ARM: support .watchos_version_min and .tvos_version_min.

These MachO file directives are used by linkers and other tools to provide
compatibility information, much like the existing .ios_version_min and
.macosx_version_min.

llvm-svn: 251569

1 files changed, 14 insertions, 4 deletions

diff --git a/llvm/lib/MC/MCMachOStreamer.cpp b/llvm/lib/MC/MCMachOStreamer.cpp
index 03868b00..52ecf9f 100644
--- a/llvm/lib/MC/MCMachOStreamer.cpp
+++ b/llvm/lib/MC/MCMachOStreamer.cpp
@@ -490,10 +490,20 @@ MCStreamer *llvm::createMachOStreamer(MCContext &Context, MCAsmBackend &MAB,
     unsigned Major, Minor, Update;
     TT.getOSVersion(Major, Minor, Update);
     // If there is a version specified, Major will be non-zero.
-    if (Major)
-      S->EmitVersionMin((TT.isMacOSX() ?
-                        MCVM_OSXVersionMin : MCVM_IOSVersionMin),
-                        Major, Minor, Update);
+    if (Major) {
+      MCVersionMinType VersionType;
+      if (TT.isWatchOS())
+        VersionType = MCVM_WatchOSVersionMin;
+      else if (TT.isTvOS())
+        VersionType = MCVM_TvOSVersionMin;
+      else if (TT.isMacOSX())
+        VersionType = MCVM_OSXVersionMin;
+      else {
+        assert(TT.isiOS() && "Must only be iOS platform left");
+        VersionType = MCVM_IOSVersionMin;
+      }
+      S->EmitVersionMin(VersionType, Major, Minor, Update);
+    }
   }
   if (RelaxAll)
     S->getAssembler().setRelaxAll(true);