[WebAssembly][NFC] Reuse the regClassToValType helper in WebAssemblyMCInstLower

There's no need for WebAssemblyMCInstLower to carry its own functionally
equivalent implementation.

1 files changed, 4 insertions, 21 deletions

diff --git a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
index 2e6027a..e8b3542 100644
--- a/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
+++ b/llvm/lib/Target/WebAssembly/WebAssemblyMCInstLower.cpp
@@ -154,25 +154,6 @@ MCOperand WebAssemblyMCInstLower::lowerTypeIndexOperand(
   return MCOperand::createExpr(Expr);
 }
 
-// Return the WebAssembly type associated with the given register class.
-static wasm::ValType getType(const TargetRegisterClass *RC) {
-  if (RC == &WebAssembly::I32RegClass)
-    return wasm::ValType::I32;
-  if (RC == &WebAssembly::I64RegClass)
-    return wasm::ValType::I64;
-  if (RC == &WebAssembly::F32RegClass)
-    return wasm::ValType::F32;
-  if (RC == &WebAssembly::F64RegClass)
-    return wasm::ValType::F64;
-  if (RC == &WebAssembly::V128RegClass)
-    return wasm::ValType::V128;
-  if (RC == &WebAssembly::EXTERNREFRegClass)
-    return wasm::ValType::EXTERNREF;
-  if (RC == &WebAssembly::FUNCREFRegClass)
-    return wasm::ValType::FUNCREF;
-  llvm_unreachable("Unexpected register class");
-}
-
 static void getFunctionReturns(const MachineInstr *MI,
                                SmallVectorImpl<wasm::ValType> &Returns) {
   const Function &F = MI->getMF()->getFunction();
@@ -221,10 +202,12 @@ void WebAssemblyMCInstLower::lower(const MachineInstr *MI,
           const MachineRegisterInfo &MRI =
               MI->getParent()->getParent()->getRegInfo();
           for (const MachineOperand &MO : MI->defs())
-            Returns.push_back(getType(MRI.getRegClass(MO.getReg())));
+            Returns.push_back(
+                WebAssembly::regClassToValType(MRI.getRegClass(MO.getReg())));
           for (const MachineOperand &MO : MI->explicit_uses())
             if (MO.isReg())
-              Params.push_back(getType(MRI.getRegClass(MO.getReg())));
+              Params.push_back(
+                  WebAssembly::regClassToValType(MRI.getRegClass(MO.getReg())));
 
           // call_indirect instructions have a callee operand at the end which
           // doesn't count as a param.