[PATCH] v850: add v850_can_inline_p target hook

Martin Liška mliska@suse.cz
Mon Jun 28 09:27:40 GMT 2021


Tested and approved by Jeff.

I'm going to push it.

Martin

gcc/ChangeLog:

	* config/v850/v850.c (v850_option_override): Build default
	target node.
	(v850_can_inline_p): New.  Allow MASK_PROLOG_FUNCTION to be
	ignored for inlining.
	(TARGET_CAN_INLINE_P): New.
---
  gcc/config/v850/v850.c | 32 ++++++++++++++++++++++++++++++++
  1 file changed, 32 insertions(+)

diff --git a/gcc/config/v850/v850.c b/gcc/config/v850/v850.c
index e0e5005d865..371e6026e9a 100644
--- a/gcc/config/v850/v850.c
+++ b/gcc/config/v850/v850.c
@@ -3140,6 +3140,11 @@ v850_option_override (void)
    /* The RH850 ABI does not (currently) support the use of the CALLT instruction.  */
    if (! TARGET_GCC_ABI)
      target_flags |= MASK_DISABLE_CALLT;
+
+  /* Save the initial options in case the user does function specific
+     options.  */
+  target_option_default_node = target_option_current_node
+    = build_target_option_node (&global_options, &global_options_set);
  }
  

  const char *
@@ -3192,6 +3197,29 @@ v850_modes_tieable_p (machine_mode mode1, machine_mode mode2)
    return (mode1 == mode2
  	  || (GET_MODE_SIZE (mode1) <= 4 && GET_MODE_SIZE (mode2) <= 4));
  }
+
+static bool
+v850_can_inline_p (tree caller, tree callee)
+{
+  tree caller_tree = DECL_FUNCTION_SPECIFIC_TARGET (caller);
+  tree callee_tree = DECL_FUNCTION_SPECIFIC_TARGET (callee);
+
+  const unsigned HOST_WIDE_INT safe_flags = MASK_PROLOG_FUNCTION;
+
+  if (!callee_tree)
+    callee_tree = target_option_default_node;
+  if (!caller_tree)
+    caller_tree = target_option_default_node;
+  if (callee_tree == caller_tree)
+    return true;
+
+  cl_target_option *caller_opts = TREE_TARGET_OPTION (caller_tree);
+  cl_target_option *callee_opts = TREE_TARGET_OPTION (callee_tree);
+
+  return ((caller_opts->x_target_flags & ~safe_flags)
+	  == (callee_opts->x_target_flags & ~safe_flags));
+}
+
  

  /* Initialize the GCC target structure.  */
  
@@ -3306,6 +3334,10 @@ v850_modes_tieable_p (machine_mode mode1, machine_mode mode2)
  #undef  TARGET_HAVE_SPECULATION_SAFE_VALUE
  #define TARGET_HAVE_SPECULATION_SAFE_VALUE speculation_safe_value_not_needed
  
+#undef TARGET_CAN_INLINE_P
+#define TARGET_CAN_INLINE_P v850_can_inline_p
+
+
  struct gcc_target targetm = TARGET_INITIALIZER;
  
  #include "gt-v850.h"
-- 
2.32.0



More information about the Gcc-patches mailing list