Implement UPB_UNREACHABLE for Visual C++.

See https://stackoverflow.com/a/60802890. PiperOrigin-RevId: 493726837
2 years ago · 79abc9f1a1
parent 0980a7b418
commit 79abc9f1a1
1 changed files with 6 additions and 0 deletions
--- a/upb/port/def.inc
+++ b/upb/port/def.inc
@ -171,6 +171,12 @@

 #if defined(__GNUC__) || defined(__clang__)
 #define UPB_UNREACHABLE() do { assert(0); __builtin_unreachable(); } while(0)
+#elif defined(_MSC_VER)
+#define UPB_UNREACHABLE() \
+  do {                    \
+    assert(0);            \
+    __assume(0);          \
+  } while (0)
 #else
 #define UPB_UNREACHABLE() do { assert(0); } while(0)
 #endif