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reload.c (push_reload): Handle subregs and secondary memory. 

* reload.c (push_reload): Handle subregs and secondary memory.
	* reload1.c (gen_reload): Likewise.

	* jump.c (reg_or_subregno): New function.
	* rtl.h (reg_or_subregno): Declare
	* unroll.c (find_splittable_givs): Handle subregs.

From-SVN: r57663
This commit is contained in:
Jan Hubicka 2002-09-30 21:35:17 +02:00 committed by Jan Hubicka
parent 5a9a196102
commit 344b78b848
6 changed files with 37 additions and 12 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
Mon Sep 30 21:33:23 CEST 2002 Jan Hubicka <jh@suse.cz>
* reload.c (push_reload): Handle subregs and secondary memory.
* reload1.c (gen_reload): Likewise.
* jump.c (reg_or_subregno): New function.
* rtl.h (reg_or_subregno): Declare
* unroll.c (find_splittable_givs): Handle subregs.
2002-09-30 Mark Mitchell <mark@codesourcery.com>
* store-layout.c (finish_record_layout): Add free_p parameter.

12
gcc/jump.c
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@ -2410,3 +2410,15 @@ true_regnum (x)
}
return -1;
}
/* Return regno of the register REG and handle subregs too. */
unsigned int
reg_or_subregno (reg)
rtx reg;
{
if (REG_P (reg))
return REGNO (reg);
if (GET_CODE (reg) == SUBREG)
return REGNO (SUBREG_REG (reg));
abort ();
}

13
gcc/reload.c
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@ -1285,9 +1285,9 @@ push_reload (in, out, inloc, outloc, class,
#ifdef SECONDARY_MEMORY_NEEDED
/* If a memory location is needed for the copy, make one. */
if (in != 0 && GET_CODE (in) == REG
&& REGNO (in) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (REGNO (in)),
if (in != 0 && (GET_CODE (in) == REG || GET_CODE (in) == SUBREG)
&& reg_or_subregno (in) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (reg_or_subregno (in)),
class, inmode))
get_secondary_mem (in, inmode, opnum, type);
#endif
@ -1315,9 +1315,10 @@ push_reload (in, out, inloc, outloc, class,
n_reloads++;
#ifdef SECONDARY_MEMORY_NEEDED
if (out != 0 && GET_CODE (out) == REG
&& REGNO (out) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (class, REGNO_REG_CLASS (REGNO (out)),
if (out != 0 && (GET_CODE (out) == REG || GET_CODE (out) == SUBREG)
&& reg_or_subregno (out) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (class,
REGNO_REG_CLASS (reg_or_subregno (out)),
outmode))
get_secondary_mem (out, outmode, opnum, type);
#endif

10
gcc/reload1.c
View File

@ -7532,10 +7532,12 @@ gen_reload (out, in, opnum, type)
#ifdef SECONDARY_MEMORY_NEEDED
/* If we need a memory location to do the move, do it that way. */
else if (GET_CODE (in) == REG && REGNO (in) < FIRST_PSEUDO_REGISTER
&& GET_CODE (out) == REG && REGNO (out) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (REGNO (in)),
REGNO_REG_CLASS (REGNO (out)),
else if ((GET_CODE (in) == REG || GET_CODE (in) == SUBREG)
&& reg_or_subregno (in) < FIRST_PSEUDO_REGISTER
&& (GET_CODE (out) == REG || GET_CODE (out) == SUBREG)
&& reg_or_subregno (out) < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (reg_or_subregno (in)),
REGNO_REG_CLASS (reg_or_subregno (out)),
GET_MODE (out)))
{
/* Get the memory to use and rewrite both registers to its mode. */

1
gcc/rtl.h
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@ -1943,6 +1943,7 @@ extern int invert_jump_1 PARAMS ((rtx, rtx));
extern int invert_jump PARAMS ((rtx, rtx, int));
extern int rtx_renumbered_equal_p PARAMS ((rtx, rtx));
extern int true_regnum PARAMS ((rtx));
extern unsigned int reg_or_subregno PARAMS ((rtx));
extern int redirect_jump_1 PARAMS ((rtx, rtx));
extern int redirect_jump PARAMS ((rtx, rtx, int));
extern void rebuild_jump_labels PARAMS ((rtx));

4
gcc/unroll.c
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@ -2822,7 +2822,7 @@ find_splittable_givs (loop, bl, unroll_type, increment, unroll_number)
value = tem;
}
splittable_regs[REGNO (v->new_reg)] = value;
splittable_regs[reg_or_subregno (v->new_reg)] = value;
}
else
continue;
@ -2856,7 +2856,7 @@ find_splittable_givs (loop, bl, unroll_type, increment, unroll_number)
if (! v->ignore)
count = REG_IV_CLASS (ivs, REGNO (v->src_reg))->biv_count;
splittable_regs_updates[REGNO (v->new_reg)] = count;
splittable_regs_updates[reg_or_subregno (v->new_reg)] = count;
}
result++;