Fix warnings in Basic

Sasha Krassovsky · Sasha Krassovsky · commit c5bfa450eebb · 2019-09-13T09:57:48.000-07:00
diff --git a/lib/Basic/FileSystem.cpp b/lib/Basic/FileSystem.cpp
@@ -257,6 +257,7 @@ std::error_code swift::moveFileIfDifferent(const llvm::Twine &source,
     // Files are different; overwrite the destination file.
     return fs::rename(source, destination);
   }
+  llvm_unreachable("Unhandled FileDifference in switch");
 }
 
 llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>
diff --git a/lib/Basic/LangOptions.cpp b/lib/Basic/LangOptions.cpp
@@ -86,6 +86,7 @@ ArrayRef<StringRef> getSupportedConditionalCompilationValues(const PlatformCondi
   case PlatformConditionKind::TargetEnvironment:
     return SupportedConditionalCompilationTargetEnvironments;
   }
+  llvm_unreachable("Unhandled PlatformConditionKind in switch");
 }
 
 PlatformConditionKind suggestedPlatformConditionKind(PlatformConditionKind Kind, const StringRef &V,

Original file line number	Diff line number	Diff line change
`@@ -257,6 +257,7 @@ std::error_code swift::moveFileIfDifferent(const llvm::Twine &source,`
`257`	`257`	`// Files are different; overwrite the destination file.`
`258`	`258`	`return fs::rename(source, destination);`
`259`	`259`	`}`
	`260`	`+ llvm_unreachable("Unhandled FileDifference in switch");`
`260`	`261`	`}`
`261`	`262`
`262`	`263`	`llvm::ErrorOr<std::unique_ptr<llvm::MemoryBuffer>>`
Original file line number	Diff line number	Diff line change
`@@ -86,6 +86,7 @@ ArrayRef<StringRef> getSupportedConditionalCompilationValues(const PlatformCondi`
`86`	`86`	`case PlatformConditionKind::TargetEnvironment:`
`87`	`87`	`return SupportedConditionalCompilationTargetEnvironments;`
`88`	`88`	`}`
	`89`	`+ llvm_unreachable("Unhandled PlatformConditionKind in switch");`
`89`	`90`	`}`
`90`	`91`
`91`	`92`	`PlatformConditionKind suggestedPlatformConditionKind(PlatformConditionKind Kind, const StringRef &V,`