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md.texi (Standard Names): Document additional dependency on fix pattern.

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2004-02-19  Aldy Hernandez  <aldyh@redhat.com>

        * doc/md.texi (Standard Names): Document additional dependency on
        fix pattern.

        * optabs.c (ftruncify): Remove.
        (expand_fix): Manually inline ftruncify above.
        (can_fix_p): Add FIXME note.

From-SVN: r78116
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Aldy Hernandez 2004-02-19 18:50:57 +00:00 committed by Aldy Hernandez
parent c6e9f0ebd9
commit 0e1d7f3250
3 changed files with 22 additions and 11 deletions
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9
gcc/ChangeLog
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@ -1,3 +1,12 @@
2004-02-19 Aldy Hernandez <aldyh@redhat.com>
* doc/md.texi (Standard Names): Document additional dependency on
fix pattern.
* optabs.c (ftruncify): Remove.
(expand_fix): Manually inline ftruncify above.
(can_fix_p): Add FIXME note.
2004-02-19 Aldy Hernandez <aldyh@redhat.com>
* config/rs6000/spe.md (spe_fixunssfsi2): Rename to

3
gcc/doc/md.texi
View File

@ -2865,6 +2865,9 @@ point mode @var{n} as a signed number and store in operand 0 (which
has mode @var{n}). This instruction's result is defined only when
the value of operand 1 is an integer.
If the machine description defines this pattern, it also needs to
define the @code{ftrunc} pattern.
@cindex @code{fixuns@var{mn}2} instruction pattern
@item @samp{fixuns@var{m}@var{n}2}
Convert operand 1 (valid for floating point mode @var{m}) to fixed

21
gcc/optabs.c
View File

@ -105,7 +105,6 @@ static void prepare_cmp_insn (rtx *, rtx *, enum rtx_code *, rtx,
static enum insn_code can_fix_p (enum machine_mode, enum machine_mode, int,
int *);
static enum insn_code can_float_p (enum machine_mode, enum machine_mode, int);
static rtx ftruncify (rtx);
static optab new_optab (void);
static convert_optab new_convert_optab (void);
static inline optab init_optab (enum rtx_code);
@ -4434,6 +4433,9 @@ can_fix_p (enum machine_mode fixmode, enum machine_mode fltmode,
return icode;
}
/* FIXME: This requires a port to define both FIX and FTRUNC pattern
for this to work. We need to rework the fix* and ftrunc* patterns
and documentation. */
tab = unsignedp ? ufix_optab : sfix_optab;
icode = tab->handlers[fixmode][fltmode].insn_code;
if (icode != CODE_FOR_nothing
@ -4673,15 +4675,8 @@ expand_float (rtx to, rtx from, int unsignedp)
}
}
/* expand_fix: generate code to convert FROM to fixed point
and store in TO. FROM must be floating point. */
static rtx
ftruncify (rtx x)
{
rtx temp = gen_reg_rtx (GET_MODE (x));
return expand_unop (GET_MODE (x), ftrunc_optab, x, temp, 0);
}
/* Generate code to convert FROM to fixed point and store in TO. FROM
must be floating point. */
void
expand_fix (rtx to, rtx from, int unsignedp)
@ -4716,7 +4711,11 @@ expand_fix (rtx to, rtx from, int unsignedp)
from = convert_to_mode (fmode, from, 0);
if (must_trunc)
from = ftruncify (from);
{
rtx temp = gen_reg_rtx (GET_MODE (from));
from = expand_unop (GET_MODE (from), ftrunc_optab, from,
temp, 0);
}
if (imode != GET_MODE (to))
target = gen_reg_rtx (imode);