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by vlovich123 1093 days ago
AFAIK, the first three things you listed would be deterministic across compilers unless you enabled -ffast-math (which isn't what this is talking about) precisely for that reason. I believe the same applies to intrinsics and rounding modes but not sure, especially since the website talks about GCC vs clang differences for the latter.

[1] https://stackoverflow.com/questions/55974090/clang-gcc-only-...