r261264 - in /trunk/gcc: ChangeLog testsuite/Ch...

[jakub@gcc.gnu.org]

Author: jakub
Date: Thu Jun  7 07:41:18 2018
New Revision: 261264

URL: https://gcc.gnu.org/viewcvs?rev=261264&root=gcc&view=rev
Log:
	PR tree-optimization/69615
	* tree-ssa-reassoc.c (optimize_range_tests_var_bound): If rhs2 is lhs
	of a cast from a same precision integral SSA_NAME in a bb dominated
	by first_bb, retry with rhs2 set to the rhs1 of the cast.  Don't emit
	cast to utype if rhs2 has already a compatible type.

	* gcc.dg/tree-ssa/pr69615.c: New test.

Added:
    trunk/gcc/testsuite/gcc.dg/tree-ssa/pr69615.c
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/testsuite/ChangeLog
    trunk/gcc/tree-ssa-reassoc.c