re PR rtl-optimization/35604 (Label references are not updated after edge insertion)

	PR rtl-optimization/35604
	* jump.c (redirect_exp_1): Skip the condition of an IF_THEN_ELSE. We
	only want to change jump destinations, not eventual label comparisons.

From-SVN: r136899

1 files changed, 9 insertions, 0 deletions

diff --git a/gcc/jump.c b/gcc/jump.c
index 1aa0c6d..23d183e 100644
--- a/gcc/jump.c
+++ b/gcc/jump.c
@@ -1327,6 +1327,15 @@ redirect_exp_1 (rtx *loc, rtx olabel, rtx nlabel, rtx insn)
       return;
     }
 
+  if (code == IF_THEN_ELSE)
+    {
+      /* Skip the condition of an IF_THEN_ELSE.  We only want to
+         change jump destinations, not eventual label comparisons.  */
+      redirect_exp_1 (&XEXP (x, 1), olabel, nlabel, insn);
+      redirect_exp_1 (&XEXP (x, 2), olabel, nlabel, insn);
+      return;
+    }
+
   fmt = GET_RTX_FORMAT (code);
   for (i = GET_RTX_LENGTH (code) - 1; i >= 0; i--)
     {