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adding a pattern for broadcastm 

Change-Id: I6551fb13879e098aed74de410e29815cf37d9ab5
llvm-svn: 317457
This commit is contained in:
Jina Nahias 2017-11-06 07:09:09 +00:00
parent 48e298b8c4
commit 9c6561b648
1 changed files with 2 additions and 2 deletions
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4
llvm/lib/Target/X86/X86ISelLowering.cpp
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@ -6748,8 +6748,8 @@ static SDValue lowerBuildVectorAsBroadcast(BuildVectorSDNode *BVOp,
// Attempt to use VBROADCASTM
// From this paterrn:
// a. t0 = (zext_i64 (bitcast_i8 v2i1 X))
// b. t1 = (build_vector t0 t0)
// a. t0 = (zext_i64 (bitcast_i8 v2i1 X))
// b. t1 = (build_vector t0 t0)
//
// Create (VBROADCASTM v2i1 X)
if (Subtarget.hasCDI() && (VT.is512BitVector() || Subtarget.hasVLX())) {