re PR middle-end/69915 (ICE: SIGSEGV with -O -ftracer with broken backtrace)

	PR middle-end/69915
	* tree.c (build_vector_from_ctor): Fix handling of VECTOR_CST
	elements.

	* gcc.dg/pr69915.c: New test.

From-SVN: r233664

1 files changed, 1 insertions, 1 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index a265623..b8333d4 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -1749,7 +1749,7 @@ build_vector_from_ctor (tree type, vec<constructor_elt, va_gc> *v)
       else
 	vec[pos++] = value;
     }
-  for (; idx < TYPE_VECTOR_SUBPARTS (type); ++idx)
+  while (pos < TYPE_VECTOR_SUBPARTS (type))
     vec[pos++] = build_zero_cst (TREE_TYPE (type));
 
   return build_vector (type, vec);