[llvm-cov] Fix MSVC "not all control paths return a value" warning. NFC. (#161150)

RKSimon · web-flow · commit f1b4a3bde510 · 2025-09-29T10:42:34.000+01:00
diff --git a/llvm/tools/llvm-cov/CoverageExporterJson.cpp b/llvm/tools/llvm-cov/CoverageExporterJson.cpp
@@ -118,6 +118,7 @@ json::Value renderCondState(const coverage::MCDCRecord::CondState CondState) {
   case coverage::MCDCRecord::MCDC_False:
     return json::Value(false);
   }
+  llvm_unreachable("Unknown llvm::coverage::MCDCRecord::CondState enum");
 }
 
 json::Array gatherTestVectors(coverage::MCDCRecord &Record) {

Original file line number	Diff line number	Diff line change
`@@ -118,6 +118,7 @@ json::Value renderCondState(const coverage::MCDCRecord::CondState CondState) {`
`118`	`118`	`case coverage::MCDCRecord::MCDC_False:`
`119`	`119`	`return json::Value(false);`
`120`	`120`	`}`
	`121`	`+ llvm_unreachable("Unknown llvm::coverage::MCDCRecord::CondState enum");`
`121`	`122`	`}`
`122`	`123`
`123`	`124`	`json::Array gatherTestVectors(coverage::MCDCRecord &Record) {`