[llvm] r321577 - [X86] Remove isel patterns for kshifts with types that don't support kshift natively.

[Craig Topper via llvm-commits]

Author: ctopper
Date: Fri Dec 29 22:45:46 2017
New Revision: 321577

URL: http://llvm.org/viewvc/llvm-project?rev=321577&view=rev
Log:
[X86] Remove isel patterns for kshifts with types that don't support kshift natively.

We should only be creating natively supported kshifts now.

Modified:
    llvm/trunk/lib/Target/X86/X86InstrAVX512.td

Modified: llvm/trunk/lib/Target/X86/X86InstrAVX512.td
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/X86/X86InstrAVX512.td?rev=321577&r1=321576&r2=321577&view=diff
==============================================================================
--- llvm/trunk/lib/Target/X86/X86InstrAVX512.td (original)
+++ llvm/trunk/lib/Target/X86/X86InstrAVX512.td Fri Dec 29 22:45:46 2017
@@ -3087,23 +3087,6 @@ defm : operation_subvector_mask_lowering
 
 defm : operation_subvector_mask_lowering<VK32, v32i1, VK64, v64i1>;
 
-// Patterns for kmask shift
-multiclass mask_shift_lowering<RegisterClass RC, ValueType VT> {
-  def : Pat<(VT (X86kshiftl RC:$src, (i8 imm:$imm))),
-            (VT (COPY_TO_REGCLASS
-                   (KSHIFTLWri (COPY_TO_REGCLASS RC:$src, VK16),
-                               (I8Imm $imm)),
-                   RC))>;
-  def : Pat<(VT (X86kshiftr RC:$src, (i8 imm:$imm))),
-            (VT (COPY_TO_REGCLASS
-                   (KSHIFTRWri (COPY_TO_REGCLASS RC:$src, VK16),
-                               (I8Imm $imm)),
-                   RC))>;
-}
-
-defm : mask_shift_lowering<VK8, v8i1>, Requires<[HasAVX512, NoDQI]>;
-defm : mask_shift_lowering<VK4, v4i1>, Requires<[HasAVX512]>;
-defm : mask_shift_lowering<VK2, v2i1>, Requires<[HasAVX512]>;
 //===----------------------------------------------------------------------===//
 // AVX-512 - Aligned and unaligned load and store
 //