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[ARM] v8.3-a complex number support

Description

[ARM] v8.3-a complex number support

New instructions are added to AArch32 and AArch64 to aid
floating-point multiplication and addition of complex numbers, where
the complex numbers are packed in a vector register as a pair of
elements. The Imaginary part of the number is placed in the more
significant element, and the Real part of the number is placed in the
less significant element.

This patch adds assembler for the ARM target.

Differential Revision: https://reviews.llvm.org/D36789

Details

Committed
sam_parkerSep 29 2017, 6:11 AM
Differential Revision
D36789: [ARM] v8.3-a complex number support
Parents
rL314510: Small modification <NFC>
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