Vendor import of llvm trunk r161861:

http://llvm.org/svn/llvm-project/llvm/trunk@161861

1 files changed, 12 insertions, 0 deletions

diff --git a/include/llvm/Target/TargetSelectionDAG.td b/include/llvm/Target/TargetSelectionDAG.td
index f55cf0e..3f81c06 100644
--- a/include/llvm/Target/TargetSelectionDAG.td
+++ b/include/llvm/Target/TargetSelectionDAG.td
@@ -404,11 +404,16 @@ def brind      : SDNode<"ISD::BRIND"      , SDTBrind,  [SDNPHasChain]>;
 def br         : SDNode<"ISD::BR"         , SDTBr,     [SDNPHasChain]>;
 def trap       : SDNode<"ISD::TRAP"       , SDTNone,
                         [SDNPHasChain, SDNPSideEffect]>;
+def debugtrap  : SDNode<"ISD::DEBUGTRAP"  , SDTNone,
+                        [SDNPHasChain, SDNPSideEffect]>;
 
 def prefetch   : SDNode<"ISD::PREFETCH"   , SDTPrefetch,
                         [SDNPHasChain, SDNPMayLoad, SDNPMayStore,
                          SDNPMemOperand]>;
 
+def readcyclecounter : SDNode<"ISD::READCYCLECOUNTER", SDTIntLeaf,
+                     [SDNPHasChain, SDNPSideEffect]>;
+
 def membarrier : SDNode<"ISD::MEMBARRIER" , SDTMemBarrier,
                         [SDNPHasChain, SDNPSideEffect]>;
 
@@ -593,6 +598,13 @@ def not  : PatFrag<(ops node:$in), (xor node:$in, -1)>;
 def vnot : PatFrag<(ops node:$in), (xor node:$in, immAllOnesV)>;
 def ineg : PatFrag<(ops node:$in), (sub 0, node:$in)>;
 
+// null_frag - The null pattern operator is used in multiclass instantiations
+// which accept an SDPatternOperator for use in matching patterns for internal
+// definitions. When expanding a pattern, if the null fragment is referenced
+// in the expansion, the pattern is discarded and it is as-if '[]' had been
+// specified. This allows multiclasses to have the isel patterns be optional.
+def null_frag : SDPatternOperator;
+
 // load fragments.
 def unindexedload : PatFrag<(ops node:$ptr), (ld node:$ptr), [{
   return cast<LoadSDNode>(N)->getAddressingMode() == ISD::UNINDEXED;