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2010-07-24 Jie Zhang <jie@codesourcery.com>
Issue #9079
Backport from mainline:
gcc/
2010-07-23 Jie Zhang <jie@codesourcery.com>
PR target/44290
* attribs.c (decl_attributes): Insert "noinline" and "noclone"
if "naked".
* tree-sra.c (ipa_sra_preliminary_function_checks): Return
false if ! tree_versionable_function_p.
gcc/testsuite/
2010-07-23 Jie Zhang <jie@codesourcery.com>
PR target/44290
* gcc.dg/pr44290-1.c: New test.
* gcc.dg/pr44290-2.c: New test.
2010-07-22 Maxim Kuvyrkov <maxim@codesourcery.com>
Backport from FSF GCC 4.5 branch to fix PR45015:
=== modified file 'gcc/attribs.c'
--- old/gcc/attribs.c 2010-04-02 18:54:46 +0000
+++ new/gcc/attribs.c 2010-08-05 11:39:36 +0000
@@ -278,6 +278,19 @@
TREE_VALUE (cur_attr) = chainon (opts, TREE_VALUE (cur_attr));
}
+ /* A "naked" function attribute implies "noinline" and "noclone" for
+ those targets that support it. */
+ if (TREE_CODE (*node) == FUNCTION_DECL
+ && lookup_attribute_spec (get_identifier ("naked"))
+ && lookup_attribute ("naked", attributes) != NULL)
+ {
+ if (lookup_attribute ("noinline", attributes) == NULL)
+ attributes = tree_cons (get_identifier ("noinline"), NULL, attributes);
+
+ if (lookup_attribute ("noclone", attributes) == NULL)
+ attributes = tree_cons (get_identifier ("noclone"), NULL, attributes);
+ }
+
targetm.insert_attributes (*node, &attributes);
for (a = attributes; a; a = TREE_CHAIN (a))
=== added file 'gcc/testsuite/gcc.dg/pr44290-1.c'
--- old/gcc/testsuite/gcc.dg/pr44290-1.c 1970-01-01 00:00:00 +0000
+++ new/gcc/testsuite/gcc.dg/pr44290-1.c 2010-08-05 11:39:36 +0000
@@ -0,0 +1,18 @@
+/* { dg-do compile { target arm*-*-* avr-*-* mcore-*-* rx-*-* spu-*-* } } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+static void __attribute__((naked))
+foo(void *from, void *to)
+{
+ asm volatile("dummy"::"r"(from), "r"(to));
+}
+
+unsigned int fie[2];
+
+void fum(void *to)
+{
+ foo(fie, to);
+}
+
+/* { dg-final { scan-tree-dump "foo \\\(void \\\* from, void \\\* to\\\)" "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */
=== added file 'gcc/testsuite/gcc.dg/pr44290-2.c'
--- old/gcc/testsuite/gcc.dg/pr44290-2.c 1970-01-01 00:00:00 +0000
+++ new/gcc/testsuite/gcc.dg/pr44290-2.c 2010-08-05 11:39:36 +0000
@@ -0,0 +1,24 @@
+/* { dg-do compile { target arm*-*-* avr-*-* mcore-*-* rx-*-* spu-*-* } } */
+/* { dg-options "-O2 -fdump-tree-optimized" } */
+
+static unsigned long __attribute__((naked))
+foo (unsigned long base)
+{
+ asm volatile ("dummy");
+}
+unsigned long
+bar (void)
+{
+ static int start, set;
+
+ if (!set)
+ {
+ set = 1;
+ start = foo (0);
+ }
+
+ return foo (start);
+}
+
+/* { dg-final { scan-tree-dump "foo \\\(long unsigned int base\\\)" "optimized" } } */
+/* { dg-final { cleanup-tree-dump "optimized" } } */
=== modified file 'gcc/tree-sra.c'
--- old/gcc/tree-sra.c 2010-03-17 12:02:35 +0000
+++ new/gcc/tree-sra.c 2010-08-05 11:39:36 +0000
@@ -4096,6 +4096,13 @@
static bool
ipa_sra_preliminary_function_checks (struct cgraph_node *node)
{
+ if (!tree_versionable_function_p (current_function_decl))
+ {
+ if (dump_file)
+ fprintf (dump_file, "Function isn't allowed to be versioned.\n");
+ return false;
+ }
+
if (!cgraph_node_can_be_local_p (node))
{
if (dump_file)
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