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reload1.c (gen_reload:SECONDARY_MEMORY_NEEDED): Handle SUBREG. 

2002-10-01  David S. Miller  <davem@redhat.com>
	    Jan Hubicka <jh@suse.cz>

	* reload1.c (gen_reload:SECONDARY_MEMORY_NEEDED): Handle SUBREG.
	* reload.c (push_reload:SECONDARY_MEMORY_NEEDED): Likewise.

Co-Authored-By: Jan Hubicka <jh@suse.cz>

From-SVN: r57721
This commit is contained in:
David S. Miller 2002-10-01 20:40:35 -07:00 committed by David S. Miller
parent e2e4a99337
commit 5765b16f48
3 changed files with 38 additions and 17 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2002-10-01 David S. Miller <davem@redhat.com>
Jan Hubicka <jh@suse.cz>
* reload1.c (gen_reload:SECONDARY_MEMORY_NEEDED): Handle SUBREG.
* reload.c (push_reload:SECONDARY_MEMORY_NEEDED): Likewise.
2002-09-30 Bob Wilson <bob.wilson@acm.org>
* config/xtensa/xtensa.h (REG_CLASS_NAMES, REG_CLASS_CONTENTS):

32
gcc/reload.c
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@ -1283,12 +1283,17 @@ push_reload (in, out, inloc, outloc, class,
So add an additional reload. */
#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)),
class, inmode))
get_secondary_mem (in, inmode, opnum, type);
{
int regnum;
/* If a memory location is needed for the copy, make one. */
if (in != 0
&& ((regnum = true_regnum (in)) >= 0)
&& regnum < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (regnum),
class, inmode))
get_secondary_mem (in, inmode, opnum, type);
}
#endif
i = n_reloads;
@ -1314,11 +1319,16 @@ 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)),
outmode))
get_secondary_mem (out, outmode, opnum, type);
{
int regnum;
if (out != 0
&& ((regnum = true_regnum (out)) >= 0)
&& regnum < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (class, REGNO_REG_CLASS (regnum),
outmode))
get_secondary_mem (out, outmode, opnum, type);
}
#endif
}
else

17
gcc/reload1.c
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@ -7354,6 +7354,9 @@ gen_reload (out, in, opnum, type)
{
rtx last = get_last_insn ();
rtx tem;
#ifdef SECONDARY_MEMORY_NEEDED
int in_regnum, out_regnum;
#endif
/* If IN is a paradoxical SUBREG, remove it and try to put the
opposite SUBREG on OUT. Likewise for a paradoxical SUBREG on OUT. */
@ -7516,20 +7519,22 @@ 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 ((in_regnum = true_regnum (in)) >= 0
&& in_regnum < FIRST_PSEUDO_REGISTER
&& (out_regnum = true_regnum (out)) >= 0
&& out_regnum < FIRST_PSEUDO_REGISTER
&& SECONDARY_MEMORY_NEEDED (REGNO_REG_CLASS (in_regnum),
REGNO_REG_CLASS (out_regnum),
GET_MODE (out)))
{
/* Get the memory to use and rewrite both registers to its mode. */
rtx loc = get_secondary_mem (in, GET_MODE (out), opnum, type);
if (GET_MODE (loc) != GET_MODE (out))
out = gen_rtx_REG (GET_MODE (loc), REGNO (out));
out = gen_rtx_REG (GET_MODE (loc), out_regnum);
if (GET_MODE (loc) != GET_MODE (in))
in = gen_rtx_REG (GET_MODE (loc), REGNO (in));
in = gen_rtx_REG (GET_MODE (loc), in_regnum);
gen_reload (loc, in, opnum, type);
gen_reload (out, loc, opnum, type);