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convert.c (convert_to_real): Don't convert (float)floor(double d) to floorf((float)d).

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2005-10-05  Dale Johannesen  <dalej@apple.com>

        * convert.c (convert_to_real):  Don't convert
        (float)floor(double d) to floorf((float)d).

From-SVN: r105006
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Dale Johannesen 2005-10-05 17:29:41 +00:00 committed by Dale Johannesen
parent 8acdc22e8e
commit 9f85ecfe7f
2 changed files with 8 additions and 29 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-10-05 Dale Johannesen <dalej@apple.com>
* convert.c (convert_to_real): Don't convert
(float)floor(double d) to floorf((float)d).
2005-10-05 Daniel Jacobowitz <dan@codesourcery.com>
* config/arm/arm.md (insv): Use gen_int_mode in more places.

32
gcc/convert.c
View File

@ -200,35 +200,9 @@ convert_to_real (tree type, tree expr)
break;
}
}
if (optimize
&& (((fcode == BUILT_IN_FLOORL
|| fcode == BUILT_IN_CEILL
|| fcode == BUILT_IN_ROUNDL
|| fcode == BUILT_IN_RINTL
|| fcode == BUILT_IN_TRUNCL
|| fcode == BUILT_IN_NEARBYINTL)
&& (TYPE_MODE (type) == TYPE_MODE (double_type_node)
|| TYPE_MODE (type) == TYPE_MODE (float_type_node)))
|| ((fcode == BUILT_IN_FLOOR
|| fcode == BUILT_IN_CEIL
|| fcode == BUILT_IN_ROUND
|| fcode == BUILT_IN_RINT
|| fcode == BUILT_IN_TRUNC
|| fcode == BUILT_IN_NEARBYINT)
&& (TYPE_MODE (type) == TYPE_MODE (float_type_node)))))
{
tree fn = mathfn_built_in (type, fcode);
if (fn)
{
tree arg0 = strip_float_extensions (TREE_VALUE (TREE_OPERAND (expr,
1)));
tree arglist = build_tree_list (NULL_TREE,
fold (convert_to_real (type, arg0)));
return build_function_call_expr (fn, arglist);
}
}
/* This code formerly changed (float)floor(double d) to
floorf((float)d). This is incorrect, because (float)d uses
round-to-nearest and can round up to the next integer. */
/* Propagate the cast into the operation. */
if (itype != type && FLOAT_TYPE_P (type))