3 files changed, 10 insertions, 0 deletions
diff --git a/llvm/include/llvm/Support/TargetOpcodes.def b/llvm/include/llvm/Support/TargetOpcodes.def
index 5547938bc13..e30c6e1bfb2 100644
--- a/llvm/include/llvm/Support/TargetOpcodes.def
+++ b/llvm/include/llvm/Support/TargetOpcodes.def
@@ -285,6 +285,9 @@ HANDLE_TARGET_OPCODE(G_INTRINSIC_TRUNC)
 /// INTRINSIC round intrinsic.
 HANDLE_TARGET_OPCODE(G_INTRINSIC_ROUND)
 
+/// INTRINSIC readcyclecounter
+HANDLE_TARGET_OPCODE(G_READCYCLECOUNTER)
+
 /// Generic load (including anyext load)
 HANDLE_TARGET_OPCODE(G_LOAD)
 
diff --git a/llvm/include/llvm/Target/GenericOpcodes.td b/llvm/include/llvm/Target/GenericOpcodes.td
index e3037327b64..e252748bd30 100644
--- a/llvm/include/llvm/Target/GenericOpcodes.td
+++ b/llvm/include/llvm/Target/GenericOpcodes.td
@@ -758,6 +758,12 @@ def G_INTRINSIC_ROUND : GenericInstruction {
   let hasSideEffects = 0;
 }
 
+def G_READCYCLECOUNTER : GenericInstruction {
+  let OutOperandList = (outs type0:$dst);
+  let InOperandList = (ins);
+  let hasSideEffects = 1;
+}
+
 //------------------------------------------------------------------------------
 // Memory ops
 //------------------------------------------------------------------------------
diff --git a/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td b/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
index 380fba0e4e3..095c75015d0 100644
--- a/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
+++ b/llvm/include/llvm/Target/GlobalISel/SelectionDAGCompat.td
@@ -119,6 +119,7 @@ def : GINodeEquiv<G_FMINNUM, fminnum>;
 def : GINodeEquiv<G_FMAXNUM, fmaxnum>;
 def : GINodeEquiv<G_FMINNUM_IEEE, fminnum_ieee>;
 def : GINodeEquiv<G_FMAXNUM_IEEE, fmaxnum_ieee>;
+def : GINodeEquiv<G_READCYCLECOUNTER, readcyclecounter>;
 
 // Broadly speaking G_LOAD is equivalent to ISD::LOAD but there are some
 // complications that tablegen must take care of. For example, Predicates such