contrib/gcc/cfgrtl.c

172 	     blocks) we can delete a label that's a target of the vector
363    to post-process the stream to remove empty blocks, loops, ranges, etc.  */
564       /* Detect basic blocks with nothing but a label.  This can happen
573   /* Delete the basic block note and handle blocks containing just that
619      hanging out between the two blocks.  */
644   /* If we are partitioning hot/cold basic blocks, we don't want to
649      be optimizable (or blocks that appear to be mergeable), but which really
657   /* There must be exactly one edge in between the blocks.  */
704   /* If we are partitioning hot/cold basic blocks, we don't want to
709      be optimizable (or blocks that appear to be mergeable), but which really
961    expense of adding new instructions or reordering basic blocks.
1202      blocks by nopping out blocks, leaving multiple BARRIERs between here
1293   /* If this is a fall through edge to the exit block, the blocks might be
1334 /* Queue instructions for insertion on an edge between two basic blocks.
1335    The new instructions and basic blocks (if any) will not appear in the
1508   sbitmap blocks;
1531   blocks = sbitmap_alloc (last_basic_block);
1532   sbitmap_zero (blocks);
1536 	SET_BIT (blocks, bb->index);
1542   find_many_sub_basic_blocks (blocks);
1543   sbitmap_free (blocks);
1554   sbitmap blocks;
1577   blocks = sbitmap_alloc (last_basic_block);
1578   sbitmap_zero (blocks);
1582 	SET_BIT (blocks, bb->index);
1588   find_many_sub_basic_blocks (blocks);
1589   sbitmap_free (blocks);
1677 	    fprintf (outf, ";; Insn is in multiple basic blocks\n");
1750    - overlapping of basic blocks
1751    - headers of basic blocks (the NOTE_INSN_BASIC_BLOCK note)
1752    - tails of basic blocks (ensure that boundary is necessary)
1758    (reachability of basic blocks, life information, etc. etc.).  */
1804 	      error ("insn %d is in multiple basic blocks (%d and %d)",
1824   /* Now check the basic blocks (boundaries etc.) */
1965 	/* Do checks for empty blocks here.  */
1998    - check that all insns are in the basic blocks
2001    - check that all fallthru edge points to the adjacent blocks.  */
2050 		("verify_flow_info: Incorrect blocks for fallthru %i->%i",
2078 	    internal_error ("basic blocks not laid down consecutively");
2342 /* Search all basic blocks for potentially dead edges and purge them.  Return
2552 /* Return true when blocks A and B can be safely merged.  */
2556   /* If we are partitioning hot/cold basic blocks, we don't want to
2561      be optimizable (or blocks that appear to be mergeable), but which really
2569   /* There must be exactly one edge in between the blocks.  */
2584 /* Merge block A and B.  The blocks must be mergeable.  */
2619   /* In the case basic blocks are not adjacent, move them around.  */
2670     fprintf (dump_file, "Merged blocks %d and %d.\n",
2756    calls, volatile inline assembly in the bitmap of blocks specified by
2757    BLOCKS or to the whole CFG if BLOCKS is zero.  Return the number of blocks
2764 rtl_flow_call_edges_add (sbitmap blocks)
2774   if (! blocks)
2777     check_last_block = TEST_BIT (blocks, EXIT_BLOCK_PTR->prev_bb->index);
2827       if (blocks && !TEST_BIT (blocks, i))
2859 		 and renumber the existing basic blocks.  */