| 1 | use std::collections::BTreeSet; |
| 2 | use std::path::PathBuf; |
| 3 | |
| 4 | use armfortas::driver::OptLevel; |
| 5 | use armfortas::testing::{capture_from_path, CaptureRequest, CapturedStage, Stage}; |
| 6 | |
| 7 | fn fixture(name: &str) -> PathBuf { |
| 8 | let path = PathBuf::from("test_programs").join(name); |
| 9 | assert!(path.exists(), "missing test fixture {}", path.display()); |
| 10 | path |
| 11 | } |
| 12 | |
| 13 | fn capture_text(request: CaptureRequest, stage: Stage) -> String { |
| 14 | let result = capture_from_path(&request).expect("capture should succeed"); |
| 15 | match result.get(stage) { |
| 16 | Some(CapturedStage::Text(text)) => text.clone(), |
| 17 | Some(CapturedStage::Run(_)) => panic!("expected text stage for {}", stage.as_str()), |
| 18 | None => panic!("missing requested stage {}", stage.as_str()), |
| 19 | } |
| 20 | } |
| 21 | |
| 22 | fn function_sections(ir: &str) -> Vec<&str> { |
| 23 | ir.match_indices(" func @") |
| 24 | .map(|(idx, _)| { |
| 25 | let rest = &ir[idx..]; |
| 26 | let end = rest |
| 27 | .find("\n }\n") |
| 28 | .unwrap_or_else(|| panic!("unterminated function section in:\n{}", rest)); |
| 29 | &rest[..end + "\n }".len()] |
| 30 | }) |
| 31 | .collect() |
| 32 | } |
| 33 | |
| 34 | fn function_name<'a>(func_section: &'a str) -> &'a str { |
| 35 | let header = func_section.lines().next().expect("function header").trim(); |
| 36 | let rest = header |
| 37 | .strip_prefix("func @") |
| 38 | .expect("function header prefix"); |
| 39 | let end = rest |
| 40 | .find(|ch: char| ch == ' ' || ch == '(') |
| 41 | .unwrap_or(rest.len()); |
| 42 | &rest[..end] |
| 43 | } |
| 44 | |
| 45 | #[test] |
| 46 | fn o0_lowers_whole_array_elemental_assignment_through_concurrent_map() { |
| 47 | let source = fixture("elemental_array_map.f90"); |
| 48 | |
| 49 | let raw_ir = capture_text( |
| 50 | CaptureRequest { |
| 51 | input: source, |
| 52 | requested: BTreeSet::from([Stage::Ir]), |
| 53 | opt_level: OptLevel::O0, |
| 54 | }, |
| 55 | Stage::Ir, |
| 56 | ); |
| 57 | let raw_sections = function_sections(&raw_ir); |
| 58 | assert_eq!( |
| 59 | raw_sections.len(), |
| 60 | 2, |
| 61 | "raw IR should include the program body plus one elemental scalar helper:\n{}", |
| 62 | raw_ir |
| 63 | ); |
| 64 | let scalar_body_name = function_name(raw_sections[1]); |
| 65 | |
| 66 | assert!( |
| 67 | raw_ir.matches("doconc_check_").count() >= 2, |
| 68 | "two elemental whole-array assignments should lower through DO CONCURRENT blocks:\n{}", |
| 69 | raw_ir |
| 70 | ); |
| 71 | assert!( |
| 72 | raw_ir.contains(&format!("call @{}(", scalar_body_name)), |
| 73 | "lowered IR should still call the elemental scalar body per element:\n{}", |
| 74 | raw_ir |
| 75 | ); |
| 76 | } |
| 77 |