std::tie facilitates lexicographical comparisons through std::tuple's
built-in operator<.

After upgrading the default code model from small to medium on
LoongArch, function calls using expression may fail. This is because the
function call instruction has changed from `bl` to `pcalau18i + jirl`,
but `RuntimeDyld` does not handle out-of-range jumps for this
instruction sequence.

This patch fixes: #136561

Reviewed By: SixWeining

Pull Request: https://github.com/llvm/llvm-project/pull/136563

After implementing CFI instructions in the function prologue, LLDB
testing for RISC-V started failing due to insufficient relocations
(e.g., R_RISCV_SET8, R_RISCV_SET16).

This patch adds support for the necessary RISC-V relocations in MCJIT.

Reverts llvm/llvm-project#132587

Due to causing test failures on several of Linaro's buildbots. Several
MLIR test failures and at least one test timing out.

I doubt it's the patch itself, but instead an issue it has uncovered.
Revert while we dig into that.