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| author | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-12-12 10:29:43 +0000 |
|---|---|---|
| committer | Simon Pilgrim <llvm-dev@redking.me.uk> | 2016-12-12 10:29:43 +0000 |
| commit | 040a36c17652cf043496272c226ecfbe735e954f (patch) | |
| tree | be34ad734adcc8a60b8dc333d1a1c4ab78f045f8 /llvm/lib/CodeGen/SelectionDAG | |
| parent | 36ecce9bedb14b1c8e884bd0ec309103d7c3675c (diff) | |
| download | bcm5719-llvm-040a36c17652cf043496272c226ecfbe735e954f.tar.gz bcm5719-llvm-040a36c17652cf043496272c226ecfbe735e954f.zip | |
[SelectionDAG] Add support for EXTRACT_SUBVECTOR to ComputeNumSignBits
Pre-commit as discussed on D27657
llvm-svn: 289425
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 45c9c59fe21..6608e32d43f 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2977,6 +2977,8 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, unsigned Depth) const { return ComputeNumSignBits(Op.getOperand(0), Depth+1); break; } + case ISD::EXTRACT_SUBVECTOR: + return ComputeNumSignBits(Op.getOperand(0), Depth + 1); case ISD::CONCAT_VECTORS: // Determine the minimum number of sign bits across all input vectors. // Early out if the result is already 1. |
