[PATCH] D134266: Generic atomic instructions identifier function

[Yashwant Singh via Phabricator via llvm-commits]

yassingh created this revision.
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Bounded generic atomic opcodes by markers that are used to check if a opcode is G_ATOMIC_ type


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D134266

Files:
  llvm/include/llvm/CodeGen/TargetInstrInfo.h
  llvm/include/llvm/Support/TargetOpcodes.def


Index: llvm/include/llvm/Support/TargetOpcodes.def
===================================================================
--- llvm/include/llvm/Support/TargetOpcodes.def
+++ llvm/include/llvm/Support/TargetOpcodes.def
@@ -387,6 +387,14 @@
 HANDLE_TARGET_OPCODE(G_ATOMICRMW_FMAX)
 HANDLE_TARGET_OPCODE(G_ATOMICRMW_FMIN)
 
+// Marker for start of Generic Atomic opcodes
+HANDLE_TARGET_OPCODE_MARKER(PRE_ISEL_GENERIC_ATOMIC_OPCODE_START, G_ATOMIC_CMPXCHG_WITH_SUCCESS)
+HANDLE_TARGET_OPCODE_MARKER(GENERIC_ATOMIC_OP_START, PRE_ISEL_GENERIC_ATOMIC_OPCODE_START)
+
+// Marker of end of Generic Atomic opcodes
+HANDLE_TARGET_OPCODE_MARKER(PRE_ISEL_GENERIC_ATOMIC_OPCODE_END, G_ATOMICRMW_FMIN)
+HANDLE_TARGET_OPCODE_MARKER(GENERIC_ATOMIC_OP_END, PRE_ISEL_GENERIC_ATOMIC_OPCODE_END)
+
 // Generic atomic fence
 HANDLE_TARGET_OPCODE(G_FENCE)
 
Index: llvm/include/llvm/CodeGen/TargetInstrInfo.h
===================================================================
--- llvm/include/llvm/CodeGen/TargetInstrInfo.h
+++ llvm/include/llvm/CodeGen/TargetInstrInfo.h
@@ -110,6 +110,11 @@
     return Opc <= TargetOpcode::GENERIC_OP_END;
   }
 
+  static bool isGenericAtomicOpcode(unsigned Opc) {
+    return TargetOpcode::GENERIC_ATOMIC_OP_START <= Opc &&
+           Opc <= TargetOpcode::GENERIC_ATOMIC_OP_END;
+  }
+
   /// Given a machine instruction descriptor, returns the register
   /// class constraint for OpNum, or NULL.
   virtual


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