This is another problem I found working on a new target. In fold-const,
when folding conversions, there are two instances where mode bitsizes
are compared to type precisions. This fails to do the right thing if
mode precision and bitsize differ (which I believe they currently don't
on any target).
Bootstrapped and regression tested on i686-linux. Ok?
Bernd
* fold-const.c (fold_unary_loc): Use GET_MODE_PRECISION for
comparisons against TYPE_PRECISION.
Index: gcc/fold-const.c
===================================================================
--- gcc/fold-const.c (revision 365109)
+++ gcc/fold-const.c (working copy)
@@ -8586,7 +8586,7 @@ fold_unary_loc (location_t loc, enum tre
&& inter_prec >= inside_prec
&& (inter_float || inter_vec
|| inter_unsignedp == inside_unsignedp)
- && ! (final_prec != GET_MODE_BITSIZE (TYPE_MODE (type))
+ && ! (final_prec != GET_MODE_PRECISION (TYPE_MODE (type))
&& TYPE_MODE (type) == TYPE_MODE (inter_type))
&& ! final_ptr
&& (! final_vec || inter_prec == inside_prec))
@@ -8620,7 +8620,7 @@ fold_unary_loc (location_t loc, enum tre
== (final_unsignedp && final_prec > inter_prec))
&& ! (inside_ptr && inter_prec != final_prec)
&& ! (final_ptr && inside_prec != inter_prec)
- && ! (final_prec != GET_MODE_BITSIZE (TYPE_MODE (type))
+ && ! (final_prec != GET_MODE_PRECISION (TYPE_MODE (type))
&& TYPE_MODE (type) == TYPE_MODE (inter_type)))
return fold_build1_loc (loc, code, type, TREE_OPERAND (op0, 0));
}
