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[AVX512] No need to check for BWI being enabled before lowering v32i16 and v64i8 shuffles. If we get this far the types are already legal which means BWI must be enabled. 

llvm-svn: 272449
This commit is contained in:
Craig Topper 2016-06-11 03:27:37 +00:00
parent 334aa07915
commit b9b86fcfff
1 changed files with 2 additions and 9 deletions
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11
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -11889,20 +11889,13 @@ static SDValue lower512BitVectorShuffle(SDValue Op, SDValue V1, SDValue V2,
case MVT::v16i32:
return lowerV16I32VectorShuffle(Op, V1, V2, Subtarget, DAG);
case MVT::v32i16:
if (Subtarget.hasBWI())
return lowerV32I16VectorShuffle(Op, V1, V2, Subtarget, DAG);
break;
return lowerV32I16VectorShuffle(Op, V1, V2, Subtarget, DAG);
case MVT::v64i8:
if (Subtarget.hasBWI())
return lowerV64I8VectorShuffle(Op, V1, V2, Subtarget, DAG);
break;
return lowerV64I8VectorShuffle(Op, V1, V2, Subtarget, DAG);
default:
llvm_unreachable("Not a valid 512-bit x86 vector type!");
}
// Otherwise fall back on splitting.
return splitAndLowerVectorShuffle(DL, VT, V1, V2, Mask, DAG);
}
// Lower vXi1 vector shuffles.