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rs6000.h (RS6000_PIC_OFFSET_TABLE_REGNUM): New.

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2002-03-31  Franz Sirl  <Franz.Sirl-kernel@lauterbach.com>

	* config/rs6000/rs6000.h (RS6000_PIC_OFFSET_TABLE_REGNUM): New.
	(PIC_OFFSET_TABLE_REGNUM): Use it and return INVALID_REGNUM if
	!flag_pic.
	(CONDITIONAL_REGISTER_USAGE): Adjust accordingly.
	* config/rs6000/rs6000.h: Use RS6000_PIC_OFFSET_TABLE_REGNUM instead
	of PIC_OFFSET_TABLE_REGNUM thruout.
	* config/rs6000/rs6000.md: Likewise.
	* config/rs6000/darwin.h: Likewise.

From-SVN: r51671
This commit is contained in:
Franz Sirl 2002-03-31 22:12:27 +00:00 • committed by Franz Sirl
parent 3bf1e98453
commit 1db0243780
5 changed files with 42 additions and 27 deletions
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11
gcc/ChangeLog
View file

@ -1,3 +1,14 @@
2002-03-31 Franz Sirl <Franz.Sirl-kernel@lauterbach.com>
* config/rs6000/rs6000.h (RS6000_PIC_OFFSET_TABLE_REGNUM): New.
(PIC_OFFSET_TABLE_REGNUM): Use it and return INVALID_REGNUM if
!flag_pic.
(CONDITIONAL_REGISTER_USAGE): Adjust accordingly.
* config/rs6000/rs6000.h: Use RS6000_PIC_OFFSET_TABLE_REGNUM instead
of PIC_OFFSET_TABLE_REGNUM thruout.
* config/rs6000/rs6000.md: Likewise.
* config/rs6000/darwin.h: Likewise.
Sun Mar 31 14:43:24 2002 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
* emit-rtl.c (adjust_address_1, offset_address): Cast value to

4
gcc/config/rs6000/darwin.h
View file

@ -60,8 +60,8 @@ Boston, MA 02111-1307, USA. */
#undef FRAME_POINTER_REGNUM
#define FRAME_POINTER_REGNUM 30
#undef PIC_OFFSET_TABLE_REGNUM
#define PIC_OFFSET_TABLE_REGNUM 31
#undef RS6000_PIC_OFFSET_TABLE_REGNUM
#define RS6000_PIC_OFFSET_TABLE_REGNUM 31
/* Pad the outgoing args area to 16 bytes instead of the usual 8. */

28
gcc/config/rs6000/rs6000.c
View file

@ -6095,8 +6095,8 @@ rs6000_got_register (value)
/* The second flow pass currently (June 1999) can't update
regs_ever_live without disturbing other parts of the compiler, so
update it here to make the prolog/epilogue code happy. */
if (no_new_pseudos && ! regs_ever_live[PIC_OFFSET_TABLE_REGNUM])
regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1;
if (no_new_pseudos && ! regs_ever_live[RS6000_PIC_OFFSET_TABLE_REGNUM])
regs_ever_live[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1;
current_function_uses_pic_offset_table = 1;
@ -7400,7 +7400,7 @@ first_reg_to_save ()
for (first_reg = 13; first_reg <= 31; first_reg++)
if (regs_ever_live[first_reg]
&& (! call_used_regs[first_reg]
|| (first_reg == PIC_OFFSET_TABLE_REGNUM
|| (first_reg == RS6000_PIC_OFFSET_TABLE_REGNUM
&& ((DEFAULT_ABI == ABI_V4 && flag_pic == 1)
|| (DEFAULT_ABI == ABI_DARWIN && flag_pic)))))
break;
@ -7454,8 +7454,8 @@ first_reg_to_save ()
#if TARGET_MACHO
if (flag_pic && current_function_uses_pic_offset_table &&
(first_reg > PIC_OFFSET_TABLE_REGNUM))
return PIC_OFFSET_TABLE_REGNUM;
(first_reg > RS6000_PIC_OFFSET_TABLE_REGNUM))
return RS6000_PIC_OFFSET_TABLE_REGNUM;
#endif
return first_reg;
@ -7667,13 +7667,13 @@ rs6000_stack_info ()
/* Calculate which registers need to be saved & save area size. */
info_ptr->first_gp_reg_save = first_reg_to_save ();
/* Assume that we will have to save PIC_OFFSET_TABLE_REGNUM,
/* Assume that we will have to save RS6000_PIC_OFFSET_TABLE_REGNUM,
even if it currently looks like we won't. */
if (((TARGET_TOC && TARGET_MINIMAL_TOC)
|| (flag_pic == 1 && abi == ABI_V4)
|| (flag_pic && abi == ABI_DARWIN))
&& info_ptr->first_gp_reg_save > PIC_OFFSET_TABLE_REGNUM)
info_ptr->gp_size = reg_size * (32 - PIC_OFFSET_TABLE_REGNUM);
&& info_ptr->first_gp_reg_save > RS6000_PIC_OFFSET_TABLE_REGNUM)
info_ptr->gp_size = reg_size * (32 - RS6000_PIC_OFFSET_TABLE_REGNUM);
else
info_ptr->gp_size = reg_size * (32 - info_ptr->first_gp_reg_save);
@ -8090,7 +8090,7 @@ rs6000_emit_load_toc_table (fromprolog)
int fromprolog;
{
rtx dest;
dest = gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM);
dest = gen_rtx_REG (Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM);
if (TARGET_ELF && DEFAULT_ABI != ABI_AIX)
{
@ -8829,7 +8829,7 @@ rs6000_emit_prologue ()
for (i = 0; i < 32 - info->first_gp_reg_save; i++)
if ((regs_ever_live[info->first_gp_reg_save+i]
&& ! call_used_regs[info->first_gp_reg_save+i])
|| (i+info->first_gp_reg_save == PIC_OFFSET_TABLE_REGNUM
|| (i+info->first_gp_reg_save == RS6000_PIC_OFFSET_TABLE_REGNUM
&& ((DEFAULT_ABI == ABI_V4 && flag_pic == 1)
|| (DEFAULT_ABI == ABI_DARWIN && flag_pic))))
{
@ -8931,10 +8931,10 @@ rs6000_emit_prologue ()
RTX_FRAME_RELATED_P (insn) = 1;
}
/* If we are using PIC_OFFSET_TABLE_REGNUM, we need to set it up. */
/* If we are using RS6000_PIC_OFFSET_TABLE_REGNUM, we need to set it up. */
if ((TARGET_TOC && TARGET_MINIMAL_TOC && get_pool_size () != 0)
|| (DEFAULT_ABI == ABI_V4 && flag_pic == 1
&& regs_ever_live[PIC_OFFSET_TABLE_REGNUM]))
&& regs_ever_live[RS6000_PIC_OFFSET_TABLE_REGNUM]))
{
/* If emit_load_toc_table will use the link register, we need to save
it. We use R11 for this purpose because emit_load_toc_table
@ -8962,7 +8962,7 @@ rs6000_emit_prologue ()
rs6000_maybe_dead (emit_insn (gen_load_macho_picbase (dest)));
rs6000_maybe_dead (
emit_move_insn (gen_rtx_REG (Pmode, PIC_OFFSET_TABLE_REGNUM),
emit_move_insn (gen_rtx_REG (Pmode, RS6000_PIC_OFFSET_TABLE_REGNUM),
gen_rtx_REG (Pmode, LINK_REGISTER_REGNUM)));
}
}
@ -9204,7 +9204,7 @@ rs6000_emit_epilogue (sibcall)
for (i = 0; i < 32 - info->first_gp_reg_save; i++)
if ((regs_ever_live[info->first_gp_reg_save+i]
&& ! call_used_regs[info->first_gp_reg_save+i])
|| (i+info->first_gp_reg_save == PIC_OFFSET_TABLE_REGNUM
|| (i+info->first_gp_reg_save == RS6000_PIC_OFFSET_TABLE_REGNUM
&& ((DEFAULT_ABI == ABI_V4 && flag_pic == 1)
|| (DEFAULT_ABI == ABI_DARWIN && flag_pic))))
{

24
gcc/config/rs6000/rs6000.h
View file

@ -940,15 +940,18 @@ extern int rs6000_altivec_abi;
for (i = 32; i < 64; i++) \
fixed_regs[i] = call_used_regs[i] \
= call_really_used_regs[i] = 1; \
if (DEFAULT_ABI == ABI_V4 && flag_pic == 1) \
fixed_regs[PIC_OFFSET_TABLE_REGNUM] \
= call_used_regs[PIC_OFFSET_TABLE_REGNUM] \
= call_really_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
if (DEFAULT_ABI == ABI_DARWIN && flag_pic) \
global_regs[PIC_OFFSET_TABLE_REGNUM] \
= fixed_regs[PIC_OFFSET_TABLE_REGNUM] \
= call_used_regs[PIC_OFFSET_TABLE_REGNUM] \
= call_really_used_regs[PIC_OFFSET_TABLE_REGNUM] = 1; \
if (DEFAULT_ABI == ABI_V4 \
&& PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM \
&& flag_pic == 1) \
fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] \
= call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] \
= call_really_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1; \
if (DEFAULT_ABI == ABI_DARWIN \
&& PIC_OFFSET_TABLE_REGNUM != INVALID_REGNUM) \
global_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] \
= fixed_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] \
= call_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] \
= call_really_used_regs[RS6000_PIC_OFFSET_TABLE_REGNUM] = 1; \
if (! TARGET_ALTIVEC) \
{ \
for (i = FIRST_ALTIVEC_REGNO; i <= LAST_ALTIVEC_REGNO; ++i) \
@ -2080,7 +2083,8 @@ do { \
this macro is not defined, it is up to the machine-dependent files
to allocate such a register (if necessary). */
#define PIC_OFFSET_TABLE_REGNUM 30
#define RS6000_PIC_OFFSET_TABLE_REGNUM 30
#define PIC_OFFSET_TABLE_REGNUM (flag_pic ? RS6000_PIC_OFFSET_TABLE_REGNUM : INVALID_REGNUM)
#define TOC_REGISTER (TARGET_MINIMAL_TOC ? 30 : 2)

2
gcc/config/rs6000/rs6000.md
View file

@ -7606,7 +7606,7 @@
operands2[0] = operands[0];
operands2[1] = operands[1];
operands2[2] = operands[2];
operands2[3] = gen_rtx_REG (SImode, PIC_OFFSET_TABLE_REGNUM);
operands2[3] = gen_rtx_REG (SImode, RS6000_PIC_OFFSET_TABLE_REGNUM);
output_asm_insn (\"{l|lwz} %0,lo16(%2)(%1)\", operands);
/* We cannot rely on ha16(low half)==ha16(high half), alas,
although in practice it almost always is. */