2031fd6e46
S390x inline asm This adds register definitions and constraint codes for the s390x general and floating point registers necessary for fixing #85931; as well as a few tests. Further testing is needed, but I am a little unsure of what specific tests should be added to `src/test/assembly/asm/s390x.rs` to address this.
The codegen crate contains the code to convert from MIR into LLVM IR,
and then from LLVM IR into machine code. In general it contains code
that runs towards the end of the compilation process.
For more information about how codegen works, see the rustc dev guide.