Adds instruction sizes for Pseudo{CALL,TAIL}_Medium

Author: heiher

llvm/lib/Target/LoongArch/LoongArchInstrInfo.td

@@ -1484,7 +1484,7 @@ def : Pat<(loongarch_call tglobaladdr:$func), (PseudoCALL tglobaladdr:$func)>;
 def : Pat<(loongarch_call texternalsym:$func), (PseudoCALL texternalsym:$func)>;
 
 // Function call with 'Medium' code model.
-let isCall = 1, Defs = [R1, R20] in
+let isCall = 1, Defs = [R1, R20], Size = 8 in
 def PseudoCALL_MEDIUM : Pseudo<(outs), (ins bare_symbol:$func)>;
 
 let Predicates = [IsLA64] in {
@@ -1534,7 +1534,7 @@ def : Pat<(loongarch_tail (iPTR texternalsym:$dst)),
 
 // Tail call with 'Medium' code model.
 let isCall = 1, isTerminator = 1, isReturn = 1, isBarrier = 1,
-    Uses = [R3], Defs = [R20] in
+    Uses = [R3], Defs = [R20], Size = 8 in
 def PseudoTAIL_MEDIUM : Pseudo<(outs), (ins bare_symbol:$dst)>;
 
 let Predicates = [IsLA64] in {