ckoparkar wrote: > It seems the result got folded despite potential changes to the rounding mode > at run time?
The constexpr evaluator uses [getActiveRoundingMode](https://github.com/llvm/llvm-project/blob/main/clang/lib/AST/ExprConstant.cpp#L2765) to get the current rounding mode; it is used to evaluate fma, along with binary ops like *, +, -, etc. Here are the tests for fma with various rounding modes: [clang/test/CodeGen/rounding-math.cpp](https://github.com/llvm/llvm-project/blob/main/clang/test/CodeGen/rounding-math.cpp#L15). > Also, the FENV_ROUND pragma is working despite the warning. Tests should be > added. Is your suggestion to add tests with different rounding modes? https://github.com/llvm/llvm-project/pull/158048 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
