[llvm] [DAG] SDPatternMatch - add m_Negative/m_StrictlyPositive/m_NonNegative/m_NonPositive/m_NonZero matchers (PR #175191)

[Simon Pilgrim via llvm-commits]

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@@ -2077,6 +2077,21 @@ class SelectionDAG {
   /// floating-point value.
   LLVM_ABI bool SignBitIsZeroFP(SDValue Op, unsigned Depth = 0) const;
 
+  /// Return true if Op is strictly positive FP or integer
+  LLVM_ABI bool IsStrictlyPositive(SDValue Op, unsigned Depth = 0) const;
+
+  /// Return true if Op is non positive FP or integer
+  LLVM_ABI bool IsNonPositive(SDValue Op, unsigned Depth = 0) const;
+
+  /// Return true if Op is a Negative FP or integer
+  LLVM_ABI bool IsNegative(SDValue Op, unsigned Depth = 0) const;
+
+  /// Return true if Op is non negative
+  LLVM_ABI bool IsNonNegative(SDValue Op, unsigned Depth = 0) const;
+
+  /// Return true if Op is non zero
+  LLVM_ABI bool IsNonZero(SDValue Op, unsigned Depth = 0) const;
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RKSimon wrote:

Drop all these

https://github.com/llvm/llvm-project/pull/175191