With Rust 2018 Edition, the `mod std` trick to alias `core` names to
`std` no longer works, so switch to just having the code use `core`
explicitly.
So instead, switch to just using `core::*` for things that in core.
This is more consistent with other Rust no_std code. And it allows
us to enable `no_std` mode unconditionally in the crates that support
it, which makes testing a little easier.
There actually three cases:
- For things in std and also in core, like `cmp`: Just use them via
`core::*`.
- For things in std and also in alloc, like `Vec`: Import alloc as std, as
use them from std. This allows them to work on both stable (which
doesn't provide alloc, but we don't support no_std mode anyway) and
nightly.
- For HashMap and similar which are not in core or alloc, import them in
the top-level lib.rs files from either std or the third-party hashmap_core
crate, and then have the code use super::hashmap_core.
Also, no_std support continues to be "best effort" at this time and not
something most people need to be testing.
* initial cargo fix run
* Upgrade cranelift-entity crate
* Upgrade bforest crate
* Upgrade the codegen crate
* Upgrade the faerie crate
* Upgrade the filetests crate
* Upgrade the codegen-meta crate
* Upgrade the frontend crate
* Upgrade the cranelift-module crate
* Upgrade the cranelift-native crate
* Upgrade the cranelift-preopt crate
* Upgrade the cranelift-reader crate
* Upgrade the cranelift-serde crate
* Upgrade the cranelift-simplejit crate
* Upgrade the cranelift or cranelift-umbrella crate
* Upgrade the cranelift-wasm crate
* Upgrade cranelift-tools crate
* Use new import style on remaining files
* run format-all.sh
* run test-all.sh, update Readme and travis ci configuration
fixed an AssertionError also
* Remove deprecated functions
Because it's hot and the number of entries can reach the 1000s, so
linear insertion and search is bad.
This reduces runtime for `sqlite` and `UE4Game-HTML5-Shipping` by 3-4%,
and a couple of other benchmarks (`sqlite`, `godot`, `clang`) by smaller
amounts.
It also increases runtime for `mono` and `tanks` by about 1%; this seems
to be due to incidental changes in which functions are inlined more than
algorithmic changes.
Also, say "guard-offset pages" rather than just "guard pages" to describe the
region of a heap which is never accessible and which exists to support
optimizations for heap accesses with offsets.
And, introduce a `Uimm64` immediate type, and make all heap fields use
`Uimm64` instead of `Imm64` since they really are unsigned.
* Fix verifier printing to print instruction encodings consistently.
Use `FuncWriter::write_instruction` for all instructions so that
encodings are printed consistently.
* Make use-before-def errors mention the relevant value.
* When there are verifier errors, print a message at the end.
* Make verifier errors prettier.
Fix the length of the "^~~~~" to match the printed entity, and print the
error messsage on its own line.
* Clean up "test verifier" failure messages.
* Tidy the uses-value-from-itself error.
The use instruction is the same as the def instruction, so don't print
both. Also, the use instruction is already being printed at the
beginning, so don't print it again at the end.
Memory access instructions which took the GPR_ZERO_DEREF_SAFE register
class (that was removed in #600) should check for the need of either an
offset (r13/rbp) or the SIB byte (r12/rsp). Some load/store instructions
would already take an index, thus already contain the SIB byte in this
case (see instructions which have a comment telling that the else branch
already contains an SIB byte). Non-indexed memory accesses lacked the
SIB byte check, which this patch adds.
This is a followup to af2a952aabd82cf401cc664d0262b139ff92d86b. It
teaches the spilling pass to use the is_ghost() property to test whether
to visit instructions. This fixes a bug handling multiple return values
with fallthrough_return.
It was the caller's responsibility to call TargetIsa::check() before;
now one can't manipulate a TargetIsa without calling the
TargetIsaBuilder::finish() method, which is less error-prone and more in
line with what's coming for other things we're going to generate in the
meta crate.
Also splits the construction of a RegClass in two parts: a prototype is
made first when declaring the RegClass, and missing bits are filled in
when adding it to the TargetIsa(Builder). This avoids an awkward passing
of the isa to the RegClass ctor.
