From e0cb8d320b9f618f6182de230ed17a6277dd1b74 Mon Sep 17 00:00:00 2001
From: Andi-Bogdan Postelnicu <bpostelnicu@mozilla.com>
Date: Tue, 12 Sep 2017 10:30:17 +0300
Subject: [PATCH] Bug 1398785 - Kill structurally dead code in
 NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN generated by Coverity.
 r=sylvestre

MozReview-Commit-ID: AB3DLFft5aw

--HG--
extra : rebase_source : 6d51c98df43e750d8b21aa8d5de62ab1632afaba
---
 tools/coverity/model.cpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/coverity/model.cpp b/tools/coverity/model.cpp
index fce193761e85..a150df90125b 100644
--- a/tools/coverity/model.cpp
+++ b/tools/coverity/model.cpp
@@ -54,6 +54,14 @@ MOZ_ReportCrash(const char* aStr, const char* aFilename, int aLine)
 
 #define NS_RUNTIMEABORT(msg) __coverity_panic__()
 
+// Kills Structurally dead code (UNREACHABLE)
+#define NS_IMPL_CYCLE_COLLECTION_CAN_SKIP_THIS_BEGIN(_class)                   \
+  NS_IMETHODIMP_(bool)                                                         \
+  NS_CYCLE_COLLECTION_CLASSNAME(_class)::CanSkipThisReal(void* p)              \
+  {                                                                            \
+    __coverity_panic__();                                                      \
+    _class* tmp = DowncastCCParticipant<_class>(p);
+
 int
 GET_JUMP_OFFSET(jsbytecode* pc)
 {