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simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from old and new operands in <', 3' and `b'.

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2001-07-19  Alexandre Oliva  <aoliva@redhat.com>

	* simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from
	old and new operands in `<', `3' and `b'.

From-SVN: r44164
This commit is contained in:
Alexandre Oliva 2001-07-19 22:42:07 +00:00 committed by Kazu Hirata
parent e1772ac058
commit 0248ce0547
2 changed files with 34 additions and 12 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2001-07-19 Alexandre Oliva <aoliva@redhat.com>
* simplify-rtx.c (simplify_replace_rtx): Try to obtain mode from
old and new operands in `<', `3' and `b'.
2001-07-19 Neil Booth <neil@daikokuya.demon.co.uk>
* Makefile.in (emit-rtl.o, c-decl.o): Depend on debug.h.

41
gcc/simplify-rtx.c
View File

@ -247,21 +247,38 @@ simplify_replace_rtx (x, old, new)
simplify_replace_rtx (XEXP (x, 0), old, new),
simplify_replace_rtx (XEXP (x, 1), old, new));
case '<':
return
simplify_gen_relational (code, mode,
(GET_MODE (XEXP (x, 0)) != VOIDmode
? GET_MODE (XEXP (x, 0))
: GET_MODE (XEXP (x, 1))),
simplify_replace_rtx (XEXP (x, 0), old, new),
simplify_replace_rtx (XEXP (x, 1), old, new));
{
enum machine_mode op_mode = (GET_MODE (XEXP (x, 0)) != VOIDmode
? GET_MODE (XEXP (x, 0))
: GET_MODE (XEXP (x, 1)));
rtx op0 = simplify_replace_rtx (XEXP (x, 0), old, new);
rtx op1 = simplify_replace_rtx (XEXP (x, 1), old, new);
return
simplify_gen_relational (code, mode,
(op_mode != VOIDmode
? op_mode
: GET_MODE (op0) != VOIDmode
? GET_MODE (op0)
: GET_MODE (op1)),
op0, op1);
}
case '3':
case 'b':
return
simplify_gen_ternary (code, mode, GET_MODE (XEXP (x, 0)),
simplify_replace_rtx (XEXP (x, 0), old, new),
simplify_replace_rtx (XEXP (x, 1), old, new),
simplify_replace_rtx (XEXP (x, 2), old, new));
{
enum machine_mode op_mode = GET_MODE (XEXP (x, 0));
rtx op0 = simplify_replace_rtx (XEXP (x, 0), old, new);
return
simplify_gen_ternary (code, mode,
(op_mode != VOIDmode
? op_mode
: GET_MODE (op0)),
op0,
simplify_replace_rtx (XEXP (x, 1), old, new),
simplify_replace_rtx (XEXP (x, 2), old, new));
}
case 'x':
/* The only case we try to handle is a SUBREG. */