diff options
Diffstat (limited to 'llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp')
| -rw-r--r-- | llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp index 8b930bd95df..95100d074b4 100644 --- a/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp +++ b/llvm/lib/Transforms/InstCombine/InstCombineSimplifyDemanded.cpp @@ -1472,6 +1472,16 @@ Value *InstCombiner::SimplifyDemandedVectorElts(Value *V, APInt DemandedElts, break; } + case Intrinsic::x86_ssse3_pshuf_b_128: + case Intrinsic::x86_avx2_pshuf_b: + case Intrinsic::x86_avx512_pshuf_b_512: { + Value *Op1 = II->getArgOperand(1); + TmpV = SimplifyDemandedVectorElts(Op1, DemandedElts, UndefElts, + Depth + 1); + if (TmpV) { II->setArgOperand(1, TmpV); MadeChange = true; } + break; + } + // SSE4A instructions leave the upper 64-bits of the 128-bit result // in an undefined state. case Intrinsic::x86_sse4a_extrq: |
