[MIB] Create a helper function getRegState to extract all register flags

llvm-svn: 269414

2 files changed, 11 insertions, 12 deletions

diff --git a/llvm/include/llvm/CodeGen/MachineInstrBuilder.h b/llvm/include/llvm/CodeGen/MachineInstrBuilder.h
index 917eead97d7..7b0dcc151e0 100644
--- a/llvm/include/llvm/CodeGen/MachineInstrBuilder.h
+++ b/llvm/include/llvm/CodeGen/MachineInstrBuilder.h
@@ -386,6 +386,17 @@ inline unsigned getDebugRegState(bool B) {
   return B ? RegState::Debug : 0;
 }
 
+/// Get all register state flags from machine operand \p RegOp.
+inline unsigned getRegState(const MachineOperand &RegOp) {
+  assert(RegOp.isReg() && "Not a register operand");
+  return getDefRegState(RegOp.isDef())                    |
+         getImplRegState(RegOp.isImplicit())              |
+         getKillRegState(RegOp.isKill())                  |
+         getDeadRegState(RegOp.isDead())                  |
+         getUndefRegState(RegOp.isUndef())                |
+         getInternalReadRegState(RegOp.isInternalRead())  |
+         getDebugRegState(RegOp.isDebug());
+}
 
 /// Helper class for constructing bundles of MachineInstrs.
 ///
diff --git a/llvm/lib/Target/Hexagon/HexagonSplitDouble.cpp b/llvm/lib/Target/Hexagon/HexagonSplitDouble.cpp
index 62999e5f170..9571778b560 100644
--- a/llvm/lib/Target/Hexagon/HexagonSplitDouble.cpp
+++ b/llvm/lib/Target/Hexagon/HexagonSplitDouble.cpp
@@ -108,18 +108,6 @@ INITIALIZE_PASS(HexagonSplitDoubleRegs, "hexagon-split-double",
   "Hexagon Split Double Registers", false, false)
 
 
-static inline uint32_t getRegState(const MachineOperand &R) {
-  assert(R.isReg());
-  return getDefRegState(R.isDef()) |
-         getImplRegState(R.isImplicit()) |
-         getKillRegState(R.isKill()) |
-         getDeadRegState(R.isDead()) |
-         getUndefRegState(R.isUndef()) |
-         getInternalReadRegState(R.isInternalRead()) |
-         (R.isDebug() ? RegState::Debug : 0);
-}
-
-
 void HexagonSplitDoubleRegs::dump_partition(raw_ostream &os,
       const USet &Part, const TargetRegisterInfo &TRI) {
   dbgs() << '{';