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m68hc11.c (m68hc11_gen_highpart): Don't use gen_highpart.

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* config/m68hc11/m68hc11.c (m68hc11_gen_highpart): Don't use
	gen_highpart.

From-SVN: r44206
This commit is contained in:
Stephane Carrez 2001-07-20 21:34:56 +02:00 committed by Stephane Carrez
parent 1c432a87d9
commit d74e9142ac
2 changed files with 24 additions and 7 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-07-20 Stephane Carrez <Stephane.Carrez@worldnet.fr>
* config/m68hc11/m68hc11.c (m68hc11_gen_highpart): Don't use
gen_highpart.
2001-07-20 Daniel Berlin <dan@cgsoftware.com>
* params.def: Change default max inline insns to 100.

26
gcc/config/m68hc11/m68hc11.c
View File

@ -1922,18 +1922,30 @@ m68hc11_gen_highpart (mode, x)
}
/* gen_highpart crashes when it is called with a SUBREG. */
if (GET_CODE (x) == SUBREG && SUBREG_BYTE (x) != 0)
if (GET_CODE (x) == SUBREG)
{
return gen_rtx (SUBREG, mode, XEXP (x, 0), XEXP (x, 1));
}
x = gen_highpart (mode, x);
if (GET_CODE (x) == REG)
{
if (REGNO (x) < FIRST_PSEUDO_REGISTER)
return gen_rtx (REG, mode, REGNO (x));
else
return gen_rtx_SUBREG (mode, x, 0);
}
/* Return a different rtx to avoid to share it in several insns
(when used by a split pattern). Sharing addresses within
a MEM breaks the Z register replacement (and reloading). */
if (GET_CODE (x) == MEM)
x = copy_rtx (x);
return x;
{
x = change_address (x, mode, 0);
/* Return a different rtx to avoid to share it in several insns
(when used by a split pattern). Sharing addresses within
a MEM breaks the Z register replacement (and reloading). */
if (GET_CODE (x) == MEM)
x = copy_rtx (x);
return x;
}
abort ();
}