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-rw-r--r--gcc/cgraphunit.c95
1 files changed, 94 insertions, 1 deletions
diff --git a/gcc/cgraphunit.c b/gcc/cgraphunit.c
index 22b33816caa..9ecf22b66f1 100644
--- a/gcc/cgraphunit.c
+++ b/gcc/cgraphunit.c
@@ -200,6 +200,10 @@ static void cgraph_mark_local_functions (void);
static bool cgraph_default_inline_p (struct cgraph_node *n);
static void cgraph_analyze_function (struct cgraph_node *node);
static void cgraph_decide_inlining_incrementally (struct cgraph_node *);
+/* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+static bool altivec_infection (struct cgraph_edge *);
+static bool fndecl_uses_vector_p (tree);
+/* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
/* Statistics we collect about inlining algorithm. */
static int ncalls_inlined;
@@ -398,6 +402,35 @@ cgraph_finalize_function (tree decl, bool nested)
do_warn_unused_parameter (decl);
}
+/* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+static bool
+fndecl_uses_vector_p (tree fndecl)
+{
+ tree arg, vars, var;
+ struct function *my_cfun = DECL_STRUCT_FUNCTION (fndecl);
+
+ if (TREE_CODE (TREE_TYPE (fndecl)) == VECTOR_TYPE)
+ return true;
+
+ arg = DECL_ARGUMENTS (fndecl);
+ while (arg)
+ {
+ if (TREE_CODE (TREE_TYPE (arg)) == VECTOR_TYPE)
+ return true;
+ arg = TREE_CHAIN (arg);
+ }
+
+ for (vars = my_cfun->unexpanded_var_list; vars; vars = TREE_CHAIN (vars))
+ {
+ var = TREE_VALUE (vars);
+ if (TREE_CODE (TREE_TYPE (var)) == VECTOR_TYPE)
+ return true;
+ }
+ /* Treewalk part folded into record_call_1 below. */
+ return false;
+}
+/* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
+
/* Walk tree and record all calls. Called via walk_tree. */
static tree
record_call_1 (tree *tp, int *walk_subtrees, void *data)
@@ -407,6 +440,15 @@ record_call_1 (tree *tp, int *walk_subtrees, void *data)
switch (TREE_CODE (t))
{
case VAR_DECL:
+ /* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+ {
+ struct cgraph_node *node = (struct cgraph_node *)data;
+ struct function *my_cfun = DECL_STRUCT_FUNCTION (node->decl);
+
+ if (TREE_CODE (TREE_TYPE (t)) == VECTOR_TYPE)
+ my_cfun->uses_vector = 1;
+ }
+ /* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
/* ??? Really, we should mark this decl as *potentially* referenced
by this function and re-examine whether the decl is actually used
after rtl has been generated. */
@@ -473,6 +515,11 @@ record_call_1 (tree *tp, int *walk_subtrees, void *data)
void
cgraph_create_edges (struct cgraph_node *node, tree body)
{
+ /* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+ if (!DECL_STRUCT_FUNCTION (node->decl)->uses_vector)
+ DECL_STRUCT_FUNCTION (node->decl)->uses_vector = fndecl_uses_vector_p (node->decl);
+ /* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
+
/* The nodes we're interested in are never shared, so walk
the tree ignoring duplicates. */
visited_nodes = pointer_set_create ();
@@ -1085,6 +1132,32 @@ cgraph_clone_inlined_nodes (struct cgraph_edge *e, bool duplicate)
cgraph_clone_inlined_nodes (e, duplicate);
}
+/* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+/* Return TRUE if the given edge represents a CALL from a
+ non-Altivec-using function to another that does. We must not
+ inline these CALLs, lest we infect a virgin G3-executable function
+ with AltiVec codes (e.g. prolog & epilog). Only active if
+ -faltivec and not -maltivec. */
+static bool
+altivec_infection (struct cgraph_edge *edge)
+{
+ if (flag_disable_opts_for_faltivec
+ && edge
+ && edge->caller
+ && !DECL_STRUCT_FUNCTION (edge->caller->decl)->uses_vector
+ && edge->callee
+ && DECL_STRUCT_FUNCTION (edge->callee->decl)
+ && DECL_STRUCT_FUNCTION (edge->callee->decl)->uses_vector)
+ {
+ edge->inline_failed = N_(" -faltivec on, callee has AltiVec(tm), caller doesn't; not inlined. Use -maltivec to allow.\n");
+ return true;
+ }
+ else
+ return false;
+}
+/* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
+
+
/* Mark edge E as inlined and update callgraph accordingly. */
void
@@ -1419,6 +1492,8 @@ cgraph_decide_inlining_of_small_functions (void)
if (cgraph_recursive_inlining_p (e->caller, e->callee,
&e->inline_failed)
+ /* APPLE LOCAL Selective inlining of functions that use Altivec 3837835 */
+ || altivec_infection (e)
|| !cgraph_check_inline_limits (e->caller, e->callee,
&e->inline_failed))
{
@@ -1565,6 +1640,14 @@ cgraph_decide_inlining (void)
node->callers->caller->global.insns);
old_insns = overall_insns;
+ /* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+ if (altivec_infection (node->callers))
+ {
+ if (cgraph_dump_file)
+ fprintf (cgraph_dump_file, node->callers->inline_failed);
+ continue;
+ }
+ /* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
if (cgraph_check_inline_limits (node->callers->caller, node,
NULL))
@@ -1613,6 +1696,11 @@ cgraph_decide_inlining_incrementally (struct cgraph_node *node)
/* First of all look for always inline functions. */
for (e = node->callees; e; e = e->next_callee)
+ /* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+ if (altivec_infection (e))
+ continue;
+ else
+ /* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
if (e->callee->local.disregard_inline_limits
&& e->inline_failed
&& !cgraph_recursive_inlining_p (node, e->callee, &e->inline_failed)
@@ -1631,6 +1719,10 @@ cgraph_decide_inlining_incrementally (struct cgraph_node *node)
&& cgraph_check_inline_limits (node, e->callee, &e->inline_failed)
&& DECL_SAVED_TREE (e->callee->decl))
{
+ /* APPLE LOCAL begin Selective inlining of functions that use Altivec 3837835 */
+ if (altivec_infection (e))
+ continue;
+ /* APPLE LOCAL end Selective inlining of functions that use Altivec 3837835 */
if (cgraph_default_inline_p (e->callee))
cgraph_mark_inline (e);
else
@@ -1842,7 +1934,8 @@ cgraph_build_static_cdtor (char which, tree body, int priority)
TREE_STATIC (decl) = 1;
TREE_USED (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
- DECL_IGNORED_P (decl) = 1;
+ /* APPLE LOCAL Radar 3939078 */
+ /* Delete DECL_IGNORED_P (decl) = 1; */
DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT (decl) = 1;
DECL_SAVED_TREE (decl) = body;
TREE_PUBLIC (decl) = ! targetm.have_ctors_dtors;
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 19:53:18 +0000