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Re: [PATCH 1/3] Add PTWRITE builtins for x86
- From: Segher Boessenkool <segher at kernel dot crashing dot org>
- To: Uros Bizjak <ubizjak at gmail dot com>
- Cc: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>, Andi Kleen <andi at firstfloor dot org>
- Date: Fri, 9 Nov 2018 20:53:37 -0600
- Subject: Re: [PATCH 1/3] Add PTWRITE builtins for x86
- References: <CAFULd4a7eE5-pk0FW-phAS_dxDGwnO1c08JwBO36WNQ2QAUAFA@mail.gmail.com>
On Thu, Nov 08, 2018 at 06:30:21PM +0100, Uros Bizjak wrote:
> --- /dev/null
> +++ b/gcc/testsuite/gcc.target/i386/ptwrite2.c
> @@ -0,0 +1,14 @@
> +/* { dg-do compile } */
> +/* { dg-options "-O2 -mptwrite " } */
> +/* { dg-final { scan-assembler "ptwrite.*r" } } */
> +/* { dg-final { scan-assembler "ptwrite.*e" } } */
>
> Better use \[^\n\r\] instead of .* to avoid unwanted multi-line matches.
Or better, write it as
/* { dg-final { scan-assembler {(?n)ptwrite.*r} } } */
Segher