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| author | Michael Kuperstein <mkuper@google.com> | 2016-09-28 06:13:58 +0000 |
|---|---|---|
| committer | Michael Kuperstein <mkuper@google.com> | 2016-09-28 06:13:58 +0000 |
| commit | 3e06eafc2089f4c8ebca4ce632a29161d3a15df1 (patch) | |
| tree | 12b9029f88a476142ce85a4b3733690c5a4f1668 /llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 536ff0dd2f3b5c27de5c2ad0bd19ab424aae9f09 (diff) | |
| download | bcm5719-llvm-3e06eafc2089f4c8ebca4ce632a29161d3a15df1.tar.gz bcm5719-llvm-3e06eafc2089f4c8ebca4ce632a29161d3a15df1.zip | |
[DAG] Remove isVectorClearMaskLegal() check from vector_build dagcombine
This check currently doesn't seem to do anything useful on any in-tree target:
On non-x86, it always evaluates to false, so we never hit the code path that
creates the shuffle with zero.
On x86, it just forwards to isShuffleMaskLegal(), which is a reasonable thing to
query in general, but doesn't make sense if only restricted to zero blends.
Differential Revision: https://reviews.llvm.org/D24625
llvm-svn: 282567
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
0 files changed, 0 insertions, 0 deletions
