diff options
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/expmed.c | 38 | ||||
| -rw-r--r-- | gcc/expr.h | 1 |
3 files changed, 5 insertions, 39 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 2f0fe91..f7210c4 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2006-01-28 Kazu Hirata <kazu@codesourcery.com> + + * expmed.c (const_mult_add_overflow_p): Remove. + * expr.h: Remove the prototype for const_mult_add_overflow_p. + 2006-01-28 David Edelsohn <edelsohn@gnu.org> * config/rs6000/aix43.h (SUBTARGET_OVERRIDE_OPTIONS): -msoft-float diff --git a/gcc/expmed.c b/gcc/expmed.c index c4797b8..1ad0949 100644 --- a/gcc/expmed.c +++ b/gcc/expmed.c @@ -5025,44 +5025,6 @@ make_tree (tree type, rtx x) } } -/* Check whether the multiplication X * MULT + ADD overflows. - X, MULT and ADD must be CONST_*. - MODE is the machine mode for the computation. - X and MULT must have mode MODE. ADD may have a different mode. - So can X (defaults to same as MODE). - UNSIGNEDP is nonzero to do unsigned multiplication. */ - -bool -const_mult_add_overflow_p (rtx x, rtx mult, rtx add, - enum machine_mode mode, int unsignedp) -{ - tree type, mult_type, add_type, result; - - type = lang_hooks.types.type_for_mode (mode, unsignedp); - - /* In order to get a proper overflow indication from an unsigned - type, we have to pretend that it's a sizetype. */ - mult_type = type; - if (unsignedp) - { - /* FIXME:It would be nice if we could step directly from this - type to its sizetype equivalent. */ - mult_type = build_distinct_type_copy (type); - TYPE_IS_SIZETYPE (mult_type) = 1; - } - - add_type = (GET_MODE (add) == VOIDmode ? mult_type - : lang_hooks.types.type_for_mode (GET_MODE (add), unsignedp)); - - result = fold_build2 (PLUS_EXPR, mult_type, - fold_build2 (MULT_EXPR, mult_type, - make_tree (mult_type, x), - make_tree (mult_type, mult)), - make_tree (add_type, add)); - - return TREE_CONSTANT_OVERFLOW (result); -} - /* Return an rtx representing the value of X * MULT + ADD. TARGET is a suggestion for where to store the result (an rtx). MODE is the machine mode for the computation. @@ -722,7 +722,6 @@ extern rtx extract_bit_field (rtx, unsigned HOST_WIDE_INT, unsigned HOST_WIDE_INT, int, rtx, enum machine_mode, enum machine_mode); extern rtx expand_mult (enum machine_mode, rtx, rtx, rtx, int); -extern bool const_mult_add_overflow_p (rtx, rtx, rtx, enum machine_mode, int); extern rtx expand_mult_add (rtx, rtx, rtx, rtx,enum machine_mode, int); extern rtx expand_mult_highpart_adjust (enum machine_mode, rtx, rtx, rtx, rtx, int); |