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sh.c: Include basic-block.h.

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* sh.c: Include basic-block.h.
	(sh_output_mi_thunk, emit_load_ptr): New functions.
	(TARGET_ASM_OUTPUT_MI_THUNK, TARGET_ASM_CAN_OUTPUT_MI_THUNK): Redefine.

From-SVN: r64248
This commit is contained in:
J"orn Rennecke 2003-03-12 16:33:20 +00:00 committed by Joern Rennecke
parent 68566610af
commit 1aa03f3810
2 changed files with 198 additions and 0 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Wed Mar 12 16:30:25 2003 J"orn Rennecke <joern.rennecke@superh.com>
* sh.c: Include basic-block.h.
(sh_output_mi_thunk, emit_load_ptr): New functions.
(TARGET_ASM_OUTPUT_MI_THUNK, TARGET_ASM_CAN_OUTPUT_MI_THUNK): Redefine.
2003-03-12 Nick Clifton <nickc@redhat.com>
* config/arm/pe.h (FIXED_REGISTERS): Add Maverick registers.

192
gcc/config/sh/sh.c
View File

@ -45,6 +45,7 @@ Boston, MA 02111-1307, USA. */
#include "target-def.h"
#include "real.h"
#include "langhooks.h"
#include "basic-block.h"
int code_for_indirect_jump_scratch = CODE_FOR_indirect_jump_scratch;
@ -212,6 +213,8 @@ static const char *sh_strip_name_encoding PARAMS ((const char *));
static void sh_init_builtins PARAMS ((void));
static void sh_media_init_builtins PARAMS ((void));
static rtx sh_expand_builtin PARAMS ((tree, rtx, rtx, enum machine_mode, int));
static void sh_output_mi_thunk PARAMS ((FILE *, tree, HOST_WIDE_INT,
HOST_WIDE_INT, tree));
static int flow_dependent_p PARAMS ((rtx, rtx));
static void flow_dependent_p_1 PARAMS ((rtx, rtx, void *));
static int shiftcosts PARAMS ((rtx));
@ -242,6 +245,12 @@ static int sh_address_cost PARAMS ((rtx));
#undef TARGET_ASM_FUNCTION_EPILOGUE
#define TARGET_ASM_FUNCTION_EPILOGUE sh_output_function_epilogue
#undef TARGET_ASM_OUTPUT_MI_THUNK
#define TARGET_ASM_OUTPUT_MI_THUNK sh_output_mi_thunk
#undef TARGET_ASM_CAN_OUTPUT_MI_THUNK
#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_tree_hwi_hwi_tree_true
#undef TARGET_INSERT_ATTRIBUTES
#define TARGET_INSERT_ATTRIBUTES sh_insert_attributes
@ -8368,4 +8377,187 @@ sh_register_operand (op, mode)
return register_operand (op, mode);
}
static rtx emit_load_ptr PARAMS ((rtx, rtx));
static rtx
emit_load_ptr (reg, addr)
rtx reg, addr;
{
rtx mem = gen_rtx_MEM (ptr_mode, addr);
if (Pmode != ptr_mode)
mem = gen_rtx_SIGN_EXTEND (Pmode, mem);
return emit_move_insn (reg, mem);
}
void
sh_output_mi_thunk (file, thunk_fndecl, delta, vcall_offset, function)
FILE *file;
tree thunk_fndecl ATTRIBUTE_UNUSED;
HOST_WIDE_INT delta;
HOST_WIDE_INT vcall_offset;
tree function;
{
CUMULATIVE_ARGS cum;
int structure_value_byref = 0;
rtx this, this_value, sibcall, insns, funexp;
tree funtype = TREE_TYPE (function);
int simple_add
= (TARGET_SHMEDIA ? CONST_OK_FOR_J (delta) : CONST_OK_FOR_I (delta));
int did_load = 0;
rtx scratch0, scratch1, scratch2;
reload_completed = 1;
no_new_pseudos = 1;
current_function_uses_only_leaf_regs = 1;
emit_note (NULL, NOTE_INSN_PROLOGUE_END);
/* Find the "this" pointer. We have such a wide range of ABIs for the
SH that it's best to do this completely machine independently.
"this" is passed as first argument, unless a structure return pointer
comes first, in which case "this" comes second. */
INIT_CUMULATIVE_ARGS (cum, funtype, NULL_RTX, 0);
#ifndef PCC_STATIC_STRUCT_RETURN
if (aggregate_value_p (TREE_TYPE (TREE_TYPE (function))))
structure_value_byref = 1;
#endif /* not PCC_STATIC_STRUCT_RETURN */
if (structure_value_byref && struct_value_rtx == 0)
{
tree ptype = build_pointer_type (TREE_TYPE (funtype));
FUNCTION_ARG_ADVANCE (cum, Pmode, ptype, 1);
}
this = FUNCTION_ARG (cum, Pmode, ptr_type_node, 1);
/* For SHcompact, we only have r0 for a scratch register: r1 is the
static chain pointer (even if you can't have nested virtual functions
right now, someone might implement them sometime), and the rest of the
registers are used for argument passing, are callee-saved, or reserved. */
scratch0 = scratch1 = scratch2 = gen_rtx_REG (Pmode, 0);
if (! TARGET_SH5)
{
scratch1 = gen_rtx_REG (ptr_mode, 1);
/* N.B., if not TARGET_HITACHI, register 2 is used to pass the pointer
pointing where to return struct values. */
scratch2 = gen_rtx_REG (Pmode, 3);
}
else if (TARGET_SHMEDIA)
{
scratch1 = gen_rtx_REG (ptr_mode, 21);
scratch2 = gen_rtx_REG (Pmode, TR0_REG);
}
this_value = plus_constant (this, delta);
if (vcall_offset
&& (simple_add || scratch0 != scratch1)
&& strict_memory_address_p (ptr_mode, this_value))
{
emit_load_ptr (scratch0, this_value);
did_load = 1;
}
if (!delta)
; /* Do nothing. */
else if (simple_add)
emit_move_insn (this, this_value);
else
{
emit_move_insn (scratch1, GEN_INT (delta));
emit_insn (gen_add2_insn (this, scratch1));
}
if (vcall_offset)
{
rtx offset_addr;
if (!did_load)
emit_load_ptr (scratch0, this);
offset_addr = plus_constant (scratch0, vcall_offset);
if (strict_memory_address_p (ptr_mode, offset_addr))
; /* Do nothing. */
else if (! TARGET_SH5)
{
/* scratch0 != scratch1, and we have indexed loads. Get better
schedule by loading the offset into r1 and using an indexed
load - then the load of r1 can issue before the load from
(this + delta) finishes. */
emit_move_insn (scratch1, GEN_INT (vcall_offset));
offset_addr = gen_rtx_PLUS (Pmode, scratch0, scratch1);
}
else if (TARGET_SHMEDIA
? CONST_OK_FOR_J (vcall_offset)
: CONST_OK_FOR_I (vcall_offset))
{
emit_insn (gen_add2_insn (scratch0, GEN_INT (vcall_offset)));
offset_addr = scratch0;
}
else if (scratch0 != scratch1)
{
emit_move_insn (scratch1, GEN_INT (vcall_offset));
emit_insn (gen_add2_insn (scratch0, scratch1));
offset_addr = scratch0;
}
else
abort (); /* FIXME */
emit_load_ptr (scratch0, offset_addr);
if (Pmode != ptr_mode)
scratch0 = gen_rtx_TRUNCATE (ptr_mode, scratch0);
emit_insn (gen_add2_insn (this, scratch0));
}
/* Generate a tail call to the target function. */
if (! TREE_USED (function))
{
assemble_external (function);
TREE_USED (function) = 1;
}
funexp = XEXP (DECL_RTL (function), 0);
emit_move_insn (scratch2, funexp);
funexp = gen_rtx_MEM (FUNCTION_MODE, scratch2);
sibcall = emit_call_insn (gen_sibcall (funexp, const0_rtx, NULL_RTX));
SIBLING_CALL_P (sibcall) = 1;
use_reg (&CALL_INSN_FUNCTION_USAGE (sibcall), this);
emit_barrier ();
/* Run just enough of rest_of_compilation to do scheduling and get
the insns emitted. Note that use_thunk calls
assemble_start_function and assemble_end_function. */
insns = get_insns ();
if (optimize > 0 && flag_schedule_insns_after_reload)
{
find_basic_blocks (insns, max_reg_num (), rtl_dump_file);
life_analysis (insns, rtl_dump_file, PROP_FINAL);
split_all_insns (1);
schedule_insns (rtl_dump_file);
}
MACHINE_DEPENDENT_REORG (insns);
if (optimize > 0 && flag_delayed_branch)
dbr_schedule (insns, rtl_dump_file);
shorten_branches (insns);
final_start_function (insns, file, 1);
final (insns, file, 1, 0);
final_end_function ();
if (optimize > 0 && flag_schedule_insns_after_reload)
{
/* Release all memory allocated by flow. */
free_basic_block_vars (0);
/* Release all memory held by regsets now. */
regset_release_memory ();
}
reload_completed = 0;
no_new_pseudos = 0;
}
#include "gt-sh.h"