[llvm-commits] CVS: llvm/include/llvm/Target/TargetLowering.h

[Evan Cheng]

Changes in directory llvm/include/llvm/Target:

TargetLowering.h updated: 1.68 -> 1.69
---
Log message:

Added a virtual method isVectorClearMaskLegal to TLI. It is similar to
isShuffleMaskLegal, used to determine if it makes sense to turn a
"vector clear" (e.g. pand V, <0, -1, 0, -1> to a shuffle of the vector and
a zero vector.


---
Diffs of the changes:  (+10 -0)

 TargetLowering.h |   10 ++++++++++
 1 files changed, 10 insertions(+)


Index: llvm/include/llvm/Target/TargetLowering.h
diff -u llvm/include/llvm/Target/TargetLowering.h:1.68 llvm/include/llvm/Target/TargetLowering.h:1.69
--- llvm/include/llvm/Target/TargetLowering.h:1.68	Wed Apr 12 11:21:12 2006
+++ llvm/include/llvm/Target/TargetLowering.h	Thu Apr 20 03:54:13 2006
@@ -200,6 +200,16 @@
     return true;
   }
 
+  /// isVectorClearMaskLegal - Similar to isShuffleMaskLegal. This is
+  /// used by Targets can use this to indicate if there is a suitable
+  /// VECTOR_SHUFFLE that can be used to replace a VAND with a constant
+  /// pool entry.
+  virtual bool isVectorClearMaskLegal(std::vector<SDOperand> &BVOps,
+                                      MVT::ValueType EVT,
+                                      SelectionDAG &DAG) const {
+    return false;
+  }
+
   /// getOperationAction - Return how this operation should be treated: either
   /// it is legal, needs to be promoted to a larger size, needs to be
   /// expanded to some other code sequence, or the target has a custom expander