* gcc.dg/sibcall-6.c: Skip in -fPIC mode on X86 ilp32.

[pf3gnuchains/gcc-fork.git] / gcc / cfglayout.c

diff --git a/gcc/cfglayout.c b/gcc/cfglayout.c
index 16438cc..9cc2f8f 100644 (file)
--- a/gcc/cfglayout.c
+++ b/gcc/cfglayout.c
@@ -36,6 +36,7 @@ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
 #include "ggc.h"
 #include "alloc-pool.h"
 #include "flags.h"
+#include "tree-pass.h"
 
 /* Holds the interesting trailing notes for the function.  */
 rtx cfg_layout_function_footer, cfg_layout_function_header;
@@ -330,6 +331,24 @@ insn_locators_initialize (void)
   free_block_changes ();
 }
 
+struct tree_opt_pass pass_insn_locators_initialize =
+{
+  "locators",                           /* name */
+  NULL,                                 /* gate */   
+  insn_locators_initialize,             /* execute */       
+  NULL,                                 /* sub */
+  NULL,                                 /* next */
+  0,                                    /* static_pass_number */
+  0,                                    /* tv_id */
+  0,                                    /* properties_required */
+  0,                                    /* properties_provided */
+  0,                                    /* properties_destroyed */
+  0,                                    /* todo_flags_start */
+  TODO_dump_func,                       /* todo_flags_finish */
+  0                                     /* letter */
+};
+
+
 /* For each lexical block, set BLOCK_NUMBER to the depth at which it is
    found in the block tree.  */
 
@@ -1224,12 +1243,15 @@ end:
    is copied, we do not set the new blocks as header or latch.
 
    Created copies of N_EDGES edges in array EDGES are stored in array NEW_EDGES,
-   also in the same order.  */
+   also in the same order.
+   
+   Newly created basic blocks are put after the basic block AFTER in the
+   instruction stream, and the order of the blocks in BBS array is preserved.  */
 
 void
 copy_bbs (basic_block *bbs, unsigned n, basic_block *new_bbs,
          edge *edges, unsigned num_edges, edge *new_edges,
-         struct loop *base)
+         struct loop *base, basic_block after)
 {
   unsigned i, j;
   basic_block bb, new_bb, dom_bb;
@@ -1240,7 +1262,8 @@ copy_bbs (basic_block *bbs, unsigned n, basic_block *new_bbs,
     {
       /* Duplicate.  */
       bb = bbs[i];
-      new_bb = new_bbs[i] = duplicate_block (bb, NULL);
+      new_bb = new_bbs[i] = duplicate_block (bb, NULL, after);
+      after = new_bb;
       bb->flags |= BB_DUPLICATED;
       /* Add to loop.  */
       add_bb_to_loop (new_bb, bb->loop_father->copy);