Pattern match vmrg* instructions, which are now lowered by the CFE into shuffles.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@27457 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/PowerPC/PPCISelLowering.h b/lib/Target/PowerPC/PPCISelLowering.h
index 77d85c2..c2666ed 100644
--- a/lib/Target/PowerPC/PPCISelLowering.h
+++ b/lib/Target/PowerPC/PPCISelLowering.h
@@ -109,6 +109,14 @@
     /// isVPKUWUMShuffleMask - Return true if this is the shuffle mask for a
     /// VPKUWUM instruction.
     bool isVPKUWUMShuffleMask(SDNode *N);
+
+    /// isVMRGLShuffleMask - Return true if this is a shuffle mask suitable for
+    /// a VRGL* instruction with the specified unit size (1,2 or 4 bytes).
+    bool isVMRGLShuffleMask(SDNode *N, unsigned UnitSize);
+
+    /// isVMRGHShuffleMask - Return true if this is a shuffle mask suitable for
+    /// a VRGH* instruction with the specified unit size (1,2 or 4 bytes).
+    bool isVMRGHShuffleMask(SDNode *N, unsigned UnitSize);
     
     /// isVSLDOIShuffleMask - If this is a vsldoi shuffle mask, return the shift
     /// amount, otherwise return -1.