#include "obstack.h"
#include "expr.h"
#include "params.h"
-#include "toplev.h"
+#include "diagnostic-core.h"
+#include "toplev.h" /* user_defined_section_attribute */
#include "tree-pass.h"
#include "df.h"
+#include "bb-reorder.h"
/* The number of rounds. In most cases there will only be 4 rounds, but
when partitioning hot and cold basic blocks into separate sections of
#endif
+struct target_bb_reorder default_target_bb_reorder;
+#if SWITCHABLE_TARGET
+struct target_bb_reorder *this_target_bb_reorder = &default_target_bb_reorder;
+#endif
+
+#define uncond_jump_length \
+ (this_target_bb_reorder->x_uncond_jump_length)
+
/* Branch thresholds in thousandths (per mille) of the REG_BR_PROB_BASE. */
static int branch_threshold[N_ROUNDS] = {400, 200, 100, 0, 0};
block the edge destination is not duplicated while connecting traces. */
#define DUPLICATION_THRESHOLD 100
-/* Length of unconditional jump instruction. */
-static int uncond_jump_length;
-
/* Structure to hold needed information for each basic block. */
typedef struct bbro_basic_block_data_def
{
if (src && (src != ENTRY_BLOCK_PTR))
{
- if (!JUMP_P (BB_END (src)) && !block_ends_with_call_p (src))
+ if (!JUMP_P (BB_END (src))
+ && !block_ends_with_call_p (src)
+ && !can_throw_internal (BB_END (src)))
/* bb just falls through. */
{
/* make sure there's only one successor */
src->il.rtl->footer = unlink_insn_chain (barrier, barrier);
/* Mark edge as non-fallthru. */
crossing_edges[i]->flags &= ~EDGE_FALLTHRU;
- } /* end: 'if (GET_CODE ... ' */
- } /* end: 'if (src && src->index...' */
- } /* end: 'if (dest && dest->index...' */
+ } /* end: 'if (!JUMP_P ... ' */
+ } /* end: 'if (src && src !=...' */
+ } /* end: 'if (dest && dest !=...' */
} /* end: 'if (crossing_edges[i]...' */
} /* end for loop */
}
fall_thru = succ2;
cond_jump = succ1;
}
- else if (!fall_thru && succ1 && block_ends_with_call_p (cur_bb))
- {
- edge e;
- edge_iterator ei;
-
- /* Find EDGE_CAN_FALLTHRU edge. */
- FOR_EACH_EDGE (e, ei, cur_bb->succs)
- if (e->flags & EDGE_CAN_FALLTHRU)
- {
- fall_thru = e;
- break;
- }
- }
+ else if (succ1
+ && (block_ends_with_call_p (cur_bb)
+ || can_throw_internal (BB_END (cur_bb))))
+ {
+ edge e;
+ edge_iterator ei;
+
+ /* Find EDGE_CAN_FALLTHRU edge. */
+ FOR_EACH_EDGE (e, ei, cur_bb->succs)
+ if (e->flags & EDGE_CAN_FALLTHRU)
+ {
+ fall_thru = e;
+ break;
+ }
+ }
if (fall_thru && (fall_thru->dest != EXIT_BLOCK_PTR))
{