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ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of 'early' argument take inlining mode argument specifying whether to...

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* ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of 'early' argument
	take inlining mode argument specifying whether to inline for size/speeed or all
	functions; add support for flattening; improve dumpting.
	(cgraph_early_inlining): Update call of decide_inlining_incrementally.

From-SVN: r120970
This commit is contained in:
Jan Hubicka 2007-01-19 18:20:20 +01:00 committed by Jan Hubicka
parent e65fff3cde
commit c3056c2d23
2 changed files with 42 additions and 16 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
2007-01-19 Jan Hubicka <jh@suse.cz>
* ipa-inline.c (cgraph_decide_inlining_incrementally): Instead of 'early' argument
take inlining mode argument specifying whether to inline for size/speeed or all
functions; add support for flattening; improve dumpting.
(cgraph_early_inlining): Update call of decide_inlining_incrementally.
2007-01-19 Manuel Lopez-Ibanez <manu@gcc.gnu.org>
PR c++/17947

51
gcc/ipa-inline.c
View File

@ -1136,11 +1136,17 @@ cgraph_decide_inlining (void)
return 0;
}
enum inlining_mode {
INLINE_SIZE,
INLINE_SPEED,
INLINE_ALL
};
/* Decide on the inlining. We do so in the topological order to avoid
expenses on updating data structures. */
static unsigned int
cgraph_decide_inlining_incrementally (struct cgraph_node *node, bool early)
cgraph_decide_inlining_incrementally (struct cgraph_node *node, enum inlining_mode mode)
{
struct cgraph_edge *e;
bool inlined = false;
@ -1150,10 +1156,17 @@ cgraph_decide_inlining_incrementally (struct cgraph_node *node, bool early)
#ifdef ENABLE_CHECKING
verify_cgraph_node (node);
#endif
if (lookup_attribute ("flatten", DECL_ATTRIBUTES (node->decl)) != NULL)
{
if (dump_file)
fprintf (dump_file, " Flattening %s\n", cgraph_node_name (node));
mode = INLINE_ALL;
}
/* First of all look for always inline functions. */
for (e = node->callees; e; e = e->next_callee)
if (e->callee->local.disregard_inline_limits
if ((e->callee->local.disregard_inline_limits
|| (mode == INLINE_ALL && e->callee->local.inlinable))
&& e->inline_failed
&& (gimple_in_ssa_p (DECL_STRUCT_FUNCTION (node->decl))
== gimple_in_ssa_p (DECL_STRUCT_FUNCTION (e->callee->decl)))
@ -1162,25 +1175,27 @@ cgraph_decide_inlining_incrementally (struct cgraph_node *node, bool early)
in duplicate_decls. See gcc.c-torture/compile/20011119-2.c */
&& (DECL_SAVED_TREE (e->callee->decl) || e->callee->inline_decl))
{
if (dump_file && early)
if (dump_file)
{
fprintf (dump_file, " Early inlining %s",
fprintf (dump_file, " Inlining always_inline %s",
cgraph_node_name (e->callee));
fprintf (dump_file, " into %s\n", cgraph_node_name (node));
}
cgraph_mark_inline (e);
/* In order to fully inline alway_inline functions at -O0, we need to
/* In order to fully inline always_inline functions at -O0, we need to
recurse here, since the inlined functions might not be processed by
incremental inlining at all yet. */
incremental inlining at all yet.
Also flattening needs to be done recursively. */
if (!flag_unit_at_a_time)
cgraph_decide_inlining_incrementally (e->callee, early);
if (!flag_unit_at_a_time || mode == INLINE_ALL)
cgraph_decide_inlining_incrementally (e->callee, mode);
inlined = true;
}
/* Now do the automatic inlining. */
if (!flag_really_no_inline)
if (!flag_really_no_inline && mode != INLINE_ALL)
for (e = node->callees; e; e = e->next_callee)
if (e->callee->local.inlinable
&& e->inline_failed
@ -1188,28 +1203,30 @@ cgraph_decide_inlining_incrementally (struct cgraph_node *node, bool early)
&& !cgraph_recursive_inlining_p (node, e->callee, &e->inline_failed)
&& (gimple_in_ssa_p (DECL_STRUCT_FUNCTION (node->decl))
== gimple_in_ssa_p (DECL_STRUCT_FUNCTION (e->callee->decl)))
&& (!early
&& (mode != INLINE_SIZE
|| (cgraph_estimate_size_after_inlining (1, e->caller, e->callee)
<= e->caller->global.insns))
&& cgraph_check_inline_limits (node, e->callee, &e->inline_failed,
false)
false)
&& (DECL_SAVED_TREE (e->callee->decl) || e->callee->inline_decl))
{
if (cgraph_default_inline_p (e->callee, &failed_reason))
{
if (dump_file && early)
if (dump_file)
{
fprintf (dump_file, " Early inlining %s",
fprintf (dump_file, " Inlining %s",
cgraph_node_name (e->callee));
fprintf (dump_file, " into %s\n", cgraph_node_name (node));
}
cgraph_mark_inline (e);
inlined = true;
if (!flag_unit_at_a_time)
cgraph_decide_inlining_incrementally (e->callee, mode);
}
else if (!early)
else if (!flag_unit_at_a_time)
e->inline_failed = failed_reason;
}
if (early && inlined && !node->global.inlined_to)
if (flag_unit_at_a_time && inlined && !node->global.inlined_to)
{
timevar_push (TV_INTEGRATION);
todo = optimize_inline_calls (current_function_decl);
@ -1259,7 +1276,9 @@ cgraph_early_inlining (void)
if (sorrycount || errorcount)
return 0;
return cgraph_decide_inlining_incrementally (node, flag_unit_at_a_time);
return cgraph_decide_inlining_incrementally (node,
flag_unit_at_a_time
? INLINE_SIZE : INLINE_SPEED);
}
/* When inlining shall be performed. */