[llvm] [SLP]Initial support for copyables in fmuladd intrinsic (PR #211245)

[Alexey Bataev via llvm-commits]

alexey-bataev wrote:

> This ends up triggers assertions in a lot of projects, when building for ARM.
> 
> Reduced reproducer:
> 
> ```c
> float a, b, e;
> int c, d;
> void f() { e = c * b + d + a; }
> ```
> 
> ```
> $ clang -target armv7-linux-gnueabihf -c -O2 repro.c
> clang: ../lib/IR/Instruction.cpp:673: bool llvm::Instruction::isFast() const
> : Assertion `isa<FPMathOperator>(this) && "getting fast-math flag on invalid
>  op"' failed.
> ```

Thanks, will fix ASAP

https://github.com/llvm/llvm-project/pull/211245