!fixup account for globals without types.

Author: fhahn

clang/lib/CodeGen/SanitizerMetadata.cpp

@@ -72,7 +72,7 @@ void SanitizerMetadata::reportGlobal(llvm::GlobalVariable *GV,
 
   GV->setSanitizerMetadata(Meta);
 
-  if (!CGM.getLangOpts().Sanitize.has(SanitizerKind::Type) ||
+  if (Ty.isNull() || !CGM.getLangOpts().Sanitize.has(SanitizerKind::Type) ||
       NoSanitizeAttrMask & SanitizerKind::Type)
     return;
 

clang/test/CodeGen/sanitize-type-attr.cpp

@@ -57,6 +57,17 @@ struct SX {
 };
 SX sx;
 
+void consumer(const char *);
+
+void char_caller() {
+  // TYSAN: void @_Z11char_callerv()
+  // TYSAN-NEXT: entry:
+  // TYSAN-NEXT: call void @_Z8consumerPKc(ptr noundef @.str)
+  // TYSAN-NEXT: ret void
+
+  consumer("foo");
+}
+
 // WITHOUT: attributes [[NOATTR]] = { noinline nounwind{{.*}} }
 
 // BL: attributes [[NOATTR]] = { noinline nounwind{{.*}} }