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| author | Craig Topper <craig.topper@intel.com> | 2017-12-14 18:35:25 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2017-12-14 18:35:25 +0000 |
| commit | 600f1ba333a42e9f26d799db1b206c4eae4bd091 (patch) | |
| tree | 7c68ba840927ab467f74cadcb4c3d891a655a460 /llvm/lib/CodeGen/UnreachableBlockElim.cpp | |
| parent | 708c9f5947faa3c8cb78a74772f3139d0113d614 (diff) | |
| download | bcm5719-llvm-600f1ba333a42e9f26d799db1b206c4eae4bd091.tar.gz bcm5719-llvm-600f1ba333a42e9f26d799db1b206c4eae4bd091.zip | |
[X86] Don't zero the upper bits of the k-register before extracting a single bit from a vXi1.
This doesn't match the semantics of the extract_vector_elt operation. Nothing downstream knows the bits were zeroed so they still get masked or sign extended after the extrat anyway.
llvm-svn: 320723
Diffstat (limited to 'llvm/lib/CodeGen/UnreachableBlockElim.cpp')
0 files changed, 0 insertions, 0 deletions
