Subtree sync for rustc_codegen_cranelift #132526
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
…pal trait def id are truly NOPs
- fix for divergence - fix error message - fix another cranelift test - fix some cranelift things - don't set the NORETURN option for naked asm - fix use of naked_asm! in doc comment - fix use of naked_asm! in run-make test - use `span_bug` in unreachable branch
Add intrinsics `fmuladd{f16,f32,f64,f128}`. This computes `(a * b) +
c`, to be fused if the code generator determines that (i) the target
instruction set has support for a fused operation, and (ii) that the
fused operation is more efficient than the equivalent, separate pair
of `mul` and `add` instructions.
https://llvm.org/docs/LangRef.html#llvm-fmuladd-intrinsic
MIRI support is included for f32 and f64.
The codegen_cranelift uses the `fma` function from libc, which is a
correct implementation, but without the desired performance semantic. I
think this requires an update to cranelift to expose a suitable
instruction in its IR.
I have not tested with codegen_gcc, but it should behave the same
way (using `fma` from libc).
rustbot
added
S-waiting-on-review
|
There are merge commits (commits with multiple parents) in your changes. We have a no merge policy so these commits will need to be removed for this pull request to be merged. You can start a rebase with the following commands: The following commits are merge commits: |
rustbot
added
has-merge-commits
This comment has been minimized.
This comment has been minimized.
|
The list of allowed third-party dependencies may have been modified! You must ensure that any new dependencies have compatible licenses before merging. |
rustbot
added
A-testsuite
|
@bors r+ |
bors
added
S-waiting-on-bors
workingjubilee
added a commit
to workingjubilee/rustc
that referenced
this pull request
Nov 2, 2024
…bjorn3 Subtree sync for rustc_codegen_cranelift The highlight this time is an update to Cranelift 0.113, r? `@ghost` `@rustbot` label +A-codegen +A-cranelift +T-compiler
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Nov 3, 2024
…kingjubilee Rollup of 12 pull requests Successful merges: - rust-lang#132393 (Docs: added brief colon explanation) - rust-lang#132419 (PassWrapper: adapt for llvm/llvm-project@b01e2a8b5620466c3b) - rust-lang#132437 (coverage: Regression test for inlining into an uninstrumented crate) - rust-lang#132458 (get rid of a whole bunch of unnecessary rustc_const_unstable attributes) - rust-lang#132499 (unicode_data.rs: show command for generating file) - rust-lang#132503 (better test for const HashMap; remove const_hash leftovers) - rust-lang#132514 (Port most of `--print=target-cpus` to Rust) - rust-lang#132520 (NFC add known bug nr to test) - rust-lang#132522 (make codegen help output more consistent) - rust-lang#132523 (Added regression test for generics index out of bounds) - rust-lang#132526 (Subtree sync for rustc_codegen_cranelift) - rust-lang#132528 (Use `*_opt` typeck results fns to not ICE in fallback suggestion) - rust-lang#132540 (Do not format generic consts) Failed merges: - rust-lang#132511 (stabilize const_arguments_as_str) r? `@ghost` `@rustbot` modify labels: rollup
|
@bors p=1 |
|
☀️ Test successful - checks-actions |
|
Finished benchmarking commit (89ab655): comparison URL. Overall result: no relevant changes - no action needed@rustbot label: -perf-regression Instruction countThis benchmark run did not return any relevant results for this metric. Max RSS (memory usage)Results (primary -2.6%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
CyclesResults (primary 1.9%)This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.
Binary sizeThis benchmark run did not return any relevant results for this metric. Bootstrap: 780.354s -> 780.951s (0.08%) |
bjorn3
pushed a commit
to bjorn3/rust
that referenced
this pull request
Nov 9, 2024
…orn3 Subtree sync for rustc_codegen_cranelift The highlight this time is an update to Cranelift 0.113, r? `@ghost` `@rustbot` label +A-codegen +A-cranelift +T-compiler
# for free
to join this conversation on GitHub.
Already have an account?
# to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
The highlight this time is an update to Cranelift 0.113,
r? @ghost
@rustbot label +A-codegen +A-cranelift +T-compiler