OpenE2K/gcc
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

i386.md (UNSPEC_GOTNTPOFF, [...]): New.

Browse Source 
* config/i386/i386.md (UNSPEC_GOTNTPOFF, UNSPEC_INDNTPOFF): New.
	* config/i386/i386.c (legitimate_pic_address_disp_p): Handle
	UNSPEC_GOTNTPOFF and UNSPEC_INDNTPOFF like UNSPEC_GOTTPOFF.
	(legitimate_address_p): Likewise.
	(legitimize_address): Use @gotntpoff and @indntpoff.
	(output_pic_addr_const): Handle UNSPEC_GOTNTPOFF and UNSPEC_INDNTPOFF.
	(output_addr_const_extra): Likewise.

From-SVN: r57373
This commit is contained in:
Jakub Jelinek 2002-09-21 00:08:34 +02:00 committed by Jakub Jelinek
parent a9b2f05974
commit dea7379019
3 changed files with 50 additions and 14 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2002-09-20 Jakub Jelinek <jakub@redhat.com>
* config/i386/i386.md (UNSPEC_GOTNTPOFF, UNSPEC_INDNTPOFF): New.
* config/i386/i386.c (legitimate_pic_address_disp_p): Handle
UNSPEC_GOTNTPOFF and UNSPEC_INDNTPOFF like UNSPEC_GOTTPOFF.
(legitimate_address_p): Likewise.
(legitimize_address): Use @gotntpoff and @indntpoff.
(output_pic_addr_const): Handle UNSPEC_GOTNTPOFF and UNSPEC_INDNTPOFF.
(output_addr_const_extra): Likewise.
2002-09-20 Jim Wilson <wilson@redhat.com>
* combine.c (try_combine): When split an instruction pair, where the

52
gcc/config/i386/i386.c
View File

@ -5077,6 +5077,8 @@ legitimate_pic_address_disp_p (disp)
case UNSPEC_GOTOFF:
return local_symbolic_operand (XVECEXP (disp, 0, 0), Pmode);
case UNSPEC_GOTTPOFF:
case UNSPEC_GOTNTPOFF:
case UNSPEC_INDNTPOFF:
if (saw_plus)
return false;
return initial_exec_symbolic_operand (XVECEXP (disp, 0, 0), Pmode);
@ -5258,6 +5260,8 @@ legitimate_address_p (mode, addr, strict)
goto is_legitimate_pic;
case UNSPEC_GOTTPOFF:
case UNSPEC_GOTNTPOFF:
case UNSPEC_INDNTPOFF:
case UNSPEC_NTPOFF:
case UNSPEC_DTPOFF:
break;
@ -5664,32 +5668,36 @@ legitimize_address (x, oldx, mode)
regs_ever_live[PIC_OFFSET_TABLE_REGNUM] = 1;
pic = pic_offset_table_rtx;
}
else
else if (!TARGET_GNU_TLS)
{
pic = gen_reg_rtx (Pmode);
emit_insn (gen_set_got (pic));
}
else
pic = NULL;
base = get_thread_pointer ();
off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x), UNSPEC_GOTTPOFF);
off = gen_rtx_UNSPEC (Pmode, gen_rtvec (1, x),
!TARGET_GNU_TLS
? UNSPEC_GOTTPOFF
: flag_pic ? UNSPEC_GOTNTPOFF
: UNSPEC_INDNTPOFF);
off = gen_rtx_CONST (Pmode, off);
off = gen_rtx_PLUS (Pmode, pic, off);
if (flag_pic || !TARGET_GNU_TLS)
off = gen_rtx_PLUS (Pmode, pic, off);
off = gen_rtx_MEM (Pmode, off);
RTX_UNCHANGING_P (off) = 1;
set_mem_alias_set (off, ix86_GOT_alias_set ());
/* Damn Sun for specifing a set of dynamic relocations without
considering the two-operand nature of the architecture!
We'd be much better off with a "GOTNTPOFF" relocation that
already contained the negated constant. */
/* ??? Using negl and reg+reg addressing appears to be a lose
size-wise. The negl is two bytes, just like the extra movl
incurred by the two-operand subl, but reg+reg addressing
uses the two-byte modrm form, unlike plain reg. */
dest = gen_reg_rtx (Pmode);
emit_insn (gen_subsi3 (dest, base, off));
if (TARGET_GNU_TLS)
{
emit_move_insn (dest, off);
return gen_rtx_PLUS (Pmode, base, dest);
}
else
emit_insn (gen_subsi3 (dest, base, off));
break;
case TLS_MODEL_LOCAL_EXEC:
@ -5970,6 +5978,7 @@ output_pic_addr_const (file, x, code)
fputs ("@GOTPCREL(%rip)", file);
break;
case UNSPEC_GOTTPOFF:
/* FIXME: This might be @TPOFF in Sun ld too. */
fputs ("@GOTTPOFF", file);
break;
case UNSPEC_TPOFF:
@ -5981,6 +5990,12 @@ output_pic_addr_const (file, x, code)
case UNSPEC_DTPOFF:
fputs ("@DTPOFF", file);
break;
case UNSPEC_GOTNTPOFF:
fputs ("@GOTNTPOFF", file);
break;
case UNSPEC_INDNTPOFF:
fputs ("@INDNTPOFF", file);
break;
default:
output_operand_lossage ("invalid UNSPEC as operand");
break;
@ -6890,6 +6905,7 @@ output_addr_const_extra (file, x)
{
case UNSPEC_GOTTPOFF:
output_addr_const (file, op);
/* FIXME: This might be @TPOFF in Sun ld. */
fputs ("@GOTTPOFF", file);
break;
case UNSPEC_TPOFF:
@ -6904,6 +6920,14 @@ output_addr_const_extra (file, x)
output_addr_const (file, op);
fputs ("@DTPOFF", file);
break;
case UNSPEC_GOTNTPOFF:
output_addr_const (file, op);
fputs ("@GOTNTPOFF", file);
break;
case UNSPEC_INDNTPOFF:
output_addr_const (file, op);
fputs ("@INDNTPOFF", file);
break;
default:
return false;

2
gcc/config/i386/i386.md
View File

@ -61,6 +61,8 @@
(UNSPEC_TPOFF 4)
(UNSPEC_NTPOFF 5)
(UNSPEC_DTPOFF 6)
(UNSPEC_GOTNTPOFF 7)
(UNSPEC_INDNTPOFF 8)
; Prologue support
(UNSPEC_STACK_PROBE 10)