diff options
| author | Dan Gohman <gohman@apple.com> | 2010-06-18 01:05:21 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2010-06-18 01:05:21 +0000 |
| commit | b92156d5e4e6ad86e945d51f8fbb0138db60e08a (patch) | |
| tree | 68b0f594963ff23da6745d0c69458551db6e6444 /llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp | |
| parent | 0136309f5aaf4fc0e11c20222ab4a3bfda1e5ec5 (diff) | |
| download | bcm5719-llvm-b92156d5e4e6ad86e945d51f8fbb0138db60e08a.tar.gz bcm5719-llvm-b92156d5e4e6ad86e945d51f8fbb0138db60e08a.zip | |
Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,
which is faster, simpler, and less surprising.
llvm-svn: 106263
Diffstat (limited to 'llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 1cca100d56f..730bfda2046 100644 --- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp @@ -1042,7 +1042,7 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op, if (TLO.ShrinkDemandedConstant(Op, ~KnownZero2 & NewMask)) return true; // If the operation can be done in a smaller type, do so. - if (TLO.ShrinkOps && TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) + if (TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) return true; // Output known-1 bits are only known if set in both the LHS & RHS. @@ -1076,7 +1076,7 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op, if (TLO.ShrinkDemandedConstant(Op, NewMask)) return true; // If the operation can be done in a smaller type, do so. - if (TLO.ShrinkOps && TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) + if (TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) return true; // Output known-0 bits are only known if clear in both the LHS & RHS. @@ -1101,7 +1101,7 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op, if ((KnownZero2 & NewMask) == NewMask) return TLO.CombineTo(Op, Op.getOperand(1)); // If the operation can be done in a smaller type, do so. - if (TLO.ShrinkOps && TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) + if (TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) return true; // If all of the unknown bits are known to be zero on one side or the other @@ -1548,7 +1548,7 @@ bool TargetLowering::SimplifyDemandedBits(SDValue Op, KnownOne2, TLO, Depth+1)) return true; // See if the operation should be performed at a smaller bit width. - if (TLO.ShrinkOps && TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) + if (TLO.ShrinkDemandedOp(Op, BitWidth, NewMask, dl)) return true; } // FALL THROUGH |
