* gcc.dg/torture/builtin-math-2.c: Add checks for asin, acos,
acosh and atanh.
* gcc.dg/torture/builtin-math-3.c (TESTIT): Append 'F' and 'L'
floating point modifiers to arguments passed to float and long
double functions respectively. Update all callers to use floating
point numbers, not integers. Add tests for exp, exp2 and
exp10/pow10.
From-SVN: r118012
