[llvm-dev] Reading FP Environment status from IR

[raghesh via llvm-dev]

Hi All,

We would like to prevent certain optimizations (like hoisting an fdiv
instruction) when the application has set the floating point environment
flags using APIs like
feraiseexcept <https://en.cppreference.com/w/cpp/numeric/fenv/feraiseexcept>
 or
if it uses  #pragma STDC FENV_ACCESS
<https://en.cppreference.com/w/cpp/preprocessor/impl>.

Is there any way to know this at LLVM-IR level?

Regards,
Raghesh
------------------------------
Raghesh Aloor
AMD India Pvt. Ltd.
Bengaluru.
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