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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 | 3cf92802148655027d277940eafb1f38d4d6b1fb (patch) | |
| tree | a13a69800ee4f3ccaf75082c850ae5c86e238655 /llvm/lib/CodeGen/SelectionDAG | |
| parent | 97eb52da7b25467014e1bb99a82a2fb515461b37 (diff) | |
| download | bcm5719-llvm-3cf92802148655027d277940eafb1f38d4d6b1fb.tar.gz bcm5719-llvm-3cf92802148655027d277940eafb1f38d4d6b1fb.zip | |
Add a getNumSignBits() method to APInt.
llvm-svn: 126379
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 7 |
1 files changed, 1 insertions, 6 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 2fb2f2d8aa1..0b7cbcc47e1 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/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: |
