Use function_arg_info for TARGET_ARG_PARTIAL_BYTES

This patch adds the function_arg_info class and uses it for
TARGET_ARG_PARTIAL_BYTES.

The hook is passed the promoted mode instead of the original type mode.

The arguments aren't mentioned in the documentation, which is why the
target.def change is so small.

The patch changes "true" to "arg.named" in:

  gcc_assert (!epiphany_pass_by_reference (cum, mode, type, /* named */ true));

but epiphany_pass_by_reference doesn't care about the named flag.

2019-08-20  Richard Sandiford  <richard.sandiford@arm.com>

gcc/
	* target.def (arg_partial_bytes): Take a function_arg_info instead
	of a mode, type and named flag.
	* doc/tm.texi: Regenerate.
	* target.h (function_arg_info): Declare.
	* calls.h (function_arg_info): New class.
	* targhooks.h (hook_int_CUMULATIVE_ARGS_mode_tree_bool_0): Delete.
	(hook_int_CUMULATIVE_ARGS_arg_info_0): Declare.
	* targhooks.c (hook_int_CUMULATIVE_ARGS_mode_tree_bool_0): Delete.
	(hook_int_CUMULATIVE_ARGS_arg_info_0): New function.
	* calls.c (initialize_argument_information): Update call to
	targetm.calls.partial_bytes.
	(emit_library_call_value_1): Likewise.
	* expr.c (block_move_libcall_safe_for_call_parm): Likewise.
	* function.c (assign_parm_find_entry_rtl): Likewise.
	* config/alpha/alpha.c (alpha_arg_partial_bytes): Take a
	function_arg_info instead of a mode, type and named flag.
	* config/arc/arc.c (arc_arg_partial_bytes): Likewise.
	* config/arm/arm.c (arm_arg_partial_bytes): Likewise.
	(cmse_func_args_or_return_in_stack): Update accordingly.
	* config/bfin/bfin.c (bfin_arg_partial_bytes): Take a
	function_arg_info instead of a mode, type and named flag.
	* config/cris/cris.c (cris_arg_partial_bytes): Likewise.
	* config/csky/csky.c (csky_arg_partial_bytes): Likewise.
	* config/epiphany/epiphany.c (epiphany_arg_partial_bytes): Likewise.
	* config/fr30/fr30.c: Include calls.h.
	(fr30_arg_partial_bytes): Take a function_arg_info instead of a mode,
	type and named flag.
	* config/frv/frv.c: Include calls.h.
	(frv_arg_partial_bytes): Take a function_arg_info instead of a mode,
	type and named flag.
	* config/ft32/ft32.c (ft32_arg_partial_bytes): Likewise.
	* config/gcn/gcn.c (gcn_arg_partial_bytes): Likewise.
	* config/ia64/ia64.c (ia64_arg_partial_bytes): Likewise.
	* config/iq2000/iq2000.c (iq2000_arg_partial_bytes): Likewise.
	* config/m32r/m32r.c (m32r_arg_partial_bytes): Likewise.
	* config/mcore/mcore.c (mcore_arg_partial_bytes): Likewise.
	* config/microblaze/microblaze.c (function_arg_partial_bytes):
	Likewise.
	* config/mips/mips.c (mips_arg_partial_bytes): Likewise.
	* config/mn10300/mn10300.c (mn10300_arg_partial_bytes): Likewise.
	* config/moxie/moxie.c (moxie_arg_partial_bytes): Likewise.
	* config/msp430/msp430.c (msp430_arg_partial_bytes): Likewise.
	* config/nds32/nds32.c (nds32_arg_partial_bytes): Likewise.
	* config/nios2/nios2.c (nios2_arg_partial_bytes): Likewise.
	* config/pa/pa.c (pa_arg_partial_bytes): Likewise.
	* config/pru/pru.c (pru_arg_partial_bytes): Likewise.
	* config/riscv/riscv.c (riscv_arg_partial_bytes): Likewise.
	* config/rs6000/rs6000-internal.h (rs6000_arg_partial_bytes): Likewise.
	* config/rs6000/rs6000-call.c (rs6000_arg_partial_bytes): Likewise.
	(rs6000_parm_needs_stack): Update call accordingly.
	* config/sh/sh.c (sh_arg_partial_bytes): Take a
	function_arg_info instead of a mode, type and named flag.
	* config/sparc/sparc.c (sparc_arg_partial_bytes): Likewise.
	* config/v850/v850.c (v850_arg_partial_bytes): Likewise.

From-SVN: r274697

1 files changed, 7 insertions, 11 deletions

diff --git a/gcc/config/sh/sh.c b/gcc/config/sh/sh.c
index ab01809..1276d3a 100644
--- a/gcc/config/sh/sh.c
+++ b/gcc/config/sh/sh.c
@@ -298,8 +298,7 @@ static bool sh_pass_by_reference (cumulative_args_t, machine_mode,
 				  const_tree, bool);
 static bool sh_callee_copies (cumulative_args_t, machine_mode,
 			      const_tree, bool);
-static int sh_arg_partial_bytes (cumulative_args_t, machine_mode,
-			         tree, bool);
+static int sh_arg_partial_bytes (cumulative_args_t, const function_arg_info &);
 static void sh_function_arg_advance (cumulative_args_t, machine_mode,
 				     const_tree, bool);
 static rtx sh_function_arg (cumulative_args_t, machine_mode,
@@ -7992,20 +7991,17 @@ sh_pass_in_reg_p (const CUMULATIVE_ARGS& cum, machine_mode mode,
 }
 
 static int
-sh_arg_partial_bytes (cumulative_args_t cum_v, machine_mode mode,
-		      tree type, bool named ATTRIBUTE_UNUSED)
+sh_arg_partial_bytes (cumulative_args_t cum_v, const function_arg_info &arg)
 {
   CUMULATIVE_ARGS *cum = get_cumulative_args (cum_v);
   int words = 0;
 
-  if (sh_pass_in_reg_p (*cum, mode, type)
+  if (sh_pass_in_reg_p (*cum, arg.mode, arg.type)
       && !TARGET_FPU_DOUBLE
-      && (sh_round_reg (*cum, mode)
-	  + (mode != BLKmode
-	     ? CEIL (GET_MODE_SIZE (mode), UNITS_PER_WORD)
-	     : CEIL (int_size_in_bytes (type), UNITS_PER_WORD))
-	  > NPARM_REGS (mode)))
-    words = NPARM_REGS (mode) - sh_round_reg (*cum, mode);
+      && (sh_round_reg (*cum, arg.mode)
+	  + CEIL (arg.promoted_size_in_bytes (), UNITS_PER_WORD)
+	  > NPARM_REGS (arg.mode)))
+    words = NPARM_REGS (arg.mode) - sh_round_reg (*cum, arg.mode);
 
   return words * UNITS_PER_WORD;
 }