PR target/35225

	* config/sh/sh.c (find_barrier): Don't go past 'from' argument.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@132503 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 4245df6..8c0b6eb 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,10 @@
 2008-02-20  Kaz Kojima  <kkojima@gcc.gnu.org>
 
+       PR target/35225
+       * config/sh/sh.c (find_barrier): Don't go past 'from' argument.
+
+2008-02-20  Kaz Kojima  <kkojima@gcc.gnu.org>
+
        PR target/35190
        * config/sh/sh.md (jump_compact): Disable for crossing jumps.
 

diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index 37abdf6..dccbc1e 100644 (file)
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -3838,6 +3838,7 @@ find_barrier (int num_mova, rtx mova, rtx from)
   rtx barrier_before_mova = 0, found_barrier = 0, good_barrier = 0;
   int si_limit;
   int hi_limit;
+  rtx orig = from;
 
   /* For HImode: range is 510, add 4 because pc counts from address of
      second instruction after this one, subtract 2 for the jump instruction
@@ -4070,7 +4071,8 @@ find_barrier (int num_mova, rtx mova, rtx from)
       /* If we exceeded the range, then we must back up over the last
         instruction we looked at.  Otherwise, we just need to undo the
         NEXT_INSN at the end of the loop.  */
-      if (count_hi > hi_limit || count_si > si_limit)
+      if (PREV_INSN (from) != orig
+         && (count_hi > hi_limit || count_si > si_limit))
        from = PREV_INSN (PREV_INSN (from));
       else
        from = PREV_INSN (from);