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d7668d8bf4
Fix a couple Emscripten tests This fixes a couple Emscripten tests where the correct fix is more or less obvious. A couple UI tests are still broken with this PR: - `tests/ui/abi/numbers-arithmetic/return-float.rs` (#136197) - `tests/ui/no_std/no-std-unwind-binary.rs` (haven't debugged yet) - `tests/ui/test-attrs/test-passed.rs` (haven't debugged this either) `````@rustbot````` label +T-compiler +O-emscripten
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