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target-ppc: VSX Stage 4: Add xsaddsp and xssubsp

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This patch adds the VSX Scalar Add Single-Precision (xsaddsp) and
VSX Scalar Subtract Single-Precision (xssubsp) instructions.

The existing VSX_ADD_SUB macro is modified to support the rounding
of the (intermediate) 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>
This commit is contained in:
Tom Musta 2014-01-15 08:10:33 -06:00 • committed by Alexander Graf
parent e16a626b82
commit 3fd0aadfc1
3 changed files with 22 additions and 7 deletions
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3
target-ppc/helper.h
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@ -286,6 +286,9 @@ DEF_HELPER_2(xsrdpim, void, env, i32)
DEF_HELPER_2(xsrdpip, void, env, i32)
DEF_HELPER_2(xsrdpiz, void, env, i32)
DEF_HELPER_2(xsaddsp, void, env, i32)
DEF_HELPER_2(xssubsp, void, env, i32)
DEF_HELPER_2(xvadddp, void, env, i32)
DEF_HELPER_2(xvsubdp, void, env, i32)
DEF_HELPER_2(xvmuldp, void, env, i32)