[PATCH] D89150: [GlobalISel] Remove scalar src from non-sequential fadd/fmul reductions.
Amara Emerson via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Oct 9 11:02:33 PDT 2020
aemerson updated this revision to Diff 297282.
aemerson retitled this revision from "[GlobalISel] Remove scalar src from fadd/fmul reductions." to "[GlobalISel] Remove scalar src from non-sequential fadd/fmul reductions.".
aemerson added a comment.
Only do this for the relaxed ordering ones. If we were to split the op for the sequential variants, the commutative G_FADD would lose the associativity of the intrinsic.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D89150/new/
https://reviews.llvm.org/D89150
Files:
llvm/include/llvm/Target/GenericOpcodes.td
llvm/lib/CodeGen/MachineVerifier.cpp
llvm/test/CodeGen/AArch64/GlobalISel/legalizer-info-validation.mir
llvm/test/MachineVerifier/test_vector_reductions.mir
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