Files
rust/tests/codegen-llvm
bors f57b9e6f56 Auto merge of #150564 - rwardd:rwardd/option_or_codegen_tests, r=scottmcm
Added codegen tests for different forms of `Option::or`

Adds tests to check the output of the different ways of writing `Option::or`

Fixes rust-lang/rust#124533
2026-01-03 22:47:35 +00:00
..
2025-11-08 10:57:35 -07:00
2025-12-14 20:34:56 +00:00
2025-08-15 16:42:21 +00:00

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