r236040 - in /trunk/gcc: ChangeLog tree-affine.c

[rsandifo@gcc.gnu.org]

Author: rsandifo
Date: Mon May  9 15:29:03 2016
New Revision: 236040

URL: https://gcc.gnu.org/viewcvs?rev=236040&root=gcc&view=rev
Log:
Missing pointer dereference in tree-affine.c

wide_int_constant_multiple_p used:

          if (*mult_set && mult != 0)
            return false;

to check whether we had previously seen a nonzero multiple, but "mult" is
a pointer to the previous value rather than the previous value itself.

Noticed by inspection while working on another patch, so I don't have a
testcase.  I tried adding an assert for combinations that were wrongly
rejected before but it didn't trigger during a bootstrap and regtest.

Tested on x86_64-linux-gnu.

gcc/
	* tree-affine.c (wide_int_constant_multiple_p): Add missing
	pointer dereference.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/tree-affine.c