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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-04-09 15:44:20 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-04-09 15:44:20 +0000 |
| commit | 23c2182c2bfcd145b2c33cf5ca831a7348e6adce (patch) | |
| tree | 539213fa47e89fc0f31e62c647aceda93c205cb5 /llvm/lib/CodeGen/MachineOperand.cpp | |
| parent | bec8a66454882285db4c98311ba430adec2c8dac (diff) | |
| download | llvm-23c2182c2bfcd145b2c33cf5ca831a7348e6adce.zip llvm-23c2182c2bfcd145b2c33cf5ca831a7348e6adce.tar.gz llvm-23c2182c2bfcd145b2c33cf5ca831a7348e6adce.tar.bz2 | |
Support generic expansion of ordered vector reduction (PR36732)
Without the fast math flags, the llvm.experimental.vector.reduce.fadd/fmul intrinsic expansions must be expanded in order.
This patch scalarizes the reduction, applying the accumulator at the start of the sequence: ((((Acc + Scl[0]) + Scl[1]) + Scl[2]) + ) ... + Scl[NumElts-1]
Differential Revision: https://reviews.llvm.org/D45366
llvm-svn: 329585
Diffstat (limited to 'llvm/lib/CodeGen/MachineOperand.cpp')
0 files changed, 0 insertions, 0 deletions