[PATCH] D77384: [WebAssembly] Support single-floating-point immediate value

[Dan Gohman via Phabricator via llvm-commits]

sunfish added a comment.

On some 32-bit x86 hosts, particularly those that use x87 arithmetic, loading and storing with floating-point types can change the NaN bit pattern. To preserve the bit pattern reliably, `MCOperand` should represent floating-point immediates by representing the bits in `int32_t` for 32-bit and `int64_t` for 64-bit. Codegen and MC don't usually look at the value, but where they do need to interpret it as a floating-point value, they can reinterpret the bits on demand.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D77384/new/

https://reviews.llvm.org/D77384