Use builtin trap() to halt execution, rather than abort()

Author: ibuclaw

gcc/d/ChangeLog

@@ -1,3 +1,8 @@
+2015-08-10  Iain Buclaw  <ibuclaw@gdcproject.org>
+
+	* d-elem.cc(HaltExp::toElem): Use __builtin_trap to halt execution,
+	rather than the library abort() call.
+
 2015-08-07  Iain Buclaw  <ibuclaw@gdcproject.org>
 
 	* d-codegen.cc(build_closure): Update signature, update all callers.

gcc/d/d-elem.cc

@@ -1891,8 +1891,7 @@ FuncExp::toElem (IRState *)
 elem *
 HaltExp::toElem (IRState *)
 {
-  // Needs improvement.  Avoid library calls if possible..
-  return d_build_call_nary (builtin_decl_explicit (BUILT_IN_ABORT), 0);
+  return d_build_call_nary (builtin_decl_explicit (BUILT_IN_TRAP), 0);
 }
 
 elem *