add test infra to explicitely test rustc with autodiff/enzyme disabled #131470

ZuseZ4 · 2024-10-09T22:17:47Z

I assume this is not what you want for now, but I'll update the PR once I understand how the ignore- directives work.

To summarize the situation, we want a feature gate test where we don't enable the autodiff feature using #![feature(autodiff)]. There are two situations.

We have a rustc which was build without autodiff support (current default): It gives one error about the feature being needed and one error about this rustc version being build without autodiff support.
We have a rustc which was build with autodiff support (i.e. for now a custom build): It gives one error about the feature being needed.

We have a //@needs-enzyme directive which we can use in revisions for the second case.
However, we have no way to specify that needs-enzyme implies that the second error should not be seen.
This ads a way of passing the following test:

//@ revisions: has_support no_support
//@[has_support] needs-enzyme
//@[no_support] needs-enzyme-disabled

#![crate_type = "lib"]

#[autodiff(dfoo, Reverse)]
//[has_support]~^ ERROR use of unstable library feature 'autodiff' [E0658]
//[no_support]~^^ ERROR use of unstable library feature 'autodiff' [E0658]
//[no_support]~| ERROR this rustc version does not support autodiff
fn foo() {}

Cherry picking this PR to my frontend pr makes the test above pass in both configurations (enzyme=true/false in config.toml).
I'm open to other changes that make this testcase pass.

r? @jieyouxu

Tracking:

Tracking Issue for autodiff #124509

rustbot · 2024-10-09T22:17:56Z

Some changes occurred in src/tools/compiletest

cc @jieyouxu

jieyouxu

Thanks, this has the right idea, but we should use the ignore- directive. See my review comment.

src/tools/compiletest/src/header/needs.rs

jieyouxu

Thanks, you can r=me aftering fixing the tidy issue

tidy error: /checkout/tests/ui/feature-gates/feature-gate-autodiff.rs: too many trailing newlines (2)

jieyouxu · 2024-10-10T08:39:59Z

@bors delegate+ rollup

bors · 2024-10-10T08:40:02Z

✌️ @ZuseZ4, you can now approve this pull request!

If @jieyouxu told you to "r=me" after making some further change, please make that change, then do @bors r=@jieyouxu

jieyouxu · 2024-10-10T09:37:43Z

Oh, you might need to land the test infra first, then rebase the front-end PR on to this test infra PR.

ZuseZ4 · 2024-10-10T09:38:55Z

yep, silly me.

ZuseZ4 · 2024-10-10T10:52:59Z

@bors r=@jieyouxu

bors · 2024-10-10T10:53:01Z

📌 Commit b12dc20 has been approved by jieyouxu

It is now in the queue for this repository.

…ouxu add test infra to explicitely test rustc with autodiff/enzyme disabled I assume this is not what you want for now, but I'll update the PR once I understand how the ignore- directives work. To summarize the situation, we want a feature gate test where we don't enable the autodiff feature using `#![feature(autodiff)]`. There are two situations. 1) We have a rustc which was build without autodiff support (current default): It gives one error about the feature being needed and one error about this rustc version being build without autodiff support. 2) We have a rustc which was build with autodiff support (i.e. for now a custom build): It gives one error about the feature being needed. We have a `//`@needs-enzyme`` directive which we can use in revisions for the second case. However, we have no way to specify that needs-enzyme implies that the second error should not be seen. This ads a way of passing the following test: ``` //@ revisions: has_support no_support //`@[has_support]` needs-enzyme //`@[no_support]` needs-enzyme-disabled #![crate_type = "lib"] #[autodiff(dfoo, Reverse)] //[has_support]~^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~^^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~| ERROR this rustc version does not support autodiff fn foo() {} ``` Cherry picking this PR to my frontend pr makes the test above pass in both configurations (enzyme=true/false in config.toml). I'm open to other changes that make this testcase pass. r? `@jieyouxu` Tracking: - rust-lang#124509

…ouxu add test infra to explicitely test rustc with autodiff/enzyme disabled I assume this is not what you want for now, but I'll update the PR once I understand how the ignore- directives work. To summarize the situation, we want a feature gate test where we don't enable the autodiff feature using `#![feature(autodiff)]`. There are two situations. 1) We have a rustc which was build without autodiff support (current default): It gives one error about the feature being needed and one error about this rustc version being build without autodiff support. 2) We have a rustc which was build with autodiff support (i.e. for now a custom build): It gives one error about the feature being needed. We have a `//``@needs-enzyme``` directive which we can use in revisions for the second case. However, we have no way to specify that needs-enzyme implies that the second error should not be seen. This ads a way of passing the following test: ``` //@ revisions: has_support no_support //``@[has_support]`` needs-enzyme //``@[no_support]`` needs-enzyme-disabled #![crate_type = "lib"] #[autodiff(dfoo, Reverse)] //[has_support]~^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~^^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~| ERROR this rustc version does not support autodiff fn foo() {} ``` Cherry picking this PR to my frontend pr makes the test above pass in both configurations (enzyme=true/false in config.toml). I'm open to other changes that make this testcase pass. r? ``@jieyouxu`` Tracking: - rust-lang#124509

…ouxu add test infra to explicitely test rustc with autodiff/enzyme disabled I assume this is not what you want for now, but I'll update the PR once I understand how the ignore- directives work. To summarize the situation, we want a feature gate test where we don't enable the autodiff feature using `#![feature(autodiff)]`. There are two situations. 1) We have a rustc which was build without autodiff support (current default): It gives one error about the feature being needed and one error about this rustc version being build without autodiff support. 2) We have a rustc which was build with autodiff support (i.e. for now a custom build): It gives one error about the feature being needed. We have a `//```@needs-enzyme```` directive which we can use in revisions for the second case. However, we have no way to specify that needs-enzyme implies that the second error should not be seen. This ads a way of passing the following test: ``` //@ revisions: has_support no_support //```@[has_support]``` needs-enzyme //```@[no_support]``` needs-enzyme-disabled #![crate_type = "lib"] #[autodiff(dfoo, Reverse)] //[has_support]~^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~^^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~| ERROR this rustc version does not support autodiff fn foo() {} ``` Cherry picking this PR to my frontend pr makes the test above pass in both configurations (enzyme=true/false in config.toml). I'm open to other changes that make this testcase pass. r? ```@jieyouxu``` Tracking: - rust-lang#124509

…ouxu add test infra to explicitely test rustc with autodiff/enzyme disabled I assume this is not what you want for now, but I'll update the PR once I understand how the ignore- directives work. To summarize the situation, we want a feature gate test where we don't enable the autodiff feature using `#![feature(autodiff)]`. There are two situations. 1) We have a rustc which was build without autodiff support (current default): It gives one error about the feature being needed and one error about this rustc version being build without autodiff support. 2) We have a rustc which was build with autodiff support (i.e. for now a custom build): It gives one error about the feature being needed. We have a `//````@needs-enzyme````` directive which we can use in revisions for the second case. However, we have no way to specify that needs-enzyme implies that the second error should not be seen. This ads a way of passing the following test: ``` //@ revisions: has_support no_support //````@[has_support]```` needs-enzyme //````@[no_support]```` needs-enzyme-disabled #![crate_type = "lib"] #[autodiff(dfoo, Reverse)] //[has_support]~^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~^^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~| ERROR this rustc version does not support autodiff fn foo() {} ``` Cherry picking this PR to my frontend pr makes the test above pass in both configurations (enzyme=true/false in config.toml). I'm open to other changes that make this testcase pass. r? ````@jieyouxu```` Tracking: - rust-lang#124509

…iaskrgr Rollup of 9 pull requests Successful merges: - rust-lang#130308 (codegen_ssa: consolidate tied target checks) - rust-lang#130538 (Stabilize const `{slice,array}::from_mut`) - rust-lang#130741 (rustc_target: Add sme-b16b16 as an explicit aarch64 target feature) - rust-lang#131033 (Precise capturing in traits) - rust-lang#131442 (Match std `RUSTFLAGS` for host and target for `mir-opt` test suite to fix double std build/rebuilds) - rust-lang#131470 (add test infra to explicitely test rustc with autodiff/enzyme disabled) - rust-lang#131475 (Compiler & its UI tests: Rename remaining occurrences of "object safe" to "dyn compatible" ) - rust-lang#131493 (Avoid redundant sysroot additions to `PATH` when linking) - rust-lang#131509 (Update .mailmap) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of rust-lang#131470 - EnzymeAD:enzyme-testinfra2, r=jieyouxu add test infra to explicitely test rustc with autodiff/enzyme disabled I assume this is not what you want for now, but I'll update the PR once I understand how the ignore- directives work. To summarize the situation, we want a feature gate test where we don't enable the autodiff feature using `#![feature(autodiff)]`. There are two situations. 1) We have a rustc which was build without autodiff support (current default): It gives one error about the feature being needed and one error about this rustc version being build without autodiff support. 2) We have a rustc which was build with autodiff support (i.e. for now a custom build): It gives one error about the feature being needed. We have a `//`````@needs-enzyme`````` directive which we can use in revisions for the second case. However, we have no way to specify that needs-enzyme implies that the second error should not be seen. This ads a way of passing the following test: ``` //@ revisions: has_support no_support //`````@[has_support]````` needs-enzyme //`````@[no_support]````` needs-enzyme-disabled #![crate_type = "lib"] #[autodiff(dfoo, Reverse)] //[has_support]~^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~^^ ERROR use of unstable library feature 'autodiff' [E0658] //[no_support]~| ERROR this rustc version does not support autodiff fn foo() {} ``` Cherry picking this PR to my frontend pr makes the test above pass in both configurations (enzyme=true/false in config.toml). I'm open to other changes that make this testcase pass. r? `````@jieyouxu````` Tracking: - rust-lang#124509

rustbot assigned jieyouxu Oct 9, 2024

rustbot added A-testsuite Area: The testsuite used to check the correctness of rustc S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) labels Oct 9, 2024

jieyouxu requested changes Oct 10, 2024

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ZuseZ4 force-pushed the enzyme-testinfra2 branch from 748e940 to 170479b Compare October 10, 2024 08:28

ZuseZ4 requested a review from jieyouxu October 10, 2024 08:28

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add config to explicitely test rustc with autodiff/enzyme disabled

b12dc20

ZuseZ4 force-pushed the enzyme-testinfra2 branch from 319e517 to b12dc20 Compare October 10, 2024 09:38

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jieyouxu mentioned this pull request Oct 10, 2024

Tracking Issue for autodiff #124509

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bors merged commit 75ccd9f into rust-lang:master Oct 10, 2024
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