Enlist the FreeBSD-CURRENT users as testers of GCC 2.95.3 Release Candidate #1

1 files changed, 9 insertions, 0 deletions

diff --git a/contrib/gcc/optabs.c b/contrib/gcc/optabs.c
index 2b9091b..bb875ee 100644
--- a/contrib/gcc/optabs.c
+++ b/contrib/gcc/optabs.c
@@ -2887,8 +2887,14 @@ emit_libcall_block (insns, target, result, equiv)
      rtx result;
      rtx equiv;
 {
+  rtx final_dest = target;
   rtx prev, next, first, last, insn;
 
+  /* If this is a reg with REG_USERVAR_P set, then it could possibly turn
+     into a MEM later.  Protect the libcall block from this change.  */
+  if (! REG_P (target) || REG_USERVAR_P (target))
+    target = gen_reg_rtx (GET_MODE (target));
+
   /* look for any CALL_INSNs in this sequence, and attach a REG_EH_REGION
      reg note to indicate that this call cannot throw. (Unless there is
      already a REG_EH_REGION note.) */
@@ -2952,6 +2958,9 @@ emit_libcall_block (insns, target, result, equiv)
       != CODE_FOR_nothing)
     set_unique_reg_note (last, REG_EQUAL, copy_rtx (equiv));
 
+  if (final_dest != target)
+    emit_move_insn (final_dest, target);
+
   if (prev == 0)
     first = get_insns ();
   else