Fix code review comments

Author: AmrDeveloper

clang/lib/CIR/CodeGen/CIRGenBuiltin.cpp

@@ -78,6 +78,8 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
   assert(!cir::MissingFeatures::builtinCallMathErrno());
   assert(!cir::MissingFeatures::builtinCall());
 
+  mlir::Location loc = getLoc(e->getExprLoc());
+
   switch (builtinIDIfNoAsmLabel) {
   default:
     break;
@@ -88,7 +90,7 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
       return RValue::get(nullptr);
 
     mlir::Value argValue = emitCheckedArgForAssume(e->getArg(0));
-    builder.create<cir::AssumeOp>(getLoc(e->getExprLoc()), argValue);
+    builder.create<cir::AssumeOp>(loc, argValue);
     return RValue::get(nullptr);
   }
 
@@ -98,8 +100,6 @@ RValue CIRGenFunction::emitBuiltinExpr(const GlobalDecl &gd, unsigned builtinID,
     mlir::Value complex = builder.createComplexCreate(loc, real, imag);
     return RValue::get(complex);
   }
-    default:
-    break;
   }
 
   cgm.errorNYI(e->getSourceRange(), "unimplemented builtin call");