1 files changed, 0 insertions, 230 deletions

diff --git a/toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99486.patch b/toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99486.patch
deleted file mode 100644
index e6b58ac872..0000000000
--- a/toolchain-layer/recipes-devtools/gcc/gcc-4.5/linaro/gcc-4.5-linaro-r99486.patch
+++ /dev/null
@@ -1,230 +0,0 @@
-2011-03-09  Bernd Schmidt  <bernds@codesourcery.com>
-
-        Issue #10649
-        gcc/
-        * dwarf2out.c (dwarf2out_begin_epilogue): Accept simplejumps
-        as well as returnjumps.
-        * cfganal.c (set_edge_can_fallthru_flag): Revert previous change
-        that tried to keep epilogue blocks adjacent.
-
-2011-02-03  Bernd Schmidt  <bernds@codesourcery.com>
-
-        gcc/
-        * function.c (prepare_shrink_wrap): New function.
-        (thread_prologue_and_epilogue_insns): Call it.
-
-=== modified file 'gcc/cfganal.c'
---- old/gcc/cfganal.c   2011-02-08 10:51:58 +0000
-+++ new/gcc/cfganal.c   2011-03-10 14:55:10 +0000
-@@ -271,37 +271,6 @@
-       EDGE_SUCC (bb, 0)->flags |= EDGE_CAN_FALLTHRU;
-       EDGE_SUCC (bb, 1)->flags |= EDGE_CAN_FALLTHRU;
-     }
--  /* dwarf2out expects that a NOTE_INSN_EPILOGUE_BEGIN is always paired
--     with a return or a sibcall.  Ensure that this remains the case if
--     they are in different basic blocks.  */
--  FOR_EACH_BB (bb)
--    {
--      edge e;
--      edge_iterator ei;
--      rtx insn, end;
--
--      end = BB_END (bb);
--      FOR_BB_INSNS (bb, insn)
--       if (GET_CODE (insn) == NOTE
--           && NOTE_KIND (insn) == NOTE_INSN_EPILOGUE_BEG
--           && !(CALL_P (end) && SIBLING_CALL_P (end))
--           && !returnjump_p (end))
--         {
--           basic_block other_bb = NULL;
--           FOR_EACH_EDGE (e, ei, bb->succs)
--             {
--               if (e->flags & EDGE_FALLTHRU)
--                 other_bb = e->dest;
--               else
--                 e->flags &= ~EDGE_CAN_FALLTHRU;
--             }
--           FOR_EACH_EDGE (e, ei, other_bb->preds)
--             {
--               if (!(e->flags & EDGE_FALLTHRU))
--                 e->flags &= ~EDGE_CAN_FALLTHRU;
--             }     
--         }
--    }
- }
- 
- /* Find unreachable blocks.  An unreachable block will have 0 in
-
-=== modified file 'gcc/dwarf2out.c'
---- old/gcc/dwarf2out.c 2011-02-08 10:51:58 +0000
-+++ new/gcc/dwarf2out.c 2011-03-10 14:55:10 +0000
-@@ -2782,10 +2782,10 @@
-   dwarf2out_frame_debug_expr (insn, label);
- }
- 
--/* Determine if we need to save and restore CFI information around this
--   epilogue.  If SIBCALL is true, then this is a sibcall epilogue.  If
--   we do need to save/restore, then emit the save now, and insert a
--   NOTE_INSN_CFA_RESTORE_STATE at the appropriate place in the stream.  */
-+/* Determine if we need to save and restore CFI information around
-+   this epilogue.  If we do need to save/restore, then emit the save
-+   now, and insert a NOTE_INSN_CFA_RESTORE_STATE at the appropriate
-+   place in the stream.  */
- 
- void
- dwarf2out_begin_epilogue (rtx insn)
-@@ -2800,8 +2800,10 @@
-       if (!INSN_P (i))
-        continue;
- 
--      /* Look for both regular and sibcalls to end the block.  */
--      if (returnjump_p (i))
-+      /* Look for both regular and sibcalls to end the block.  Various
-+        optimization passes may cause us to jump to a common epilogue
-+        tail, so we also accept simplejumps.  */
-+      if (returnjump_p (i) || simplejump_p (i))
-        break;
-       if (CALL_P (i) && SIBLING_CALL_P (i))
-        break;
-
-=== modified file 'gcc/function.c'
---- old/gcc/function.c  2011-02-08 10:51:58 +0000
-+++ new/gcc/function.c  2011-03-10 14:55:10 +0000
-@@ -5038,6 +5038,127 @@
-       return true;
-   return false;
- }
-+
-+/* Look for sets of call-saved registers in the first block of the
-+   function, and move them down into successor blocks if the register
-+   is used only on one path.  This exposes more opportunities for
-+   shrink-wrapping.
-+   These kinds of sets often occur when incoming argument registers are
-+   moved to call-saved registers because their values are live across
-+   one or more calls during the function.  */
-+
-+static void
-+prepare_shrink_wrap (basic_block entry_block)
-+{
-+  rtx insn, curr;
-+  FOR_BB_INSNS_SAFE (entry_block, insn, curr)
-+    {
-+      basic_block next_bb;
-+      edge e, live_edge;
-+      edge_iterator ei;
-+      rtx set, scan;
-+      unsigned destreg, srcreg;
-+
-+      if (!NONDEBUG_INSN_P (insn))
-+       continue;
-+      set = single_set (insn);
-+      if (!set)
-+       continue;
-+
-+      if (!REG_P (SET_SRC (set)) || !REG_P (SET_DEST (set)))
-+       continue;
-+      srcreg = REGNO (SET_SRC (set));
-+      destreg = REGNO (SET_DEST (set));
-+      if (hard_regno_nregs[srcreg][GET_MODE (SET_SRC (set))] > 1
-+         || hard_regno_nregs[destreg][GET_MODE (SET_DEST (set))] > 1)
-+       continue;
-+
-+      next_bb = entry_block;
-+      scan = insn;
-+
-+      for (;;)
-+       {
-+         live_edge = NULL;
-+         FOR_EACH_EDGE (e, ei, next_bb->succs)
-+           {
-+             if (REGNO_REG_SET_P (df_get_live_in (e->dest), destreg))
-+               {
-+                 if (live_edge)
-+                   {
-+                     live_edge = NULL;
-+                     break;
-+                   }
-+                 live_edge = e;
-+               }
-+           }
-+         if (!live_edge)
-+           break;
-+         /* We can sometimes encounter dead code.  Don't try to move it
-+            into the exit block.  */
-+         if (live_edge->dest == EXIT_BLOCK_PTR)
-+           break;
-+         if (EDGE_COUNT (live_edge->dest->preds) > 1)
-+           break;
-+         while (scan != BB_END (next_bb))
-+           {
-+             scan = NEXT_INSN (scan);
-+             if (NONDEBUG_INSN_P (scan))
-+               {
-+                 rtx link;
-+                 HARD_REG_SET set_regs;
-+
-+                 CLEAR_HARD_REG_SET (set_regs);
-+                 note_stores (PATTERN (scan), record_hard_reg_sets,
-+                              &set_regs);
-+                 if (CALL_P (scan))
-+                   IOR_HARD_REG_SET (set_regs, call_used_reg_set);
-+                 for (link = REG_NOTES (scan); link; link = XEXP (link, 1))
-+                   if (REG_NOTE_KIND (link) == REG_INC)
-+                     record_hard_reg_sets (XEXP (link, 0), NULL, &set_regs);
-+
-+                 if (TEST_HARD_REG_BIT (set_regs, srcreg)
-+                     || reg_referenced_p (SET_DEST (set),
-+                                          PATTERN (scan)))
-+                   {
-+                     scan = NULL_RTX;
-+                     break;
-+                   }
-+                 if (CALL_P (scan))
-+                   {
-+                     rtx link = CALL_INSN_FUNCTION_USAGE (scan);
-+                     while (link)
-+                       {
-+                         rtx tmp = XEXP (link, 0);
-+                         if (GET_CODE (tmp) == USE
-+                             && reg_referenced_p (SET_DEST (set), tmp))
-+                           break;
-+                         link = XEXP (link, 1);
-+                       }
-+                     if (link)
-+                       {
-+                         scan = NULL_RTX;
-+                         break;
-+                       }
-+                   }
-+               }
-+           }
-+         if (!scan)
-+           break;
-+         next_bb = live_edge->dest;
-+       }
-+
-+      if (next_bb != entry_block)
-+       {
-+         rtx after = BB_HEAD (next_bb);
-+         while (!NOTE_P (after)
-+                || NOTE_KIND (after) != NOTE_INSN_BASIC_BLOCK)
-+           after = NEXT_INSN (after);
-+         emit_insn_after (PATTERN (insn), after);
-+         delete_insn (insn);
-+       }
-+    }
-+}
-+
- #endif
- 
- #ifdef HAVE_return
-@@ -5215,6 +5336,8 @@
-       bitmap_head bb_antic_flags;
-       bitmap_head bb_on_list;
- 
-+      prepare_shrink_wrap (entry_edge->dest);
-+
-       bitmap_initialize (&bb_antic_flags, &bitmap_default_obstack);
-       bitmap_initialize (&bb_on_list, &bitmap_default_obstack);
- 
-