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[PATCH, AArch64] Fix the generation of .arch and .cpu assembly directives

From: Yufeng Zhang <Yufeng dot Zhang at arm dot com>
To: "gcc-patches at gcc dot gnu dot org" <gcc-patches at gcc dot gnu dot org>
Cc: Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>
Date: Wed, 10 Apr 2013 15:44:00 +0100
Subject: [PATCH, AArch64] Fix the generation of .arch and .cpu assembly directives

Hi,

This patch changes the compiler to correctly generate .arch and .cpuassembly directives in order to support the inline assembly of

instructions that are part of a feature, e.g. crypto.

OK for the trunk?

Thanks,
Yufeng


gcc/

        * config/aarch64/aarch64.c (aarch64_print_extension): New function.
        (aarch64_start_file): Use the new function.

Attachment: patch
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