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-rw-r--r--llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp9
-rw-r--r--llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp2
2 files changed, 4 insertions, 7 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
index efcb6158ed3..d605a1dc1c2 100644
--- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -2044,8 +2044,7 @@ void SelectionDAG::computeKnownBits(SDValue Op, KnownBits &Known,
if (M < 0) {
// For UNDEF elements, we don't know anything about the common state of
// the shuffle result.
- Known.One.clearAllBits();
- Known.Zero.clearAllBits();
+ Known.resetAll();
DemandedLHS.clearAllBits();
DemandedRHS.clearAllBits();
break;
@@ -2218,14 +2217,13 @@ void SelectionDAG::computeKnownBits(SDValue Op, KnownBits &Known,
// Also compute a conservative estimate for high known-0 bits.
// More trickiness is possible, but this is sufficient for the
// interesting case of alignment computation.
- Known.One.clearAllBits();
unsigned TrailZ = Known.Zero.countTrailingOnes() +
Known2.Zero.countTrailingOnes();
unsigned LeadZ = std::max(Known.Zero.countLeadingOnes() +
Known2.Zero.countLeadingOnes(),
BitWidth) - BitWidth;
- Known.Zero.clearAllBits();
+ Known.resetAll();
Known.Zero.setLowBits(std::min(TrailZ, BitWidth));
Known.Zero.setHighBits(std::min(LeadZ, BitWidth));
break;
@@ -2598,8 +2596,7 @@ void SelectionDAG::computeKnownBits(SDValue Op, KnownBits &Known,
uint32_t Leaders = std::max(Known.Zero.countLeadingOnes(),
Known2.Zero.countLeadingOnes());
- Known.One.clearAllBits();
- Known.Zero.clearAllBits();
+ Known.resetAll();
Known.Zero.setHighBits(Leaders);
break;
}
diff --git a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
index cf3eed827af..23f597db140 100644
--- a/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
+++ b/llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp
@@ -1303,7 +1303,7 @@ void TargetLowering::computeKnownBitsForTargetNode(const SDValue Op,
Op.getOpcode() == ISD::INTRINSIC_VOID) &&
"Should use MaskedValueIsZero if you don't know whether Op"
" is a target node!");
- Known.Zero.clearAllBits(); Known.One.clearAllBits();
+ Known.resetAll();
}
/// This method can be implemented by targets that want to expose additional
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