Add ability to set target options (ix86 only) and optimization options on a function specific basis

From-SVN: r138075

1 files changed, 34 insertions, 0 deletions

diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index 4064ad47..4e9b9ad 100644
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -709,4 +709,38 @@ default_hard_regno_scratch_ok (unsigned int regno ATTRIBUTE_UNUSED)
   return true;
 }
 
+bool
+default_target_option_valid_attribute_p (tree ARG_UNUSED (fndecl),
+					 tree ARG_UNUSED (name),
+					 tree ARG_UNUSED (args),
+					 int ARG_UNUSED (flags))
+{
+  return false;
+}
+
+bool
+default_target_option_can_inline_p (tree caller, tree callee)
+{
+  bool ret = false;
+  tree callee_opts = DECL_FUNCTION_SPECIFIC_TARGET (callee);
+  tree caller_opts = DECL_FUNCTION_SPECIFIC_TARGET (caller);
+
+  /* If callee has no option attributes, then it is ok to inline */
+  if (!callee_opts)
+    ret = true;
+
+  /* If caller has no option attributes, but callee does then it is not ok to
+     inline */
+  else if (!caller_opts)
+    ret = false;
+
+  /* If both caller and callee have attributes, assume that if the pointer is
+     different, the the two functions have different target options since
+     build_target_option_node uses a hash table for the options.  */
+  else
+    ret = (callee_opts == caller_opts);
+
+  return ret;
+}
+
 #include "gt-targhooks.h"