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| author | Cameron Zwarich <zwarich@apple.com> | 2011-02-24 10:00:20 +0000 |
|---|---|---|
| committer | Cameron Zwarich <zwarich@apple.com> | 2011-02-24 10:00:20 +0000 |
| commit | 9b6af8de58140566a0e6567508bf906027422e7c (patch) | |
| tree | 66e1ac3bf4aca9859c4a97981206d2f8752722d6 /lib/CodeGen/SelectionDAG/SelectionDAG.cpp | |
| parent | 324a24f6aa5d6752c57c39e1e19f00b8c8a4ceec (diff) | |
Add a getNumSignBits() method to APInt.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@126379 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/SelectionDAG.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 2fb2f2d8aa..0b7cbcc47e 100644 --- a/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -2088,12 +2088,7 @@ unsigned SelectionDAG::ComputeNumSignBits(SDValue Op, unsigned Depth) const{ case ISD::Constant: { const APInt &Val = cast<ConstantSDNode>(Op)->getAPIntValue(); - // If negative, return # leading ones. - if (Val.isNegative()) - return Val.countLeadingOnes(); - - // Return # leading zeros. - return Val.countLeadingZeros(); + return Val.getNumSignBits(); } case ISD::SIGN_EXTEND: |