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22a8ab772c
Cleanup 64-bit multiplies. Combine the expanders using iterators.
Merge the signed/unsigned multiplies as well as the pre-Armv6 and Armv6
variants. Split DImode operands early into parallel sets inside the
MULL/MLAL instructions - this improves register allocation and avoids
subreg issues due to other DImode operations splitting early.
gcc/
* config/arm/arm.md (maddsidi4): Remove expander.
(mulsidi3adddi): Remove pattern.
(mulsidi3adddi_v6): Likewise.
(mulsidi3_nov6): Likewise.
(mulsidi3_v6): Likewise.
(umulsidi3): Remove expander.
(umulsidi3_nov6): Remove pattern.
(umulsidi3_v6): Likewise.
(umulsidi3adddi): Likewise.
(umulsidi3adddi_v6): Likewise.
(<Us>mulsidi3): Add combined expander.
(<Us>maddsidi4): Likewise.
(<US>mull): Add combined umull and smull pattern.
(<US>mlal): Likewise.
* config/arm/iterators.md (Us): Add new iterator.
From-SVN: r275901
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