| 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 program(name: &str) -> PathBuf { |
| 8 | let path = PathBuf::from("test_programs").join(name); |
| 9 | assert!(path.exists(), "missing program 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 | #[test] |
| 23 | fn integer16_read_uses_wide_reader_in_ir_and_asm() { |
| 24 | let source = program("integer16_read.f90"); |
| 25 | |
| 26 | let opt_ir = capture_text( |
| 27 | CaptureRequest { |
| 28 | input: source.clone(), |
| 29 | requested: BTreeSet::from([Stage::OptIr]), |
| 30 | opt_level: OptLevel::O2, |
| 31 | }, |
| 32 | Stage::OptIr, |
| 33 | ); |
| 34 | assert!( |
| 35 | opt_ir.contains("call @afs_read_int128("), |
| 36 | "optimized IR should route integer(16) read through the wide runtime reader:\n{}", |
| 37 | opt_ir |
| 38 | ); |
| 39 | |
| 40 | let asm = capture_text( |
| 41 | CaptureRequest { |
| 42 | input: source, |
| 43 | requested: BTreeSet::from([Stage::Asm]), |
| 44 | opt_level: OptLevel::O2, |
| 45 | }, |
| 46 | Stage::Asm, |
| 47 | ); |
| 48 | assert!( |
| 49 | asm.contains("_afs_read_int128"), |
| 50 | "assembly should reference the wide runtime reader symbol:\n{}", |
| 51 | asm |
| 52 | ); |
| 53 | } |
| 54 | |
| 55 | #[test] |
| 56 | fn integer16_read_runs_across_all_opt_levels() { |
| 57 | for level in [ |
| 58 | OptLevel::O0, |
| 59 | OptLevel::O1, |
| 60 | OptLevel::O2, |
| 61 | OptLevel::O3, |
| 62 | OptLevel::Os, |
| 63 | OptLevel::Ofast, |
| 64 | ] { |
| 65 | let result = capture_from_path(&CaptureRequest { |
| 66 | input: program("integer16_read.f90"), |
| 67 | requested: BTreeSet::from([Stage::Run]), |
| 68 | opt_level: level, |
| 69 | }) |
| 70 | .unwrap_or_else(|e| panic!("integer(16) read should run at {:?}:\n{}", level, e)); |
| 71 | |
| 72 | let run = result |
| 73 | .get(Stage::Run) |
| 74 | .and_then(CapturedStage::as_run) |
| 75 | .expect("missing run capture"); |
| 76 | |
| 77 | assert_eq!( |
| 78 | run.exit_code, 0, |
| 79 | "expected successful integer(16) read run at {:?}:\n{:#?}", |
| 80 | level, run |
| 81 | ); |
| 82 | assert!( |
| 83 | run.stdout |
| 84 | .contains("170141183460469231731687303715884105727"), |
| 85 | "wide positive integer(16) read should survive at {:?}:\n{}", |
| 86 | level, |
| 87 | run.stdout |
| 88 | ); |
| 89 | assert!( |
| 90 | run.stdout |
| 91 | .contains("-170141183460469231731687303715884105727"), |
| 92 | "wide negative integer(16) read should survive at {:?}:\n{}", |
| 93 | level, |
| 94 | run.stdout |
| 95 | ); |
| 96 | } |
| 97 | } |
| 98 | |
| 99 | #[test] |
| 100 | fn integer16_read_object_snapshot_is_deterministic_at_o2() { |
| 101 | let source = program("integer16_read.f90"); |
| 102 | let first = capture_text( |
| 103 | CaptureRequest { |
| 104 | input: source.clone(), |
| 105 | requested: BTreeSet::from([Stage::Obj]), |
| 106 | opt_level: OptLevel::O2, |
| 107 | }, |
| 108 | Stage::Obj, |
| 109 | ); |
| 110 | let second = capture_text( |
| 111 | CaptureRequest { |
| 112 | input: source, |
| 113 | requested: BTreeSet::from([Stage::Obj]), |
| 114 | opt_level: OptLevel::O2, |
| 115 | }, |
| 116 | Stage::Obj, |
| 117 | ); |
| 118 | |
| 119 | assert_eq!( |
| 120 | first, second, |
| 121 | "integer(16) read object snapshots should be deterministic at O2" |
| 122 | ); |
| 123 | } |
| 124 |