[PATCH 08/08] PR/64003 workaround (uninit memory in i386.md)

[David Malcolm]

I suspect this is papering over a real problem, but I've been
applying this workaround locally to keep my valgrind output clean.

gcc/ChangeLog:
	PR/64003
	* final.c (shorten_branches): Allocate insn_lengths with
	XCNEWVEC rather than XNEWVEC; remove subsequent per-element
	initialization.
---
 gcc/final.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/gcc/final.c b/gcc/final.c
index c3805c9..53b0e86 100644
--- a/gcc/final.c
+++ b/gcc/final.c
@@ -1019,7 +1019,7 @@ shorten_branches (rtx_insn *first)
     return;
 
   /* Allocate the rest of the arrays.  */
-  insn_lengths = XNEWVEC (int, max_uid);
+  insn_lengths = XCNEWVEC (int, max_uid);
   insn_lengths_max_uid = max_uid;
   /* Syntax errors can lead to labels being outside of the main insn stream.
      Initialize insn_addresses, so that we get reproducible results.  */
@@ -1127,8 +1127,6 @@ shorten_branches (rtx_insn *first)
     {
       uid = INSN_UID (insn);
 
-      insn_lengths[uid] = 0;
-
       if (LABEL_P (insn))
 	{
 	  int log = LABEL_TO_ALIGNMENT (insn);
-- 
1.8.5.3