r230618 - in /trunk/gcc: ChangeLog testsuite/Ch...

[law@gcc.gnu.org]

Author: law
Date: Thu Nov 19 17:30:24 2015
New Revision: 230618

URL: https://gcc.gnu.org/viewcvs?rev=230618&root=gcc&view=rev
Log:
[Patch, vrp] Allow VRP type conversion folding only for widenings upto word mode

	* tree.h (desired_pro_or_demotion_p): New function.
	* tree-vrp.c (simplify_cond_using_ranges): Call it.

	* gcc.dg/tree-ssa/vrp98.c: New testcase.
	* gcc.target/avr/uint8-single-reg.c: New testcase.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp98.c
    trunk/gcc/testsuite/gcc.target/avr/uint8-single-reg.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-vrp.c
    trunk/gcc/tree.h