[clang] 9320ac9 - [Clang] Only run test when X86 backend is built.

[David Blaikie via cfe-commits]

Is there a more reliable remark that could be tested for? (Clang shouldn't
be testing all remarks - just that the remark infrastructure in general is
wired up (specific remarks should be tested in llvm) - so picking some
really stable remark would be great)

maybe there's a remark for "this always_inline thing can't be inlined
because it's recursive" for instance?

On Mon, Mar 29, 2021 at 9:29 AM Florian Hahn via cfe-commits <
cfe-commits at lists.llvm.org> wrote:

>
> Author: Florian Hahn
> Date: 2021-03-29T17:27:01+01:00
> New Revision: 9320ac9b4965d769632398b620ca3e4af9b56b12
>
> URL:
> https://github.com/llvm/llvm-project/commit/9320ac9b4965d769632398b620ca3e4af9b56b12
> DIFF:
> https://github.com/llvm/llvm-project/commit/9320ac9b4965d769632398b620ca3e4af9b56b12.diff
>
> LOG: [Clang] Only run test when X86 backend is built.
>
> After c773d0f97304 the remark is only emitted if the loop is profitable
> to vectorize, but cannot be vectorized. Hence, it depends on
> X86-specific cost-modeling.
>
> Added:
>
>
> Modified:
>     clang/test/Frontend/optimization-remark-options.c
>
> Removed:
>
>
>
>
> ################################################################################
> diff  --git a/clang/test/Frontend/optimization-remark-options.c
> b/clang/test/Frontend/optimization-remark-options.c
> index 38dbbfbaccec0..f222eff37a5ef 100644
> --- a/clang/test/Frontend/optimization-remark-options.c
> +++ b/clang/test/Frontend/optimization-remark-options.c
> @@ -1,3 +1,4 @@
> +// REQUIRES: x86-registered-target
>  // RUN: %clang -O1 -fvectorize -target x86_64-unknown-unknown
> -Rpass-analysis=loop-vectorize -emit-llvm -S %s -o - 2>&1 | FileCheck %s
>
>  // CHECK: {{.*}}:9:11: remark: loop not vectorized: cannot prove it is
> safe to reorder floating-point operations; allow reordering by specifying
> '#pragma clang loop vectorize(enable)' before the loop or by providing the
> compiler option '-ffast-math'.
>
>
>
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