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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-11-15 17:42:53 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-11-15 17:42:53 +0000 |
| commit | 924f1934190691a2eca6e8f6a0f0be25ba61bb7f (patch) | |
| tree | 6f8225bb45941aba921900939b9ef61c8c56a33f /llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp | |
| parent | b94ad1e1d383630f45c3e3d67d8a61a01d8045ed (diff) | |
| download | llvm-924f1934190691a2eca6e8f6a0f0be25ba61bb7f.zip llvm-924f1934190691a2eca6e8f6a0f0be25ba61bb7f.tar.gz llvm-924f1934190691a2eca6e8f6a0f0be25ba61bb7f.tar.bz2 | |
[TTI] Reduction costs only need to include a single extract element cost
We were adding the entire scalarization extraction cost for reductions, which returns the total cost of extracting every element of a vector type.
For reductions we don't need to do this - we just need to extract the 0'th element after the reduction pattern has completed.
Fixes PR37731
Differential Revision: https://reviews.llvm.org/D54585
llvm-svn: 346970
Diffstat (limited to 'llvm/lib/Target/WebAssembly/Disassembler/WebAssemblyDisassembler.cpp')
0 files changed, 0 insertions, 0 deletions