[PATCH] D12464: Add way to test for builtin TargetOpcode
Matt Arsenault via llvm-commits
llvm-commits at lists.llvm.org
Fri Aug 28 18:20:37 PDT 2015
arsenm created this revision.
arsenm added a subscriber: llvm-commits.
The alternative would be to add a bit to the target's InstrFlags but that seems like a waste of a bit.
http://reviews.llvm.org/D12464
Files:
include/llvm/Target/TargetInstrInfo.h
include/llvm/Target/TargetOpcodes.h
Index: include/llvm/Target/TargetOpcodes.h
===================================================================
--- include/llvm/Target/TargetOpcodes.h
+++ include/llvm/Target/TargetOpcodes.h
@@ -128,6 +128,10 @@
/// "zero cost" null checks in managed languages by allowing LLVM to fold
/// comparisons into existing memory operations.
FAULTING_LOAD_OP = 22,
+
+ /// BUILTIN_OP_END - This must be the last enum value in this list.
+ /// The target-specific post-isel opcode values start here.
+ BUILTIN_OP_END = FAULTING_LOAD_OP,
};
} // end namespace TargetOpcode
} // end namespace llvm
Index: include/llvm/Target/TargetInstrInfo.h
===================================================================
--- include/llvm/Target/TargetInstrInfo.h
+++ include/llvm/Target/TargetInstrInfo.h
@@ -61,6 +61,10 @@
virtual ~TargetInstrInfo();
+ static bool isBuiltinOpcode(unsigned Opc) {
+ return Opc < TargetOpcode::BUILTIN_OP_END;
+ }
+
/// Given a machine instruction descriptor, returns the register
/// class constraint for OpNum, or NULL.
const TargetRegisterClass *getRegClass(const MCInstrDesc &TID,
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