Files
rust/tests/codegen-llvm
bors 0312a55fe4 Auto merge of #154802 - matthiaskrgr:rollup-HWNmEyC, r=matthiaskrgr
Rollup of 5 pull requests

Successful merges:

 - rust-lang/rust#154376 (Remove more BuiltinLintDiag variants - part 4)
 - rust-lang/rust#154731 (llvm: Fix array ABI test to not check equality implementation)
 - rust-lang/rust#127534 (feat(core): impl Step for NonZero<u*>)
 - rust-lang/rust#154703 (Fix trailing comma in lifetime suggestion for empty angle brackets)
 - rust-lang/rust#154776 (Fix ICE in read_discriminant for enums with non-contiguous discriminants)
2026-04-04 14:36:56 +00:00
..
2025-11-08 10:57:35 -07:00
2026-01-26 13:43:06 -06:00
2025-08-15 16:42:21 +00:00
2026-02-24 08:33:15 +00:00
2026-03-31 09:06:31 +02:00

The files here use the LLVM FileCheck framework, documented at https://llvm.org/docs/CommandGuide/FileCheck.html.

One extension worth noting is the use of revisions as custom prefixes for FileCheck. If your codegen test has different behavior based on the chosen target or different compiler flags that you want to exercise, you can use a revisions annotation, like so:

// revisions: aaa bbb
// [bbb] compile-flags: --flags-for-bbb

After specifying those variations, you can write different expected, or explicitly unexpected output by using <prefix>-SAME: and <prefix>-NOT:, like so:

// CHECK: expected code
// aaa-SAME: emitted-only-for-aaa
// aaa-NOT:                        emitted-only-for-bbb
// bbb-NOT:  emitted-only-for-aaa
// bbb-SAME:                       emitted-only-for-bbb