This intrinsic implements IEEE-754 operation roundToIntegralTiesToEven,
and performs rounding to the nearest integer value, rounding halfway
cases to even. The intrinsic represents the missed case of IEEE-754
rounding operations and now llvm provides full support of the rounding
operations defined by the standard.
Differential Revision: https://reviews.llvm.org/D75670
Summary:
This extends the work done in [1], adding missing intrinsic lowering for floor, trunc, round and copysign.
[1] http://comments.gmane.org/gmane.comp.compilers.llvm.cvs/199372
Test Plan: Extended `test/ExecutionEngine/Interpreter/intrinsics.ll` to test the additional missing intrinsics. All tests pass.
Reviewers: dexonsmith
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D5120
llvm-svn: 216827
Serge Pavlov