1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/unwind-dw2.c b/gcc/unwind-dw2.c
index 67b8d1cd066..baa4481c747 100644
--- a/gcc/unwind-dw2.c
+++ b/gcc/unwind-dw2.c
@@ -125,6 +125,11 @@ _Unwind_GetGR (struct _Unwind_Context *context, int index)
   int size;
   void *ptr;
 
+#ifdef DWARF_ZERO_REG
+  if (index == DWARF_ZERO_REG)
+    return 0;
+#endif
+
   index = DWARF_REG_TO_UNWIND_COLUMN (index);
   if (index >= (int) sizeof(dwarf_reg_size_table))
     abort ();