[PATCH] D125308: [AArch64] Add missing HasNEON predicates to int->float patterns
Alexander Richardson via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Tue May 10 05:10:20 PDT 2022
arichardson created this revision.
Herald added subscribers: hiraditya, kristof.beyls.
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arichardson added reviewers: SjoerdMeijer, dmgreen, t.p.northover.
arichardson published this revision for review.
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I was trying to compile code with -march=+nosimd and hit various
instruction predicate verification errors, this patch should address the
ones I saw in integer to floating-pointer conversions.
I noticed that for signed conversions, some non-NEON instruction sequences
are shorter. I don't know if the longer one is still faster on current
architectures (the patterns date back to the initial backend import)
Repository:
rG LLVM Github Monorepo
https://reviews.llvm.org/D125308
Files:
llvm/lib/Target/AArch64/AArch64InstrInfo.td
llvm/test/CodeGen/AArch64/int-to-fp-no-neon.ll
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