re PR tree-optimization/49715 (Could do more efficient unsigned-to-float to conversions based on range information)
2011-07-25 Richard Guenther <rguenther@suse.de>
PR tree-optimization/49715
* tree-vrp.c: Include expr.h and optabs.h.
(range_fits_type_): New function.
(simplify_float_conversion_using_ranges): Likewise.
(simplify_stmt_using_ranges): Call it.
* Makefile.in (tree-vrp.o): Add $(EXPR_H) and $(OPTABS_H) dependencies.
* optabs.c (can_float_p): Export.
* optabs.h (can_float_p): Declare.
* gcc.target/i386/pr49715-1.c: New testcase.
* gcc.target/i386/pr49715-2.c: Likewise.
From-SVN: r176735
