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, 6 insertions, 6 deletions

diff --git a/gcc/calls.c b/gcc/calls.c
index dd428b9bbb1..8f3574e4249 100644
--- a/gcc/calls.c
+++ b/gcc/calls.c
@@ -2142,10 +2142,9 @@ initialize_argument_information (int num_actuals ATTRIBUTE_UNUSED,
       else
 	args[i].tail_call_reg = args[i].reg;
 
+      function_arg_info arg (type, mode, argpos < n_named_args);
       if (args[i].reg)
-	args[i].partial
-	  = targetm.calls.arg_partial_bytes (args_so_far, mode, type,
-					     argpos < n_named_args);
+	args[i].partial = targetm.calls.arg_partial_bytes (args_so_far, arg);
 
       args[i].pass_on_stack = targetm.calls.must_pass_in_stack (mode, type);
 
@@ -4871,10 +4870,10 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
       argvec[count].mode = Pmode;
       argvec[count].partial = 0;
 
+      function_arg_info ptr_arg (Pmode, /*named=*/true);
       argvec[count].reg = targetm.calls.function_arg (args_so_far,
 						      Pmode, NULL_TREE, true);
-      gcc_assert (targetm.calls.arg_partial_bytes (args_so_far, Pmode,
-						   NULL_TREE, 1) == 0);
+      gcc_assert (targetm.calls.arg_partial_bytes (args_so_far, ptr_arg) == 0);
 
       locate_and_pad_parm (Pmode, NULL_TREE,
 #ifdef STACK_PARMS_IN_REG_PARM_AREA
@@ -4952,13 +4951,14 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
 	}
 
       mode = promote_function_mode (NULL_TREE, mode, &unsigned_p, NULL_TREE, 0);
+      function_arg_info arg (mode, /*named=*/true);
       argvec[count].mode = mode;
       argvec[count].value = convert_modes (mode, GET_MODE (val), val, unsigned_p);
       argvec[count].reg = targetm.calls.function_arg (args_so_far, mode,
 						      NULL_TREE, true);
 
       argvec[count].partial
-	= targetm.calls.arg_partial_bytes (args_so_far, mode, NULL_TREE, 1);
+	= targetm.calls.arg_partial_bytes (args_so_far, arg);
 
       if (argvec[count].reg == 0
 	  || argvec[count].partial != 0