[Sema] Fix a warning

kazutakahirata · kazutakahirata · commit 319d29d21ea9 · 2024-07-25T10:53:03.000-07:00
This patch fixes:

  clang/lib/Sema/SemaChecking.cpp:8220:3: error: default label in
  switch which covers all enumeration values
  [-Werror,-Wcovered-switch-default]
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp
@@ -8217,9 +8217,8 @@ static bool IsInfOrNanFunction(StringRef calleeName, MathCheck Check) {
   case MathCheck::Inf:
     return MatchesAny({"__builtin_inf", "__builtin_inff", "__builtin_infl",
                        "__builtin_inff16", "__builtin_inff128"});
-  default:
-    return false;
   }
+  llvm_unreachable("unknown MathCheck");
 }
 
 void Sema::CheckInfNaNFunction(const CallExpr *Call,

Original file line number	Diff line number	Diff line change
`@@ -8217,9 +8217,8 @@ static bool IsInfOrNanFunction(StringRef calleeName, MathCheck Check) {`
`8217`	`8217`	`case MathCheck::Inf:`
`8218`	`8218`	`return MatchesAny({"__builtin_inf", "__builtin_inff", "__builtin_infl",`
`8219`	`8219`	`"__builtin_inff16", "__builtin_inff128"});`
`8220`		`- default:`
`8221`		`- return false;`
`8222`	`8220`	`}`
	`8221`	`+ llvm_unreachable("unknown MathCheck");`
`8223`	`8222`	`}`
`8224`	`8223`
`8225`	`8224`	`void Sema::CheckInfNaNFunction(const CallExpr *Call,`