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[PATCH] model vector widening multiplication for the spu

From: Dorit Nuzman <DORIT at il dot ibm dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: trevor_smigiel at playstation dot sony dot com, Andrew Pinski <pinskia at gmail dot com>
Date: Tue, 19 Dec 2006 11:38:18 +0200
Subject: [PATCH] model vector widening multiplication for the spu

This patch models vector widening multiplication idioms for the spu. Tested
on the vectorizer testcases (one additional testcase now gets vectorized:
vect-widen-mult-s16.c).
ok to commit once passes full make check?

dorit

:ADDPATCH (spu):

ChangeLog:

        * config/spu/spu.md (vec_widen_umult_hi_v8hi): New.
        (vec_widen_umult_lo_v8hi, vec_widen_smult_hi_v8hi): New.
        (vec_widen_smult_lo_v8hi): New.
        * config/spu/spu.c (TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_EVEN):
Defined.
        (TARGET_VECTORIZE_BUILTIN_MUL_WIDEN_ODD): Defined.
        (spu_builtin_mul_widen_even, spu_builtin_mul_widen_odd): New.

Testsuite Changelog:

        * lib/target-supports.exp: Add spu to
        check_effective_target_vect_widen_mult_hi_to_si.

Patch:

(See attached file: dec19.spupatch.txt)

Attachment: dec19.spupatch.txt
Description: Text document

Follow-Ups:
- Re: [PATCH] model vector widening multiplication for the spu
  - From: Ben Elliston

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