A recent change added UNSPEC to the CCMP patterns to stop combine optimizing

A recent change added UNSPEC to the CCMP patterns to stop combine optimizing
the immediate in a rare case.  This requires a fix to the CCMP cost
calculation as the CCMP instruction with unspec is no longer recognized.
Fix the ccmp_1.c test by adding -ffinite-math-only so FCCMPE is emitted on
relational compares.

2016-01-28  Wilco Dijkstra  <wdijkstr@arm.com>

    gcc/
	* config/aarch64/aarch64.c (aarch64_if_then_else_costs):
	Remove CONST_INT_P check in CCMP cost calculation.

    gcc/testsuite/
	* gcc.target/aarch64/ccmp_1.c: Fix test issue.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@232930 138bc75d-0d04-0410-961f-82ee72b054a4