commit 07140838a3ee44a6056cacdc78f2930e019107da
author Ian Rogers <irogers@google.com> Tue Sep 30 15:43:59 2014 -0700
committer Ian Rogers <irogers@google.com> Tue Sep 30 15:43:59 2014 -0700
tree 4f344df6ec2612d8ddbf0a00e2b49a39a7501249
parent f9098ea6d7326b4d8de2860d18adf74046b80855

Enable -Wunreachable-code

Caught bugs in DeoptimizeStackVisitor and assemble_x86 SIB encoding.
Add UNREACHABLE macro to document code expected to be unreachable.
Bug: 17731047

Change-Id: I2e363fe5b38a1246354d98be18c902a6031c0b9e

runtime/base/macros.h

diff --git a/runtime/base/macros.h b/runtime/base/macros.h
index fae9271..b66d528 100644
--- a/runtime/base/macros.h
+++ b/runtime/base/macros.h
@@ -179,6 +179,7 @@
 #define WARN_UNUSED __attribute__((warn_unused_result))
 
 template<typename T> void UNUSED(const T&) {}
+#define UNREACHABLE  __builtin_unreachable
 
 // Annotalysis thread-safety analysis support.
 #if defined(__SUPPORT_TS_ANNOTATION__) || defined(__clang__)