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| 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 | ee544cf62d01d9b70170f92b5650dcd763e6013f (patch) | |
| tree | c09b3eb1b448651efb494764ea9c9a6eeb843ed7 /lib/CodeGen/SelectionDAG/TargetLowering.cpp | |
| parent | 3599c4ca2ca9641dc85f8b5de9d6369c40622bd8 (diff) | |
| download | external_llvm-ee544cf62d01d9b70170f92b5650dcd763e6013f.zip external_llvm-ee544cf62d01d9b70170f92b5650dcd763e6013f.tar.gz external_llvm-ee544cf62d01d9b70170f92b5650dcd763e6013f.tar.bz2 | |
Fold the ShrinkDemandedOps pass into the regular DAGCombiner pass,
which is faster, simpler, and less surprising.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@106263 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/CodeGen/SelectionDAG/TargetLowering.cpp')
| -rw-r--r-- | lib/CodeGen/SelectionDAG/TargetLowering.cpp | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/lib/CodeGen/SelectionDAG/TargetLowering.cpp index 1cca100..730bfda 100644 --- a/lib/CodeGen/SelectionDAG/TargetLowering.cpp +++ b/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 |