplevel-reorder still working.
> Unfortunately there's no easy way to check for output order in DG,
> so we just check for existence.
OK, thanks!
Honza
>
> gcc/testsuite/:
>
> 2014-09-15 Andi Kleen <ak@linux.intel.com>
>
> * gcc.dg/noreorder.c: New test.
> * gcc.dg/noreorder2.c: New test.
> * gcc.dg/noreorder3.c: New test.
> * gcc.dg/noreorder4.c: New test.
> ---
> gcc/testsuite/gcc.dg/noreorder.c | 38 ++++++++++++++++++++++++++++++++++++++
> gcc/testsuite/gcc.dg/noreorder2.c | 11 +++++++++++
> gcc/testsuite/gcc.dg/noreorder3.c | 10 ++++++++++
> gcc/testsuite/gcc.dg/noreorder4.c | 5 +++++
> 4 files changed, 64 insertions(+)
> create mode 100644 gcc/testsuite/gcc.dg/noreorder.c
> create mode 100644 gcc/testsuite/gcc.dg/noreorder2.c
> create mode 100644 gcc/testsuite/gcc.dg/noreorder3.c
> create mode 100644 gcc/testsuite/gcc.dg/noreorder4.c
>
> diff --git a/gcc/testsuite/gcc.dg/noreorder.c b/gcc/testsuite/gcc.dg/noreorder.c
> new file mode 100644
> index 0000000..7d40a29
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/noreorder.c
> @@ -0,0 +1,38 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2" } */
> +
> +/* The function order in this file is opposite from what the cgraph
> + topological sort would output. So we can check the order is preserved. */
> +
> +extern void f2(int);
> +static int func2(void);
> +
> +#ifndef NOREORDER
> +#define NOREORDER __attribute__((no_reorder))
> +#endif
> +
> +asm("firstasm");
> +
> +NOREORDER __attribute__((noinline)) int bozo(void)
> +{
> + f2(3);
> + func2();
> +}
> +
> +asm("jukjuk");
> +
> +NOREORDER __attribute__((noinline)) static int func1(void)
> +{
> + f2(1);
> +}
> +
> +asm("barbar");
> +
> +NOREORDER __attribute__((noinline)) static int func2(void)
> +{
> + func1();
> +}
> +
> +asm("lastasm");
> +
> +/* { dg-final { scan-assembler "firstasm.*bozo.*jukjuk.*func1.*barbar.*func2.*lastasm" } } */
> diff --git a/gcc/testsuite/gcc.dg/noreorder2.c b/gcc/testsuite/gcc.dg/noreorder2.c
> new file mode 100644
> index 0000000..558361b
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/noreorder2.c
> @@ -0,0 +1,11 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -fno-toplevel-reorder" } */
> +
> +__attribute__((no_reorder)) int foobar;
> +
> +static int barbar;
> +int bozo;
> +
> +/* { dg-final { scan-assembler "foobar" } } */
> +/* { dg-final { scan-assembler "bozo" } } */
> +/* { dg-final { scan-assembler "barbar" } } */
> diff --git a/gcc/testsuite/gcc.dg/noreorder3.c b/gcc/testsuite/gcc.dg/noreorder3.c
> new file mode 100644
> index 0000000..a0b637f
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/noreorder3.c
> @@ -0,0 +1,10 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2" } */
> +
> +__attribute__((no_reorder)) int foobar;
> +static int barbar;
> +int bozo;
> +
> +/* { dg-final { scan-assembler "foobar" } } */
> +/* { dg-final { scan-assembler "bozo" } } */
> +/* { dg-final { scan-assembler-not "barbar" } } */
> diff --git a/gcc/testsuite/gcc.dg/noreorder4.c b/gcc/testsuite/gcc.dg/noreorder4.c
> new file mode 100644
> index 0000000..632fc33
> --- /dev/null
> +++ b/gcc/testsuite/gcc.dg/noreorder4.c
> @@ -0,0 +1,5 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -fno-toplevel-reorder" } */
> +#define NOREORDER
> +#include "noreorder.c"
> +/* { dg-final { scan-assembler "bozo.*jukjuk.*func1.*barbar.*func2" } } */
> --
> 2.1.0