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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-07-19 21:52:06 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2018-07-19 21:52:06 +0000 |
| commit | 1d181bc992a4a037e6af47a94068932540d29040 (patch) | |
| tree | 1df74272c7f8ab6fdf4555fd11f9c0b9a84b077c /llvm/lib/Bitcode/Writer/BitcodeWriter.cpp | |
| parent | 8e75de21002f104e4c328b5f43cc031fcb48f45f (diff) | |
| download | bcm5719-llvm-1d181bc992a4a037e6af47a94068932540d29040.tar.gz bcm5719-llvm-1d181bc992a4a037e6af47a94068932540d29040.zip | |
[X86][AVX] Use extract_subvector to reduce vector op widths (PR36761)
We have a number of cases where we fail to reduce vector op widths, performing the op in a larger vector and then extracting a subvector. This is often because by default it would create illegal types.
This peephole patch attempts to handle a few common cases detailed in PR36761, which typically involved extension+conversion to vX2f64 types.
Differential Revision: https://reviews.llvm.org/D49556
llvm-svn: 337500
Diffstat (limited to 'llvm/lib/Bitcode/Writer/BitcodeWriter.cpp')
0 files changed, 0 insertions, 0 deletions
