[SIL] Don't print availability for unreachable/unavailable functions

xymus · xymus · commit 39ee5916bd65 · 2020-10-09T10:40:21.000-07:00
diff --git a/lib/SIL/IR/SILPrinter.cpp b/lib/SIL/IR/SILPrinter.cpp
@@ -2638,7 +2638,8 @@ void SILFunction::print(SILPrintContext &PrintCtx) const {
   if (isAlwaysWeakImported())
     OS << "[weak_imported] ";
   auto availability = getAvailabilityForLinkage();
-  if (!availability.isAlwaysAvailable()) {
+  if (!availability.isAlwaysAvailable() &&
+      !availability.isKnownUnreachable()) {
     auto version = availability.getOSVersion().getLowerEndpoint();
     OS << "[available " << version.getAsString() << "] ";
   }
diff --git a/lib/Serialization/SerializeSIL.cpp b/lib/Serialization/SerializeSIL.cpp
@@ -430,7 +430,8 @@ void SILSerializer::writeSILFunction(const SILFunction &F, bool DeclOnly) {
 
   Optional<llvm::VersionTuple> available;
   auto availability = F.getAvailabilityForLinkage();
-  if (!availability.isAlwaysAvailable()) {
+  if (!availability.isAlwaysAvailable() &&
+      !availability.isKnownUnreachable()) {
     available = availability.getOSVersion().getLowerEndpoint();
   }
   ENCODE_VER_TUPLE(available, available)

Original file line number	Diff line number	Diff line change
`@@ -430,7 +430,8 @@ void SILSerializer::writeSILFunction(const SILFunction &F, bool DeclOnly) {`
`430`	`430`
`431`	`431`	`Optional<llvm::VersionTuple> available;`
`432`	`432`	`auto availability = F.getAvailabilityForLinkage();`
`433`		`- if (!availability.isAlwaysAvailable()) {`
	`433`	`+ if (!availability.isAlwaysAvailable() &&`
	`434`	`+ !availability.isKnownUnreachable()) {`
`434`	`435`	`available = availability.getOSVersion().getLowerEndpoint();`
`435`	`436`	`}`
`436`	`437`	`ENCODE_VER_TUPLE(available, available)`