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bfin.c: Include "cgraph.h".

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* config/bfin/bfin.c: Include "cgraph.h".
	(bfin_load_pic_reg): Omit loading pic reg if in a local function.
	Return the reg that holds the pointer to the GOT.
	(bfin_expand_prologue): Use return value of bfin_load_pic_reg when
	doing stack checking.

From-SVN: r108318
This commit is contained in:
Bernd Schmidt 2005-12-09 22:44:23 +00:00 • committed by Bernd Schmidt
parent 127203ac0c
commit 9fc023cc8d
2 changed files with 23 additions and 5 deletions
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8
gcc/ChangeLog
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@ -1,3 +1,11 @@
2005-12-09 Bernd Schmidt <bernd.schmidt@analog.com>
* config/bfin/bfin.c: Include "cgraph.h".
(bfin_load_pic_reg): Omit loading pic reg if in a local function.
Return the reg that holds the pointer to the GOT.
(bfin_expand_prologue): Use return value of bfin_load_pic_reg when
doing stack checking.
2005-12-09 Diego Novillo <dnovillo@redhat.com>
* tree.c (recompute_tree_invariant_for_addr_expr): Rename from

20
gcc/config/bfin/bfin.c
View file

@ -45,6 +45,7 @@
#include "recog.h"
#include "ggc.h"
#include "integrate.h"
#include "cgraph.h"
#include "langhooks.h"
#include "bfin-protos.h"
#include "tm-preds.h"
@ -863,10 +864,19 @@ expand_interrupt_handler_epilogue (rtx spreg, e_funkind fkind)
/* Used while emitting the prologue to generate code to load the correct value
into the PIC register, which is passed in DEST. */
static void
static rtx
bfin_load_pic_reg (rtx dest)
{
struct cgraph_local_info *i = NULL;
rtx addr, insn;
if (flag_unit_at_a_time)
i = cgraph_local_info (current_function_decl);
/* Functions local to the translation unit don't need to reload the
pic reg, since the caller always passes a usable one. */
if (i && i->local)
return pic_offset_table_rtx;
if (bfin_lib_id_given)
addr = plus_constant (pic_offset_table_rtx, -4 - bfin_library_id * 4);
@ -876,6 +886,7 @@ bfin_load_pic_reg (rtx dest)
UNSPEC_LIBRARY_OFFSET));
insn = emit_insn (gen_movsi (dest, gen_rtx_MEM (Pmode, addr)));
REG_NOTES (insn) = gen_rtx_EXPR_LIST (REG_MAYBE_DEAD, const0_rtx, NULL);
return dest;
}
/* Generate RTL for the prologue of the current function. */
@ -908,11 +919,10 @@ bfin_expand_prologue (void)
if (TARGET_ID_SHARED_LIBRARY)
{
rtx p1reg = gen_rtx_REG (Pmode, REG_P1);
rtx r3reg = gen_rtx_REG (Pmode, REG_R3);
rtx val;
pic_reg_loaded = p2reg;
bfin_load_pic_reg (pic_reg_loaded);
val = legitimize_pic_address (stack_limit_rtx, p1reg, p2reg);
pic_reg_loaded = bfin_load_pic_reg (p2reg);
val = legitimize_pic_address (stack_limit_rtx, p1reg,
pic_reg_loaded);
emit_move_insn (p1reg, val);
frame_related_constant_load (p2reg, offset, FALSE);
emit_insn (gen_addsi3 (p2reg, p2reg, p1reg));