#include "lto-streamer.h"
#include "gcov-io.h"
-/* Cgraph streaming is organized as set of record whose type
- is indicated by a tag. */
-enum LTO_cgraph_tags
-{
- /* Must leave 0 for the stopper. */
-
- /* Cgraph node without body available. */
- LTO_cgraph_unavail_node = 1,
- /* Cgraph node with function body. */
- LTO_cgraph_analyzed_node,
- /* Cgraph edges. */
- LTO_cgraph_edge,
- LTO_cgraph_indirect_edge
-};
-
/* Create a new cgraph encoder. */
lto_cgraph_encoder_t
return ref;
}
-#define LCC_NOT_FOUND (-1)
/* Look up NODE in encoder. Return NODE's reference if it has been encoded
or LCC_NOT_FOUND if it is not there. */
intptr_t ref;
struct bitpack_d *bp;
- if (edge->indirect_unknown_callee)
- lto_output_uleb128_stream (ob->main_stream, LTO_cgraph_indirect_edge);
- else
- lto_output_uleb128_stream (ob->main_stream, LTO_cgraph_edge);
+ lto_output_uleb128_stream (ob->main_stream, LTO_cgraph_edge);
ref = lto_cgraph_encoder_lookup (encoder, edge->caller);
gcc_assert (ref != LCC_NOT_FOUND);
lto_output_sleb128_stream (ob->main_stream, ref);
- if (!edge->indirect_unknown_callee)
- {
- ref = lto_cgraph_encoder_lookup (encoder, edge->callee);
- gcc_assert (ref != LCC_NOT_FOUND);
- lto_output_sleb128_stream (ob->main_stream, ref);
- }
+ ref = lto_cgraph_encoder_lookup (encoder, edge->callee);
+ gcc_assert (ref != LCC_NOT_FOUND);
+ lto_output_sleb128_stream (ob->main_stream, ref);
lto_output_sleb128_stream (ob->main_stream, edge->count);
bp_pack_value (bp, edge->inline_failed, HOST_BITS_PER_INT);
bp_pack_value (bp, edge->frequency, HOST_BITS_PER_INT);
bp_pack_value (bp, edge->loop_nest, 30);
- bp_pack_value (bp, edge->indirect_inlining_edge, 1);
+ bp_pack_value (bp, edge->indirect_call, 1);
bp_pack_value (bp, edge->call_stmt_cannot_inline_p, 1);
bp_pack_value (bp, edge->can_throw_external, 1);
lto_output_bitpack (ob->main_stream, bp);
{
unsigned int tag;
struct bitpack_d *bp;
+ unsigned local, externally_visible, inlinable, analyzed;
bool boundary_p, wrote_decl_p;
intptr_t ref;
bool in_other_partition = false;
boundary_p = !cgraph_node_in_set_p (node, set);
wrote_decl_p = bitmap_bit_p (written_decls, DECL_UID (node->decl));
- if (node->analyzed && !boundary_p)
- tag = LTO_cgraph_analyzed_node;
- else
+ switch (cgraph_function_body_availability (node))
+ {
+ case AVAIL_NOT_AVAILABLE:
+ tag = LTO_cgraph_unavail_node;
+ break;
+
+ case AVAIL_AVAILABLE:
+ case AVAIL_LOCAL:
+ tag = LTO_cgraph_avail_node;
+ break;
+
+ case AVAIL_OVERWRITABLE:
+ tag = LTO_cgraph_overwritable_node;
+ break;
+
+ default:
+ gcc_unreachable ();
+ }
+
+ if (boundary_p)
tag = LTO_cgraph_unavail_node;
lto_output_uleb128_stream (ob->main_stream, tag);
+ local = node->local.local;
+ externally_visible = node->local.externally_visible;
+ inlinable = node->local.inlinable;
+ analyzed = node->analyzed;
+
/* In WPA mode, we only output part of the call-graph. Also, we
fake cgraph node attributes. There are two cases that we care.
Cherry-picked nodes: These are nodes we pulled from other
translation units into SET during IPA-inlining. We make them as
local static nodes to prevent clashes with other local statics. */
- if (boundary_p && node->analyzed)
+ if (boundary_p)
{
/* Inline clones can not be part of boundary.
gcc_assert (!node->global.inlined_to);
needs a bit extra work and will be promplty done by cgraph_remove_node
after reading back. */
in_other_partition = 1;
+ analyzed = 0;
}
lto_output_uleb128_stream (ob->main_stream, wrote_decl_p);
lto_output_sleb128_stream (ob->main_stream, node->count);
bp = bitpack_create ();
- bp_pack_value (bp, node->local.local, 1);
- bp_pack_value (bp, node->local.externally_visible, 1);
+ bp_pack_value (bp, local, 1);
+ bp_pack_value (bp, externally_visible, 1);
bp_pack_value (bp, node->local.finalized, 1);
- bp_pack_value (bp, node->local.inlinable, 1);
+ bp_pack_value (bp, inlinable, 1);
bp_pack_value (bp, node->local.disregard_inline_limits, 1);
bp_pack_value (bp, node->local.redefined_extern_inline, 1);
+ bp_pack_value (bp, node->local.for_functions_valid, 1);
bp_pack_value (bp, node->local.vtable_method, 1);
bp_pack_value (bp, node->needed, 1);
bp_pack_value (bp, node->address_taken, 1);
bp_pack_value (bp, node->abstract_and_needed, 1);
- bp_pack_value (bp, tag == LTO_cgraph_analyzed_node
- && reachable_from_other_partition_p (node, set), 1);
+ bp_pack_value (bp, node->reachable, 1);
+ bp_pack_value (bp, analyzed && reachable_from_other_partition_p (node, set), 1);
bp_pack_value (bp, node->lowered, 1);
+ bp_pack_value (bp, analyzed, 1);
bp_pack_value (bp, in_other_partition, 1);
+ bp_pack_value (bp, node->process, 1);
bp_pack_value (bp, node->alias, 1);
bp_pack_value (bp, node->finalized_by_frontend, 1);
- bp_pack_value (bp, node->frequency, 2);
lto_output_bitpack (ob->main_stream, bp);
bitpack_delete (bp);
- if (tag == LTO_cgraph_analyzed_node)
+ if (tag != LTO_cgraph_unavail_node)
{
lto_output_sleb128_stream (ob->main_stream,
node->local.inline_summary.estimated_self_stack_size);
node->local.inline_summary.self_time);
lto_output_sleb128_stream (ob->main_stream,
node->local.inline_summary.time_inlining_benefit);
- if (node->global.inlined_to)
- {
- ref = lto_cgraph_encoder_lookup (encoder, node->global.inlined_to);
- gcc_assert (ref != LCC_NOT_FOUND);
- }
- else
- ref = LCC_NOT_FOUND;
+ }
- lto_output_sleb128_stream (ob->main_stream, ref);
+ /* FIXME lto: Outputting global info is not neccesary until after
+ inliner was run. Global structure holds results of propagation
+ done by inliner. */
+ lto_output_sleb128_stream (ob->main_stream,
+ node->global.estimated_stack_size);
+ lto_output_sleb128_stream (ob->main_stream,
+ node->global.stack_frame_offset);
+ if (node->global.inlined_to && !boundary_p)
+ {
+ ref = lto_cgraph_encoder_lookup (encoder, node->global.inlined_to);
+ gcc_assert (ref != LCC_NOT_FOUND);
}
+ else
+ ref = LCC_NOT_FOUND;
+ lto_output_sleb128_stream (ob->main_stream, ref);
- if (node->same_comdat_group && !boundary_p)
+ lto_output_sleb128_stream (ob->main_stream, node->global.time);
+ lto_output_sleb128_stream (ob->main_stream, node->global.size);
+ lto_output_sleb128_stream (ob->main_stream,
+ node->global.estimated_growth);
+ lto_output_uleb128_stream (ob->main_stream, node->global.inlined);
+ if (node->same_comdat_group)
{
ref = lto_cgraph_encoder_lookup (encoder, node->same_comdat_group);
gcc_assert (ref != LCC_NOT_FOUND);
lto_output_uleb128_stream (ob->main_stream, 0);
}
-/* Output the varpool NODE to OB.
- If NODE is not in SET, then NODE is a boundary. */
-
-static void
-lto_output_varpool_node (struct lto_simple_output_block *ob, struct varpool_node *node,
- varpool_node_set set)
-{
- bool boundary_p = !varpool_node_in_set_p (node, set) && node->analyzed;
- struct bitpack_d *bp;
- struct varpool_node *alias;
- int count = 0;
-
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, node->decl);
- bp = bitpack_create ();
- bp_pack_value (bp, node->externally_visible, 1);
- bp_pack_value (bp, node->force_output, 1);
- bp_pack_value (bp, node->finalized, 1);
- gcc_assert (node->finalized || !node->analyzed);
- gcc_assert (node->needed);
- gcc_assert (!node->alias);
- /* FIXME: We have no idea how we move references around. For moment assume that
- everything is used externally. */
- bp_pack_value (bp, flag_wpa, 1); /* used_from_other_parition. */
- bp_pack_value (bp, boundary_p, 1); /* in_other_partition. */
- /* Also emit any extra name aliases. */
- for (alias = node->extra_name; alias; alias = alias->next)
- count++;
- bp_pack_value (bp, count != 0, 1);
- lto_output_bitpack (ob->main_stream, bp);
- bitpack_delete (bp);
-
- if (count)
- {
- lto_output_uleb128_stream (ob->main_stream, count);
- for (alias = node->extra_name; alias; alias = alias->next)
- lto_output_var_decl_index (ob->decl_state, ob->main_stream, alias->decl);
- }
-}
-
/* Stream out profile_summary to OB. */
static void
lto_cgraph_encoder_encode (encoder, node);
}
-/* Output all callees or indirect outgoing edges. EDGE must be the first such
- edge. */
-
-static void
-output_outgoing_cgraph_edges (struct cgraph_edge *edge,
- struct lto_simple_output_block *ob,
- lto_cgraph_encoder_t encoder)
-{
- if (!edge)
- return;
-
- /* Output edges in backward direction, so the reconstructed callgraph match
- and it is easy to associate call sites in the IPA pass summaries. */
- while (edge->next_callee)
- edge = edge->next_callee;
- for (; edge; edge = edge->prev_callee)
- lto_output_edge (ob, edge, encoder);
-}
-
/* Output the part of the cgraph in SET. */
void
/* We should have moved all the inlines. */
gcc_assert (!callee->global.inlined_to);
add_node_to (encoder, callee);
+ /* Also with each included function include all other functions
+ in the same comdat group. */
+ if (callee->same_comdat_group)
+ {
+ struct cgraph_node *next;
+ for (next = callee->same_comdat_group;
+ next != callee;
+ next = next->same_comdat_group)
+ if (!cgraph_node_in_set_p (next, set))
+ add_node_to (encoder, next);
+ }
}
}
+ /* Also with each included function include all other functions
+ in the same comdat group. */
+ if (node->same_comdat_group)
+ {
+ struct cgraph_node *next;
+ for (next = node->same_comdat_group;
+ next != node;
+ next = next->same_comdat_group)
+ if (!cgraph_node_in_set_p (next, set))
+ add_node_to (encoder, next);
+ }
}
/* Write out the nodes. We must first output a node and then its clones,
for (csi = csi_start (set); !csi_end_p (csi); csi_next (&csi))
{
node = csi_node (csi);
- output_outgoing_cgraph_edges (node->callees, ob, encoder);
- output_outgoing_cgraph_edges (node->indirect_calls, ob, encoder);
+ if (node->callees)
+ {
+ /* Output edges in backward direction, so the reconstructed callgraph
+ match and it is easy to associate call sites in the IPA pass summaries. */
+ edge = node->callees;
+ while (edge->next_callee)
+ edge = edge->next_callee;
+ for (; edge; edge = edge->prev_callee)
+ lto_output_edge (ob, edge, encoder);
+ }
}
lto_output_uleb128_stream (ob->main_stream, 0);
lto_destroy_simple_output_block (ob);
}
+
/* Overwrite the information in NODE based on FILE_DATA, TAG, FLAGS,
STACK_SIZE, SELF_TIME and SELF_SIZE. This is called either to initialize
NODE or to replace the values in it, for instance because the first
node->local.inline_summary.size_inlining_benefit = size_inlining_benefit;
node->global.time = self_time;
node->global.size = self_size;
- node->global.estimated_stack_size = stack_size;
- node->global.estimated_growth = INT_MIN;
node->local.lto_file_data = file_data;
node->local.local = bp_unpack_value (bp, 1);
node->local.inlinable = bp_unpack_value (bp, 1);
node->local.disregard_inline_limits = bp_unpack_value (bp, 1);
node->local.redefined_extern_inline = bp_unpack_value (bp, 1);
+ node->local.for_functions_valid = bp_unpack_value (bp, 1);
node->local.vtable_method = bp_unpack_value (bp, 1);
node->needed = bp_unpack_value (bp, 1);
node->address_taken = bp_unpack_value (bp, 1);
node->abstract_and_needed = bp_unpack_value (bp, 1);
+ node->reachable = bp_unpack_value (bp, 1);
node->reachable_from_other_partition = bp_unpack_value (bp, 1);
node->lowered = bp_unpack_value (bp, 1);
- node->analyzed = tag == LTO_cgraph_analyzed_node;
+ node->analyzed = bp_unpack_value (bp, 1);
node->in_other_partition = bp_unpack_value (bp, 1);
+ node->process = bp_unpack_value (bp, 1);
node->alias = bp_unpack_value (bp, 1);
node->finalized_by_frontend = bp_unpack_value (bp, 1);
- node->frequency = (enum node_frequency)bp_unpack_value (bp, 2);
}
-/* Output the part of the cgraph in SET. */
-
-void
-output_varpool (varpool_node_set set)
-{
- struct varpool_node *node;
- struct lto_simple_output_block *ob;
- int len = 0;
-
- ob = lto_create_simple_output_block (LTO_section_varpool);
-
- for (node = varpool_nodes; node; node = node->next)
- if (node->needed && node->analyzed)
- len++;
-
- lto_output_uleb128_stream (ob->main_stream, len);
-
- /* Write out the nodes. We must first output a node and then its clones,
- otherwise at a time reading back the node there would be nothing to clone
- from. */
- for (node = varpool_nodes; node; node = node->next)
- if (node->needed && node->analyzed)
- lto_output_varpool_node (ob, node, set);
-
- lto_destroy_simple_output_block (ob);
-}
/* Read a node from input_block IB. TAG is the node's tag just read.
Return the node read or overwriten. */
int stack_size = 0;
unsigned decl_index;
bool clone_p;
+ int estimated_stack_size = 0;
+ int stack_frame_offset = 0;
int ref = LCC_NOT_FOUND, ref2 = LCC_NOT_FOUND;
+ int estimated_growth = 0;
+ int time = 0;
+ int size = 0;
int self_time = 0;
int self_size = 0;
int time_inlining_benefit = 0;
int size_inlining_benefit = 0;
unsigned long same_body_count = 0;
+ bool inlined = false;
clone_p = (lto_input_uleb128 (ib) != 0);
node->count = lto_input_sleb128 (ib);
bp = lto_input_bitpack (ib);
- if (tag == LTO_cgraph_analyzed_node)
+ if (tag != LTO_cgraph_unavail_node)
{
stack_size = lto_input_sleb128 (ib);
self_size = lto_input_sleb128 (ib);
size_inlining_benefit = lto_input_sleb128 (ib);
self_time = lto_input_sleb128 (ib);
time_inlining_benefit = lto_input_sleb128 (ib);
-
- ref = lto_input_sleb128 (ib);
}
+ estimated_stack_size = lto_input_sleb128 (ib);
+ stack_frame_offset = lto_input_sleb128 (ib);
+ ref = lto_input_sleb128 (ib);
+ time = lto_input_sleb128 (ib);
+ size = lto_input_sleb128 (ib);
+ estimated_growth = lto_input_sleb128 (ib);
+ inlined = lto_input_uleb128 (ib);
ref2 = lto_input_sleb128 (ib);
same_body_count = lto_input_uleb128 (ib);
size_inlining_benefit);
bitpack_delete (bp);
+ node->global.estimated_stack_size = estimated_stack_size;
+ node->global.stack_frame_offset = stack_frame_offset;
+ node->global.time = time;
+ node->global.size = size;
+
/* Store a reference for now, and fix up later to be a pointer. */
node->global.inlined_to = (cgraph_node_ptr) (intptr_t) ref;
+ node->global.estimated_growth = estimated_growth;
+ node->global.inlined = inlined;
+
/* Store a reference for now, and fix up later to be a pointer. */
node->same_comdat_group = (cgraph_node_ptr) (intptr_t) ref2;
return node;
}
-/* Read a node from input_block IB. TAG is the node's tag just read.
- Return the node read or overwriten. */
-static struct varpool_node *
-input_varpool_node (struct lto_file_decl_data *file_data,
- struct lto_input_block *ib)
-{
- int decl_index;
- tree var_decl;
- struct varpool_node *node;
- struct bitpack_d *bp;
- bool aliases_p;
- int count;
-
- decl_index = lto_input_uleb128 (ib);
- var_decl = lto_file_decl_data_get_var_decl (file_data, decl_index);
- node = varpool_node (var_decl);
-
- bp = lto_input_bitpack (ib);
- node->externally_visible = bp_unpack_value (bp, 1);
- node->force_output = bp_unpack_value (bp, 1);
- node->finalized = bp_unpack_value (bp, 1);
- node->analyzed = 1;
- node->used_from_other_partition = bp_unpack_value (bp, 1);
- node->in_other_partition = bp_unpack_value (bp, 1);
- aliases_p = bp_unpack_value (bp, 1);
- if (node->finalized)
- varpool_mark_needed_node (node);
- bitpack_delete (bp);
- if (aliases_p)
- {
- count = lto_input_uleb128 (ib);
- for (; count > 0; count --)
- {
- tree decl = lto_file_decl_data_get_var_decl (file_data,
- lto_input_uleb128 (ib));
- varpool_extra_name_alias (decl, var_decl);
- }
- }
- return node;
-}
-
-
-/* Read an edge from IB. NODES points to a vector of previously read nodes for
- decoding caller and callee of the edge to be read. If INDIRECT is true, the
- edge being read is indirect (in the sense that it has
- indirect_unknown_callee set). */
+/* Read an edge from IB. NODES points to a vector of previously read
+ nodes for decoding caller and callee of the edge to be read. */
static void
-input_edge (struct lto_input_block *ib, VEC(cgraph_node_ptr, heap) *nodes,
- bool indirect)
+input_edge (struct lto_input_block *ib, VEC(cgraph_node_ptr, heap) *nodes)
{
struct cgraph_node *caller, *callee;
struct cgraph_edge *edge;
if (caller == NULL || caller->decl == NULL_TREE)
internal_error ("bytecode stream: no caller found while reading edge");
- if (!indirect)
- {
- callee = VEC_index (cgraph_node_ptr, nodes, lto_input_sleb128 (ib));
- if (callee == NULL || callee->decl == NULL_TREE)
- internal_error ("bytecode stream: no callee found while reading edge");
- }
- else
- callee = NULL;
+ callee = VEC_index (cgraph_node_ptr, nodes, lto_input_sleb128 (ib));
+ if (callee == NULL || callee->decl == NULL_TREE)
+ internal_error ("bytecode stream: no callee found while reading edge");
count = (gcov_type) lto_input_sleb128 (ib);
|| caller_resolution == LDPR_PREEMPTED_IR)
return;
- if (indirect)
- edge = cgraph_create_indirect_edge (caller, NULL, count, freq, nest);
- else
- edge = cgraph_create_edge (caller, callee, NULL, count, freq, nest);
-
- edge->indirect_inlining_edge = bp_unpack_value (bp, 1);
+ edge = cgraph_create_edge (caller, callee, NULL, count, freq, nest);
edge->lto_stmt_uid = stmt_id;
edge->inline_failed = inline_failed;
+ edge->indirect_call = bp_unpack_value (bp, 1);
edge->call_stmt_cannot_inline_p = bp_unpack_value (bp, 1);
edge->can_throw_external = bp_unpack_value (bp, 1);
bitpack_delete (bp);
while (tag)
{
if (tag == LTO_cgraph_edge)
- input_edge (ib, nodes, false);
- else if (tag == LTO_cgraph_indirect_edge)
- input_edge (ib, nodes, true);
+ input_edge (ib, nodes);
else
{
node = input_node (file_data, ib, tag);
VEC_free (cgraph_node_ptr, heap, nodes);
}
-/* Read a varpool from IB using the info in FILE_DATA. */
-
-static void
-input_varpool_1 (struct lto_file_decl_data *file_data,
- struct lto_input_block *ib)
-{
- unsigned HOST_WIDE_INT len;
-
- len = lto_input_uleb128 (ib);
- while (len)
- {
- input_varpool_node (file_data, ib);
- len--;
- }
-}
-
static struct gcov_ctr_summary lto_gcov_summary;
/* Input profile_info from IB. */
lto_destroy_simple_input_block (file_data, LTO_section_cgraph,
ib, data, len);
- ib = lto_create_simple_input_block (file_data, LTO_section_varpool,
- &data, &len);
- input_varpool_1 (file_data, ib);
- lto_destroy_simple_input_block (file_data, LTO_section_varpool,
- ib, data, len);
-
/* Assume that every file read needs to be processed by LTRANS. */
if (flag_wpa)
lto_mark_file_for_ltrans (file_data);
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