* reload1.c (reload): Unshare all rtl after reload is done.

	* simplify-rtx.c (simplify_plus_minus): Do not abort,
	but simply fail if the expression is too complex to simplify.
	(simplify_gen_binary): Handle simplify_plus_minus failures.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@50380 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 5 insertions, 0 deletions

diff --git a/gcc/reload1.c b/gcc/reload1.c
index 7b420a1ea3d..a4a9c0cfa91 100644
--- a/gcc/reload1.c
+++ b/gcc/reload1.c
@@ -1278,6 +1278,11 @@ reload (first, global)
   unused_insn_chains = 0;
   fixup_abnormal_edges ();
 
+  /* Replacing pseudos with their memory equivalents might have
+     created shared rtx.  Subsequent passes would get confused
+     by this, so unshare everything here.  */
+  unshare_all_rtl_again (first);
+
   return failure;
 }