re PR middle-end/33318 (fortran/expr.c:305: internal compiler error: internal consistency failure)

	PR target/33318
	* cse.c (fold_rtx): Avoid invalid sharing.

From-SVN: r128187

1 files changed, 2 insertions, 1 deletions

diff --git a/gcc/cse.c b/gcc/cse.c
index fc4f895..590adfa 100644
--- a/gcc/cse.c
+++ b/gcc/cse.c
@@ -3246,7 +3246,8 @@ fold_rtx (rtx x, rtx insn)
 		      /* If we have a cheaper expression now, use that
 			 and try folding it further, from the top.  */
 		      if (cheapest_simplification != x)
-			return fold_rtx (cheapest_simplification, insn);
+			return fold_rtx (copy_rtx (cheapest_simplification),
+					 insn);
 		    }
 		}