Previously, only the end of pass RSS was indicated. This could easily
lead one to believe that the change in RSS from one pass to the next was
attributable to the second pass, when in fact it occurred between the
end of the first pass and the start of the second.

Also, improve alignment of columns.

…clif-2021-02-01

…jorn3

Sync rustc_codegen_cranelift

The highlight of this sync are abi compatibility with cg_llvm allowing mixing of cg_clif and cg_llvm compiled crates and switching to the x64 cranelift backend based on the new backend framework.

r? ``@ghost``

``@rustbot`` label +A-codegen +A-cranelift +T-compiler

This commit adds a new ABI to be selected via `extern
"C-cmse-nonsecure-call"` on function pointers in order for the compiler to
apply the corresponding cmse_nonsecure_call callsite attribute.
For Armv8-M targets supporting TrustZone-M, this will perform a
non-secure function call by saving, clearing and calling a non-secure
function pointer using the BLXNS instruction.

See the page on the unstable book for details.

Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>

This reverts commit bfcf97b.

It causes a "can't resolve symbol" crash on macOS

FreeBSD doesn't have /bin/bash

Test FreeBSD on CI

It causes a miscompilation of lewton

Fixes rust-lang#1142

Remove support for the old x86 Cranelift backend

Helps with rust-lang#1134

cc rust-lang#806

Unlike the old x75 backend, the new x64 backend masks the shift amount
itself, matching the specified semantics.

See rust-lang#81327 for the same change to cg_llvm

This reverts commit c5f98b5.

It turns out to be necessary anyway

This improves compilation time and shrinks the linked backend from
13MB to 9.7MB on Linux.

Use dynamic dispatch for the inner Module

…=m-ou-se

Stabilize str_split_once

Closes rust-lang#74773

Fixes rust-lang#1143

This prevents an expensive Cranelift pass from running to reconstruct the debuginfo

…clif-2021-03-05