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| author | Craig Topper <craig.topper@intel.com> | 2017-12-14 08:25:58 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2017-12-14 08:25:58 +0000 |
| commit | eab2d4665fdb6a28664c6936d58adc6b35796db1 (patch) | |
| tree | 231e6e3bab5b6b848067ff49d9ee3607931da46b /llvm/lib/CodeGen/MachineOperand.cpp | |
| parent | 271a5c72a0f43f8da540800dba016f5d1337c997 (diff) | |
| download | llvm-eab2d4665fdb6a28664c6936d58adc6b35796db1.zip llvm-eab2d4665fdb6a28664c6936d58adc6b35796db1.tar.gz llvm-eab2d4665fdb6a28664c6936d58adc6b35796db1.tar.bz2 | |
[SelectionDAG][X86] Improve legalization of v32i1 CONCAT_VECTORS of v16i1 for AVX512F.
A v32i1 CONCAT_VECTORS of v16i1 uses promotion to v32i8 to legalize the v32i1. This results in a bunch of extract_vector_elts and a build_vector that ultimately gets scalarized.
This patch checks to see if v16i8 is legal and inserts a any_extend to that so that we can concat v16i8 to v32i8 and avoid creating the extracts.
llvm-svn: 320674
Diffstat (limited to 'llvm/lib/CodeGen/MachineOperand.cpp')
0 files changed, 0 insertions, 0 deletions