Fix floating-point exceptions with clang

Add optimization barriers to prevent constant folding and code moving
transformations.  Use opt_barrier_ and force_eval_ consistently to work
around fenv semantics breaking optimizations.
7 files changed
tree: b5b19aa8a7f6f4f675b6396787df61cc9dff0829
  1. auxiliary/
  2. math/
  3. test/
  4. .gitignore
  5. config.mk.dist
  6. LICENSE
  7. Makefile
  8. README