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target-ppc: VSX Stage 4: Add Scalar SP Fused Multiply-Adds
authorTom Musta <tommusta@gmail.com>
Wed, 15 Jan 2014 14:10:39 +0000 (08:10 -0600)
committerAlexander Graf <agraf@suse.de>
Wed, 5 Mar 2014 02:06:36 +0000 (03:06 +0100)
commitf53f81e08bd0192121c4e0c3f1fdc53832631b4b
tree4ba9d9949c38c8f03a7f56356d67f484985a987e
parent968e76bcab9a3c40f37c9a52822b6daa90ae7cd8
target-ppc: VSX Stage 4: Add Scalar SP Fused Multiply-Adds

This patch adds the Single Precision VSX Scalar Fused Multiply-Add
instructions: xsmaddasp, xsmaddmsp, xssubasp, xssubmsp, xsnmaddasp,
xsnmaddmsp, xsnmsubasp, xsnmsubmsp.

The existing VSX_MADD() macro is modified to support rounding of the
intermediate double precision result to single precision.

Signed-off-by: Tom Musta <tommusta@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
target-ppc/fpu_helper.c
target-ppc/helper.h
target-ppc/translate.c