* doc/tm.texi (TARGET_MD_ASM_CLOBBERS): Adjust wording to not

	imply that this is called once, independent of asms in code.
	Adjust to now being pased output and input lists.  Mention helper
	function decl_overlaps_hard_reg_set_p.
	* hooks.c (hook_tree_tree_tree_tree_3rd_identity): Rename from
	hook_tree_tree_identity and to take three trees, returning third.
	* hooks.h (hook_tree_tree_tree_tree_3rd_identity): Adjust the
	prototype.
	* stmt.c: include hard-reg-set.h before tree.h.
	(decl_overlaps_hard_reg_set_p): New function, broken out from...
	(decl_conflicts_with_clobbers_p): Call
	decl_overlaps_hard_reg_set_p.
	(expand_asm_operands): Pass output and input lists in call to
	targetm.md_asm_clobbers.
	* target-def.h (TARGET_MD_ASM_CLOBBERS): Define as
	hook_tree_tree_tree_tree_3rd_identity.
	* target.h (struct gcc_target.md_asm_clobbers): Take three tree
	parameters.
	* tree.h [HARD_CONST] (decl_overlaps_hard_reg_set_p): Prototype.
	* config/i386/i386.c (ix86_md_asm_clobbers): Adjust to three
	parameters, first two unused.
	* config/cris/cris.c (cris_md_asm_clobbers): Adjust to added
	parameters.  Only add MOF to clobbers if there's no 'h' mentioned
	in constraint letters and MOF is not mentioned as a asm-declared
	register in neither of the input and output lists.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@96923 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 3 deletions

diff --git a/gcc/hooks.c b/gcc/hooks.c
index 274d427a931..6e6e7c70321 100644
--- a/gcc/hooks.c
+++ b/gcc/hooks.c
@@ -228,11 +228,12 @@ hook_rtx_tree_int_null (tree a ATTRIBUTE_UNUSED, int b ATTRIBUTE_UNUSED)
   return NULL;
 }
 
-/* Generic hook that takes a tree and returns it as is.  */
+/* Generic hook that takes three trees and returns the last one as is.  */
 tree
-hook_tree_tree_identity (tree a)
+hook_tree_tree_tree_tree_3rd_identity (tree a ATTRIBUTE_UNUSED,
+				       tree b ATTRIBUTE_UNUSED, tree c)
 {
-  return a;
+  return c;
 }
 
 /* Generic hook that takes a tree and returns a NULL string.  */