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

i386.c: Include cselib.h.

Browse Source 
gcc/
	* config/i386/i386.c: Include cselib.h.
	(ix86_pic_register_p): New function.
	(ix86_delegitimize_address): Use it to check for the PIC register.

From-SVN: r140611
This commit is contained in:
Richard Sandiford 2008-09-23 18:29:14 +00:00 committed by Richard Sandiford
parent a9e6fc5a60
commit 411e138af2
2 changed files with 24 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/ChangeLog
View File

@ -1,3 +1,9 @@
2008-09-23 Richard Sandiford <rdsandiford@googlemail.com>
* config/i386/i386.c: Include cselib.h.
(ix86_pic_register_p): New function.
(ix86_delegitimize_address): Use it to check for the PIC register.
2008-09-23 Richard Sandiford <rdsandiford@googlemail.com>
* doc/tm.texi (FIND_BASE_TERM): Expand documentation.

24
gcc/config/i386/i386.c
View File

@ -53,6 +53,7 @@ along with GCC; see the file COPYING3. If not see
#include "df.h"
#include "tm-constrs.h"
#include "params.h"
#include "cselib.h"
static int x86_builtin_vectorization_cost (bool);
static rtx legitimize_dllimport_symbol (rtx, bool);
@ -9966,6 +9967,20 @@ i386_output_dwarf_dtprel (FILE *file, int size, rtx x)
}
}
/* Return true if X is a representation of the PIC register. This copes
with calls from ix86_find_base_term, where the register might have
been replaced by a cselib value. */
static bool
ix86_pic_register_p (rtx x)
{
if (GET_CODE (x) == VALUE)
return (pic_offset_table_rtx
&& rtx_equal_for_cselib_p (x, pic_offset_table_rtx));
else
return REG_P (x) && REGNO (x) == PIC_OFFSET_TABLE_REGNUM;
}
/* In the name of slightly smaller debug output, and to cater to
general assembler lossage, recognize PIC+GOTOFF and turn it back
into a direct symbol reference.
@ -10004,19 +10019,16 @@ ix86_delegitimize_address (rtx orig_x)
|| GET_CODE (XEXP (x, 1)) != CONST)
return orig_x;
if (REG_P (XEXP (x, 0))
&& REGNO (XEXP (x, 0)) == PIC_OFFSET_TABLE_REGNUM)
if (ix86_pic_register_p (XEXP (x, 0)))
/* %ebx + GOT/GOTOFF */
;
else if (GET_CODE (XEXP (x, 0)) == PLUS)
{
/* %ebx + %reg * scale + GOT/GOTOFF */
reg_addend = XEXP (x, 0);
if (REG_P (XEXP (reg_addend, 0))
&& REGNO (XEXP (reg_addend, 0)) == PIC_OFFSET_TABLE_REGNUM)
if (ix86_pic_register_p (XEXP (reg_addend, 0)))
reg_addend = XEXP (reg_addend, 1);
else if (REG_P (XEXP (reg_addend, 1))
&& REGNO (XEXP (reg_addend, 1)) == PIC_OFFSET_TABLE_REGNUM)
else if (ix86_pic_register_p (XEXP (reg_addend, 1)))
reg_addend = XEXP (reg_addend, 0);
else
return orig_x;