Remove TARGET_SETUP_INCOMING_VARARG_BOUNDS

TARGET_SETUP_INCOMING_VARARG_BOUNDS seems to be an unused vestige of the
MPX support.

2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (setup_incoming_vararg_bounds): Remove.
	* doc/tm.texi.in (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Remove.
	* doc/tm.texi: Regenerate.
	* targhooks.c (default_setup_incoming_vararg_bounds): Delete.
	* targhooks.h (default_setup_incoming_vararg_bounds): Likewise.
	* config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
	(TARGET_SETUP_INCOMING_VARARG_BOUNDS): Likewise.

From-SVN: r274539

7 files changed, 10 insertions, 62 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ce0bb0c..eba58f6 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,13 @@
+2019-08-15  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* target.def (setup_incoming_vararg_bounds): Remove.
+	* doc/tm.texi.in (TARGET_SETUP_INCOMING_VARARG_BOUNDS): Remove.
+	* doc/tm.texi: Regenerate.
+	* targhooks.c (default_setup_incoming_vararg_bounds): Delete.
+	* targhooks.h (default_setup_incoming_vararg_bounds): Likewise.
+	* config/i386/i386.c (ix86_setup_incoming_vararg_bounds): Likewise.
+	(TARGET_SETUP_INCOMING_VARARG_BOUNDS): Likewise.
+
 2019-08-15  Jozef Lawrynowicz  <jozef.l@mittosystems.com>
 
 	MSP430: Fix lines over 80 characters long in
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 1236230..5eb625c 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -4126,34 +4126,6 @@ ix86_setup_incoming_varargs (cumulative_args_t cum_v, machine_mode mode,
     setup_incoming_varargs_64 (&next_cum);
 }
 
-static void
-ix86_setup_incoming_vararg_bounds (cumulative_args_t cum_v,
-				   machine_mode mode,
-				   tree type,
-				   int *pretend_size ATTRIBUTE_UNUSED,
-				   int no_rtl)
-{
-  CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
-  CUMULATIVE_ARGS next_cum;
-  tree fntype;
-
-  gcc_assert (!no_rtl);
-
-  /* Do nothing if we use plain pointer to argument area.  */
-  if (!TARGET_64BIT || cum->call_abi == MS_ABI)
-    return;
-
-  fntype = TREE_TYPE (current_function_decl);
-
-  /* For varargs, we do not want to skip the dummy va_dcl argument.
-     For stdargs, we do want to skip the last named argument.  */
-  next_cum = *cum;
-  if (stdarg_p (fntype))
-    ix86_function_arg_advance (pack_cumulative_args (&next_cum), mode, type,
-			       true);
-}
-
-
 /* Checks if TYPE is of kind va_list char *.  */
 
 static bool
@@ -23049,9 +23021,6 @@ ix86_run_selftests (void)
 #undef TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS
 #define TARGET_CALL_FUSAGE_CONTAINS_NON_CALLEE_CLOBBERS true
 
-#undef TARGET_SETUP_INCOMING_VARARG_BOUNDS
-#define TARGET_SETUP_INCOMING_VARARG_BOUNDS ix86_setup_incoming_vararg_bounds
-
 #undef TARGET_OFFLOAD_OPTIONS
 #define TARGET_OFFLOAD_OPTIONS \
   ix86_offload_options
diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
index 89990cb..f05b311 100644
--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
@@ -5314,12 +5314,6 @@ This hook is used by expand pass to emit insn to store @var{bounds}
 returned by function call into @var{slot}.
 @end deftypefn
 
-@deftypefn {Target Hook} void TARGET_SETUP_INCOMING_VARARG_BOUNDS (cumulative_args_t @var{args_so_far}, machine_mode @var{mode}, tree @var{type}, int *@var{pretend_args_size}, int @var{second_time})
-Use it to store bounds for anonymous register arguments stored
-into the stack.  Arguments meaning is similar to
-@code{TARGET_SETUP_INCOMING_VARARGS}.
-@end deftypefn
-
 @node Trampolines
 @section Support for Nested Functions
 @cindex support for nested functions
diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
index b4d57b8..98e7100 100644
--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
@@ -3785,8 +3785,6 @@ These machine description macros help implement varargs:
 
 @hook TARGET_STORE_RETURNED_BOUNDS
 
-@hook TARGET_SETUP_INCOMING_VARARG_BOUNDS
-
 @node Trampolines
 @section Support for Nested Functions
 @cindex support for nested functions
diff --git a/gcc/target.def b/gcc/target.def
index 73334e0..4266b8c 100644
--- a/gcc/target.def
+++ b/gcc/target.def
@@ -4551,15 +4551,6 @@ returned by function call into @var{slot}.",
  default_store_returned_bounds)
 
 DEFHOOK
-(setup_incoming_vararg_bounds,
- "Use it to store bounds for anonymous register arguments stored\n\
-into the stack.  Arguments meaning is similar to\n\
-@code{TARGET_SETUP_INCOMING_VARARGS}.",
- void, (cumulative_args_t args_so_far, machine_mode mode, tree type,
-	int *pretend_args_size, int second_time),
- default_setup_incoming_vararg_bounds)
-
-DEFHOOK
 (call_args,
  "While generating RTL for a function call, this target hook is invoked once\n\
 for each argument passed to the function, either a register returned by\n\
diff --git a/gcc/targhooks.c b/gcc/targhooks.c
index fa797b4..111ed2e 100644
--- a/gcc/targhooks.c
+++ b/gcc/targhooks.c
@@ -2274,15 +2274,6 @@ std_gimplify_va_arg_expr (tree valist, tree type, gimple_seq *pre_p,
   return build_va_arg_indirect_ref (addr);
 }
 
-void
-default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED,
-				      machine_mode mode ATTRIBUTE_UNUSED,
-				      tree type ATTRIBUTE_UNUSED,
-				      int *pretend_arg_size ATTRIBUTE_UNUSED,
-				      int second_time ATTRIBUTE_UNUSED)
-{
-}
-
 /* An implementation of TARGET_CAN_USE_DOLOOP_P for targets that do
    not support nested low-overhead loops.  */
 
diff --git a/gcc/targhooks.h b/gcc/targhooks.h
index ca2e37d..017a9d2 100644
--- a/gcc/targhooks.h
+++ b/gcc/targhooks.h
@@ -265,11 +265,6 @@ extern rtx default_load_bounds_for_arg (rtx, rtx, rtx);
 extern void default_store_bounds_for_arg (rtx, rtx, rtx, rtx);
 extern rtx default_load_returned_bounds (rtx);
 extern void default_store_returned_bounds (rtx,rtx);
-extern void default_setup_incoming_vararg_bounds (cumulative_args_t ca ATTRIBUTE_UNUSED,
-						  machine_mode mode ATTRIBUTE_UNUSED,
-						  tree type ATTRIBUTE_UNUSED,
-						  int *pretend_arg_size ATTRIBUTE_UNUSED,
-						  int second_time ATTRIBUTE_UNUSED);
 extern bool default_optab_supported_p (int, machine_mode, machine_mode,
 				       optimization_type);
 extern unsigned int default_max_noce_ifcvt_seq_cost (edge);