Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases #144567

CaiWeiran · 2025-07-28T07:26:55Z

This PR resolves several test failures encountered when running ./x test on the RISC-V architecture. These failures were caused by platform-specific behavior, ABI differences, or codegen inconsistencies unique to RISC-V.

The following test cases have been fixed to ensure compatibility with RISC-V:

codegen-llvm/enum/enum-match.rs
codegen-llvm/enum/enum-transparent-extract.rs
codegen-llvm/repeat-operand-zero-len.rs
codegen-llvm/enum/enum-aggregate.rs
codegen-llvm/uninhabited-transparent-return-abi.rs

In addition, this PR adjusts tests/codegen-llvm/transmute-scalar.rs to explicitly specify the target architecture:

//@ compile-flags: --target=x86_64-unknown-linux-gnu
//@ needs-llvm-components: x86

As suggested by @nikic, this test is not target-specific and already uses minicore, implying it is meant to run against a stable triple regardless of the host architecture. Explicitly setting the target ensures consistent codegen behavior, particularly when testing on non-x86 platforms such as riscv64.

All changes have been tested locally on a RISC-V target and now pass as expected.

Notes:

These fixes are scoped specifically to enable full test suite compliance for RISC-V.
No changes impact other architectures.
The change to transmute-scalar.rs aligns with the intent of [#143915](Fix RISC-V Test Failures in ./x test for Multiple Codegen and Assembly Cases #143915) and prevents architecture-dependent discrepancies during CI or local testing.

rustbot · 2025-07-28T07:27:00Z

r? @Mark-Simulacrum

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tests/codegen-llvm/transmute-scalar.rs

Mark-Simulacrum · 2025-08-03T23:28:03Z

r=me with commits squashed

CaiWeiran · 2025-08-04T04:46:33Z

r=me with commits squashedr=me，提交被压缩

@Mark-Simulacrum Thanks! Commits squashed as requested.

bors · 2025-08-15T13:38:09Z

☔ The latest upstream changes (presumably #145423) made this pull request unmergeable. Please resolve the merge conflicts.

rustbot · 2025-08-18T01:34:53Z

This PR was rebased onto a different master commit. Here's a range-diff highlighting what actually changed.

Rebasing is a normal part of keeping PRs up to date, so no action is needed—this note is just to help reviewers.

CaiWeiran · 2025-08-18T12:24:14Z

@rustbot ready
r? @Mark-Simulacrum

Squashed to a single commit as requested. CI is green locally; please r+ when convenient. Thanks!

rustbot · 2025-08-18T12:24:16Z

Requested reviewer is already assigned to this pull request.

Please choose another assignee.

nikic · 2025-08-18T15:18:15Z

@bors r+ rollup=iffy codegen tests

bors · 2025-08-18T15:18:19Z

📌 Commit 9d08596 has been approved by nikic

It is now in the queue for this repository.

Resolve several ./x test failures on RISC-V caused by ABI and codegen differences. Update multiple codegen-llvm tests for compatibility, and explicitly set the target for transmute-scalar.rs to x86_64 to ensure consistent behavior across hosts.

…=nikic Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases This PR resolves several test failures encountered when running `./x test` on the RISC-V architecture. These failures were caused by platform-specific behavior, ABI differences, or codegen inconsistencies unique to RISC-V. The following test cases have been fixed to ensure compatibility with RISC-V: * `codegen-llvm/enum/enum-match.rs` * `codegen-llvm/enum/enum-transparent-extract.rs` * `codegen-llvm/repeat-operand-zero-len.rs` * `codegen-llvm/enum/enum-aggregate.rs` * `codegen-llvm/uninhabited-transparent-return-abi.rs` In addition, this PR adjusts `tests/codegen-llvm/transmute-scalar.rs` to explicitly specify the target architecture: ```rust //@ compile-flags: --target=x86_64-unknown-linux-gnu //@ needs-llvm-components: x86 ``` As suggested by `@nikic,` this test is not target-specific and already uses `minicore`, implying it is meant to run against a stable triple regardless of the host architecture. Explicitly setting the target ensures consistent codegen behavior, particularly when testing on non-x86 platforms such as riscv64. All changes have been tested locally on a RISC-V target and now pass as expected. ### Notes: * These fixes are scoped specifically to enable full test suite compliance for RISC-V. * No changes impact other architectures. * The change to `transmute-scalar.rs` aligns with the intent of [[rust-lang#143915](https://github.com/rust-lang/rust/pull/143915)](https://github.com/rust-lang/rust/pull/143915) and prevents architecture-dependent discrepancies during CI or local testing.

…=nikic Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases This PR resolves several test failures encountered when running `./x test` on the RISC-V architecture. These failures were caused by platform-specific behavior, ABI differences, or codegen inconsistencies unique to RISC-V. The following test cases have been fixed to ensure compatibility with RISC-V: * `codegen-llvm/enum/enum-match.rs` * `codegen-llvm/enum/enum-transparent-extract.rs` * `codegen-llvm/repeat-operand-zero-len.rs` * `codegen-llvm/enum/enum-aggregate.rs` * `codegen-llvm/uninhabited-transparent-return-abi.rs` In addition, this PR adjusts `tests/codegen-llvm/transmute-scalar.rs` to explicitly specify the target architecture: ```rust //@ compile-flags: --target=x86_64-unknown-linux-gnu //@ needs-llvm-components: x86 ``` As suggested by ``@nikic,`` this test is not target-specific and already uses `minicore`, implying it is meant to run against a stable triple regardless of the host architecture. Explicitly setting the target ensures consistent codegen behavior, particularly when testing on non-x86 platforms such as riscv64. All changes have been tested locally on a RISC-V target and now pass as expected. ### Notes: * These fixes are scoped specifically to enable full test suite compliance for RISC-V. * No changes impact other architectures. * The change to `transmute-scalar.rs` aligns with the intent of [[rust-lang#143915](https://github.com/rust-lang/rust/pull/143915)](https://github.com/rust-lang/rust/pull/143915) and prevents architecture-dependent discrepancies during CI or local testing.

Rollup of 19 pull requests Successful merges: - #140956 (`impl PartialEq<{str,String}> for {Path,PathBuf}`) - #141744 (Stabilize `ip_from`) - #142681 (Remove the `#[no_sanitize]` attribute in favor of `#[sanitize(xyz = "on|off")]`) - #142871 (Trivial improve doc for transpose ) - #144252 (Do not copy .rmeta files into the sysroot of the build compiler during check of rustc/std) - #144476 (rustdoc-search: search backend with partitioned suffix tree) - #144567 (Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases) - #144804 (Don't warn on never to any `as` casts as unreachable) - #144960 ([RTE-513] Ignore sleep_until test on SGX) - #145013 (overhaul `&mut` suggestions in borrowck errors) - #145041 (rework GAT borrowck limitation error) - #145243 (take attr style into account in diagnostics) - #145405 (cleanup: use run_in_tmpdir in run-make/rustdoc-scrape-examples-paths) - #145432 (cg_llvm: Small cleanups to `owned_target_machine`) - #145484 (Remove `LlvmArchiveBuilder` and supporting code/bindings) - #145557 (Fix uplifting in `Assemble` step) - #145563 (Remove the `From` derive macro from prelude) - #145565 (Improve context of bootstrap errors in CI) - #145584 (interpret: avoid forcing all integer newtypes into memory during clear_provenance) Failed merges: - #145359 (Fix bug where `rustdoc-js` tester would not pick the right `search.js` file if there is more than one) - #145573 (Add an experimental unsafe(force_target_feature) attribute.) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of #144567 - CaiWeiran:transmute-scalar_test, r=nikic Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases This PR resolves several test failures encountered when running `./x test` on the RISC-V architecture. These failures were caused by platform-specific behavior, ABI differences, or codegen inconsistencies unique to RISC-V. The following test cases have been fixed to ensure compatibility with RISC-V: * `codegen-llvm/enum/enum-match.rs` * `codegen-llvm/enum/enum-transparent-extract.rs` * `codegen-llvm/repeat-operand-zero-len.rs` * `codegen-llvm/enum/enum-aggregate.rs` * `codegen-llvm/uninhabited-transparent-return-abi.rs` In addition, this PR adjusts `tests/codegen-llvm/transmute-scalar.rs` to explicitly specify the target architecture: ```rust //@ compile-flags: --target=x86_64-unknown-linux-gnu //@ needs-llvm-components: x86 ``` As suggested by ```@nikic,``` this test is not target-specific and already uses `minicore`, implying it is meant to run against a stable triple regardless of the host architecture. Explicitly setting the target ensures consistent codegen behavior, particularly when testing on non-x86 platforms such as riscv64. All changes have been tested locally on a RISC-V target and now pass as expected. ### Notes: * These fixes are scoped specifically to enable full test suite compliance for RISC-V. * No changes impact other architectures. * The change to `transmute-scalar.rs` aligns with the intent of [[#143915](https://github.com/rust-lang/rust/pull/143915)](https://github.com/rust-lang/rust/pull/143915) and prevents architecture-dependent discrepancies during CI or local testing.

Zalathar · 2025-08-19T08:27:33Z

Bors hasn't noticed that this was merged.

@bors r- retry

Rollup of 19 pull requests Successful merges: - rust-lang/rust#140956 (`impl PartialEq<{str,String}> for {Path,PathBuf}`) - rust-lang/rust#141744 (Stabilize `ip_from`) - rust-lang/rust#142681 (Remove the `#[no_sanitize]` attribute in favor of `#[sanitize(xyz = "on|off")]`) - rust-lang/rust#142871 (Trivial improve doc for transpose ) - rust-lang/rust#144252 (Do not copy .rmeta files into the sysroot of the build compiler during check of rustc/std) - rust-lang/rust#144476 (rustdoc-search: search backend with partitioned suffix tree) - rust-lang/rust#144567 (Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases) - rust-lang/rust#144804 (Don't warn on never to any `as` casts as unreachable) - rust-lang/rust#144960 ([RTE-513] Ignore sleep_until test on SGX) - rust-lang/rust#145013 (overhaul `&mut` suggestions in borrowck errors) - rust-lang/rust#145041 (rework GAT borrowck limitation error) - rust-lang/rust#145243 (take attr style into account in diagnostics) - rust-lang/rust#145405 (cleanup: use run_in_tmpdir in run-make/rustdoc-scrape-examples-paths) - rust-lang/rust#145432 (cg_llvm: Small cleanups to `owned_target_machine`) - rust-lang/rust#145484 (Remove `LlvmArchiveBuilder` and supporting code/bindings) - rust-lang/rust#145557 (Fix uplifting in `Assemble` step) - rust-lang/rust#145563 (Remove the `From` derive macro from prelude) - rust-lang/rust#145565 (Improve context of bootstrap errors in CI) - rust-lang/rust#145584 (interpret: avoid forcing all integer newtypes into memory during clear_provenance) Failed merges: - rust-lang/rust#145359 (Fix bug where `rustdoc-js` tester would not pick the right `search.js` file if there is more than one) - rust-lang/rust#145573 (Add an experimental unsafe(force_target_feature) attribute.) r? `@ghost` `@rustbot` modify labels: rollup

rustbot assigned Mark-Simulacrum Jul 28, 2025

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-compiler Relevant to the compiler team, which will review and decide on the PR/issue. labels Jul 28, 2025

nikic reviewed Jul 28, 2025

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CaiWeiran requested a review from nikic August 4, 2025 00:58

CaiWeiran changed the title ~~Fix tests/codegen-llvm/transmute-scalar.rs test failure on riscv64~~ Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases Aug 4, 2025

CaiWeiran mentioned this pull request Aug 4, 2025

Fix RISC-V Test Failures in ./x test for Multiple Codegen and Assembly Cases #143915

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rustbot added has-merge-commits PR has merge commits, merge with caution. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 18, 2025

CaiWeiran force-pushed the transmute-scalar_test branch from 66fbc07 to 8620e1f Compare August 18, 2025 01:43

rustbot removed has-merge-commits PR has merge commits, merge with caution. S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 18, 2025

CaiWeiran force-pushed the transmute-scalar_test branch from 8620e1f to 9d08596 Compare August 18, 2025 12:23

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 18, 2025

Zalathar mentioned this pull request Aug 19, 2025

Rollup of 19 pull requests #145589

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bors merged commit 3a03bb9 into rust-lang:master Aug 19, 2025
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Fix RISC-V Test Failures in ./x test for Multiple Codegen Cases #144567

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