* tree.h (block_nonartificial_location): New prototype.

	* tree.c (block_nonartificial_location): New function.
	* dwarf2out.c (gen_subprogram_die): Add DW_AT_artificial
	if artificial attribute is present on abstract inline decl.
	* c-common.c (handle_artificial_attribute): New function.
	(c_common_attribute_table): Add artificial attribute.
	* final.c (override_filename, override_linenum): New variables.
	(final_scan_insn): For DBX_DEBUG or SDB_DEBUG, set override_filename
	and override_linenum if inside of a block inlined from
	__attribute__((__artificial__)) function.
	(notice_source_line): Honor override_filename and override_linenum.
	* doc/extend.texi: Document __attribute__((__artificial__)).
	* config/i386/emmintrin.h: Add __artificial__ attribute to
	all __always_inline__ functions.
	* config/i386/mmintrin.h: Likewise.
	* config/i386/tmmintrin.h: Likewise.
	* config/i386/mm3dnow.h: Likewise.
	* config/i386/pmmintrin.h: Likewise.
	* config/i386/ammintrin.h: Likewise.
	* config/i386/xmmintrin.h: Likewise.
	* config/i386/smmintrin.h: Likewise.
	* config/i386/bmmintrin.h: Likewise.
	* config/i386/mmintrin-common.h: Likewise.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@128686 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 36 insertions, 0 deletions

diff --git a/gcc/tree.c b/gcc/tree.c
index 59c17c7e10a..2e5bf5c9337 100644
--- a/gcc/tree.c
+++ b/gcc/tree.c
@@ -8752,4 +8752,40 @@ function_args_count (tree fntype)
   return num;
 }
 
+/* If BLOCK is inlined from an __attribute__((__artificial__))
+   routine, return pointer to location from where it has been
+   called.  */
+location_t *
+block_nonartificial_location (tree block)
+{
+  location_t *ret = NULL;
+
+  while (block && TREE_CODE (block) == BLOCK
+	 && BLOCK_ABSTRACT_ORIGIN (block))
+    {
+      tree ao = BLOCK_ABSTRACT_ORIGIN (block);
+
+      while (TREE_CODE (ao) == BLOCK && BLOCK_ABSTRACT_ORIGIN (ao))
+	ao = BLOCK_ABSTRACT_ORIGIN (ao);
+
+      if (TREE_CODE (ao) == FUNCTION_DECL)
+	{
+	  /* If AO is an artificial inline, point RET to the
+	     call site locus at which it has been inlined and continue
+	     the loop, in case AO's caller is also an artificial
+	     inline.  */
+	  if (DECL_DECLARED_INLINE_P (ao)
+	      && lookup_attribute ("artificial", DECL_ATTRIBUTES (ao)))
+	    ret = &BLOCK_SOURCE_LOCATION (block);
+	  else
+	    break;
+	}
+      else if (TREE_CODE (ao) != BLOCK)
+	break;
+
+      block = BLOCK_SUPERCONTEXT (block);
+    }
+  return ret;
+}
+
 #include "gt-tree.h"