target/arm: Convert Neon 3-reg-diff saturating doubling multiplies
commit9546ca5998d3cbd98a81b2d46a2e92a11b0f78a4
authorPeter Maydell <peter.maydell@linaro.org>
Tue, 16 Jun 2020 09:32:26 +0000 (16 10:32 +0100)
committerPeter Maydell <peter.maydell@linaro.org>
Tue, 16 Jun 2020 09:32:26 +0000 (16 10:32 +0100)
treebcf3325ced48a3eb9a4a898722146e9448038a60
parent3a1d9eb07b767a7592abca642af80906f9eab0ed
target/arm: Convert Neon 3-reg-diff saturating doubling multiplies

Convert the Neon 3-reg-diff insns VQDMULL, VQDMLAL and VQDMLSL:
these are all saturating doubling long multiplies with a possible
accumulate step.

These are the last insns in the group which use the pass-over-each
elements loop, so we can delete that code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
target/arm/neon-dp.decode
target/arm/translate-neon.inc.c
target/arm/translate.c