#include "flags.h"
#include "cgraph.h"
#include "diagnostic.h"
+#include "gimple-pretty-print.h"
#include "timevar.h"
#include "params.h"
#include "fibheap.h"
/* Estimate self time of the function after inlining WHAT into TO. */
-static int
+static inline int
cgraph_estimate_size_after_inlining (int times, struct cgraph_node *to,
struct cgraph_node *what)
{
- int size = (what->global.size - inline_summary (what)->size_inlining_benefit) * times + to->global.size;
+ int size = ((what->global.size - inline_summary (what)->size_inlining_benefit)
+ * times + to->global.size);
gcc_assert (size >= 0);
return size;
}
We call recursive inlining all cases where same function appears more than
once in the single recursion nest path in the inline graph. */
-static bool
+static inline bool
cgraph_recursive_inlining_p (struct cgraph_node *to,
struct cgraph_node *what,
cgraph_inline_failed_t *reason)
return badness;
}
+/* Recompute badness of EDGE and update its key in HEAP if needed. */
+static void
+update_edge_key (fibheap_t heap, struct cgraph_edge *edge)
+{
+ int badness = cgraph_edge_badness (edge, false);
+ if (edge->aux)
+ {
+ fibnode_t n = (fibnode_t) edge->aux;
+ gcc_checking_assert (n->data == edge);
+
+ /* fibheap_replace_key only decrease the keys.
+ When we increase the key we do not update heap
+ and instead re-insert the element once it becomes
+ a minium of heap. */
+ if (badness < n->key)
+ {
+ fibheap_replace_key (heap, n, badness);
+ gcc_checking_assert (n->key == badness);
+ }
+ }
+ else
+ edge->aux = fibheap_insert (heap, badness, edge);
+}
+
/* Recompute heap nodes for each of caller edge. */
static void
bitmap_set_bit (updated_nodes, node->uid);
node->global.estimated_growth = INT_MIN;
- if (!node->local.inlinable)
+ /* See if there is something to do. */
+ for (edge = node->callers; edge; edge = edge->next_caller)
+ if (edge->inline_failed)
+ break;
+ if (!edge)
return;
/* Prune out edges we won't inline into anymore. */
if (!cgraph_default_inline_p (node, &failed_reason))
{
- for (edge = node->callers; edge; edge = edge->next_caller)
+ for (; edge; edge = edge->next_caller)
if (edge->aux)
{
fibheap_delete_node (heap, (fibnode_t) edge->aux);
return;
}
- for (edge = node->callers; edge; edge = edge->next_caller)
+ for (; edge; edge = edge->next_caller)
if (edge->inline_failed)
+ update_edge_key (heap, edge);
+}
+
+/* Recompute heap nodes for each uninlined call.
+ This is used when we know that edge badnesses are going only to increase
+ (we introduced new call site) and thus all we need is to insert newly
+ created edges into heap. */
+
+static void
+update_callee_keys (fibheap_t heap, struct cgraph_node *node,
+ bitmap updated_nodes)
+{
+ struct cgraph_edge *e = node->callees;
+ node->global.estimated_growth = INT_MIN;
+
+ if (!e)
+ return;
+ while (true)
+ if (!e->inline_failed && e->callee->callees)
+ e = e->callee->callees;
+ else
{
- int badness = cgraph_edge_badness (edge, false);
- if (edge->aux)
+ if (e->inline_failed
+ && e->callee->local.inlinable
+ && !bitmap_bit_p (updated_nodes, e->callee->uid))
{
- fibnode_t n = (fibnode_t) edge->aux;
- gcc_assert (n->data == edge);
- if (n->key == badness)
- continue;
-
- /* fibheap_replace_key only increase the keys. */
- if (badness < n->key)
+ node->global.estimated_growth = INT_MIN;
+ /* If function becomes uninlinable, we need to remove it from the heap. */
+ if (!cgraph_default_inline_p (e->callee, &e->inline_failed))
+ update_caller_keys (heap, e->callee, updated_nodes);
+ else
+ /* Otherwise update just edge E. */
+ update_edge_key (heap, e);
+ }
+ if (e->next_callee)
+ e = e->next_callee;
+ else
+ {
+ do
{
- fibheap_replace_key (heap, n, badness);
- gcc_assert (n->key == badness);
- continue;
+ if (e->caller == node)
+ return;
+ e = e->caller->callers;
}
- fibheap_delete_node (heap, (fibnode_t) edge->aux);
+ while (!e->next_callee);
+ e = e->next_callee;
}
- edge->aux = fibheap_insert (heap, badness, edge);
}
}
-/* Recompute heap nodes for each of caller edges of each of callees. */
+/* Recompute heap nodes for each of caller edges of each of callees.
+ Walk recursively into all inline clones. */
static void
-update_callee_keys (fibheap_t heap, struct cgraph_node *node,
- bitmap updated_nodes)
+update_all_callee_keys (fibheap_t heap, struct cgraph_node *node,
+ bitmap updated_nodes)
{
- struct cgraph_edge *e;
+ struct cgraph_edge *e = node->callees;
node->global.estimated_growth = INT_MIN;
- for (e = node->callees; e; e = e->next_callee)
- if (e->inline_failed)
- update_caller_keys (heap, e->callee, updated_nodes);
- else if (!e->inline_failed)
- update_callee_keys (heap, e->callee, updated_nodes);
+ if (!e)
+ return;
+ while (true)
+ if (!e->inline_failed && e->callee->callees)
+ e = e->callee->callees;
+ else
+ {
+ if (e->inline_failed)
+ update_caller_keys (heap, e->callee, updated_nodes);
+ if (e->next_callee)
+ e = e->next_callee;
+ else
+ {
+ do
+ {
+ if (e->caller == node)
+ return;
+ e = e->caller->callers;
+ }
+ while (!e->next_callee);
+ e = e->next_callee;
+ }
+ }
}
/* Enqueue all recursive calls from NODE into priority queue depending on
struct cgraph_edge *edge = VEC_pop (cgraph_edge_p, new_edges);
gcc_assert (!edge->aux);
- edge->aux = fibheap_insert (heap, cgraph_edge_badness (edge, false), edge);
+ if (edge->callee->local.inlinable
+ && cgraph_default_inline_p (edge->callee, &edge->inline_failed))
+ edge->aux = fibheap_insert (heap, cgraph_edge_badness (edge, false), edge);
}
}
int old_size = overall_size;
struct cgraph_node *where, *callee;
int badness = fibheap_min_key (heap);
+ int current_badness;
int growth;
cgraph_inline_failed_t not_good = CIF_OK;
edge->aux = NULL;
if (!edge->inline_failed)
continue;
-#ifdef ENABLE_CHECKING
- gcc_assert (cgraph_edge_badness (edge, false) == badness);
-#endif
+
+ /* When updating the edge costs, we only decrease badness in the keys.
+ When the badness increase, we keep the heap as it is and re-insert
+ key now. */
+ current_badness = cgraph_edge_badness (edge, false);
+ gcc_assert (current_badness >= badness);
+ if (current_badness != badness)
+ {
+ edge->aux = fibheap_insert (heap, current_badness, edge);
+ continue;
+ }
+
callee = edge->callee;
growth = (cgraph_estimate_size_after_inlining (1, edge->caller, edge->callee)
continue;
if (flag_indirect_inlining)
add_new_edges_to_heap (heap, new_indirect_edges);
- update_callee_keys (heap, where, updated_nodes);
+ update_all_callee_keys (heap, where, updated_nodes);
}
else
{
continue;
}
callee = edge->callee;
+ gcc_checking_assert (!callee->global.inlined_to);
cgraph_mark_inline_edge (edge, true, &new_indirect_edges);
if (flag_indirect_inlining)
add_new_edges_to_heap (heap, new_indirect_edges);
- update_callee_keys (heap, callee, updated_nodes);
+ /* We inlined last offline copy to the body. This might lead
+ to callees of function having fewer call sites and thus they
+ may need updating. */
+ if (callee->global.inlined_to)
+ update_all_callee_keys (heap, callee, updated_nodes);
+ else
+ update_callee_keys (heap, edge->callee, updated_nodes);
}
where = edge->caller;
if (where->global.inlined_to)
if (!edge->inline_failed)
continue;
#ifdef ENABLE_CHECKING
- gcc_assert (cgraph_edge_badness (edge, false) == badness);
+ gcc_assert (cgraph_edge_badness (edge, false) >= badness);
#endif
if (dump_file)
{
unsigned int todo = 0;
int iterations = 0;
- if (sorrycount || errorcount)
+ if (seen_error ())
return 0;
if (!optimize
bool rhs_free = false;
bool lhs_free = false;
- while (handled_component_p (inner_lhs) || TREE_CODE (inner_lhs) == INDIRECT_REF)
+ while (handled_component_p (inner_lhs)
+ || TREE_CODE (inner_lhs) == MEM_REF)
inner_lhs = TREE_OPERAND (inner_lhs, 0);
while (handled_component_p (inner_rhs)
- || TREE_CODE (inner_rhs) == ADDR_EXPR || TREE_CODE (inner_rhs) == INDIRECT_REF)
+ || TREE_CODE (inner_rhs) == ADDR_EXPR
+ || TREE_CODE (inner_rhs) == MEM_REF)
inner_rhs = TREE_OPERAND (inner_rhs, 0);
|| (TREE_CODE (inner_lhs) == SSA_NAME
&& TREE_CODE (SSA_NAME_VAR (inner_lhs)) == RESULT_DECL))
lhs_free = true;
- if (lhs_free && (is_gimple_reg (rhs) || is_gimple_min_invariant (rhs)))
+ if (lhs_free
+ && (is_gimple_reg (rhs) || is_gimple_min_invariant (rhs)))
rhs_free = true;
if (lhs_free && rhs_free)
return true;
static void
inline_indirect_intraprocedural_analysis (struct cgraph_node *node)
{
- ipa_initialize_node_params (node);
- ipa_detect_param_modifications (node);
- ipa_analyze_params_uses (node);
- ipa_compute_jump_functions (node);
-
- if (dump_file)
+ ipa_analyze_node (node);
+ if (dump_file && (dump_flags & TDF_DETAILS))
{
ipa_print_node_params (dump_file, node);
ipa_print_node_jump_functions (dump_file, node);
{
unsigned int todo = 0;
struct cgraph_edge *e;
+ bool inline_p = false;
/* FIXME: Currently the passmanager is adding inline transform more than once to some
clones. This needs revisiting after WPA cleanups. */
save_inline_function_body (node);
for (e = node->callees; e; e = e->next_callee)
- if (!e->inline_failed || warn_inline)
- break;
+ {
+ cgraph_redirect_edge_call_stmt_to_callee (e);
+ if (!e->inline_failed || warn_inline)
+ inline_p = true;
+ }
- if (e)
+ if (inline_p)
{
timevar_push (TV_INTEGRATION);
todo = optimize_inline_calls (current_function_decl);
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