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[PATCH, i386]: Vectorize round insn

From: Uros Bizjak <ubizjak at gmail dot com>
To: gcc-patches at gcc dot gnu dot org
Date: Fri, 26 Aug 2011 21:40:38 +0200
Subject: [PATCH, i386]: Vectorize round insn

Hello!

Attached patch enables vectorization of round function using sse4.1
round insn. AZ stands for "Away from Zero".

2011-08-26  Uros Bizjak  <ubizjak@gmail.com>

	* config/i386/sse.md (round<mode>2): New expander.
	* config/i386/i386.c (enum ix86_builtins): Add
	IX86_BUILTIN_ROUND{PS,PD}_AZ{,256}.
	(struct builtin_description): Add __builtin_ia32_round{ps,pd}_az{,256}
	descriptions.
	(ix86_builtin_vectorized_function): Handle BUILT_IN_ROUND{,F} builtins.

testsuite/ChangeLog:

2011-08-26  Uros Bizjak  <ubizjak@gmail.com>

	* gcc.target/i386/sse_4_1-round-vec.c: New test.
	* gcc.target/i386/sse_4_1-roundf-vec.c: New test.
	* gcc.target/i386/avx-round-vec.c: New test.
	* gcc.target/i386/avx-roundf-vec.c: New test.

Bootstrapped and regression tested on x86_64-pc-linux-gnu {,-m32},
committed to mainline.

Uros.

Attachment: p.diff.txt
Description: Text document

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