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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:19:03 +0000 |
commit | 64d98f8ee037282c35007b64c2649055c56af1db (patch) | |
tree | 5492bcf97fce41ee1c0b1cc2add283f3e66cdab0 /tests/incremental/cache_file_headers.rs | |
parent | Adding debian version 1.67.1+dfsg1-1. (diff) | |
download | rustc-64d98f8ee037282c35007b64c2649055c56af1db.tar.xz rustc-64d98f8ee037282c35007b64c2649055c56af1db.zip |
Merging upstream version 1.68.2+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tests/incremental/cache_file_headers.rs')
-rw-r--r-- | tests/incremental/cache_file_headers.rs | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/tests/incremental/cache_file_headers.rs b/tests/incremental/cache_file_headers.rs new file mode 100644 index 000000000..9cf611c33 --- /dev/null +++ b/tests/incremental/cache_file_headers.rs @@ -0,0 +1,20 @@ +// This test case makes sure that the compiler does not try to re-use anything +// from the incremental compilation cache if the cache was produced by a +// different compiler version. This is tested by artificially forcing the +// emission of a different compiler version in the header of rpass1 artifacts, +// and then making sure that the only object file of the test program gets +// re-codegened although the program stays unchanged. + +// The `l33t haxx0r` Rust compiler is known to produce incr. comp. artifacts +// that are outrageously incompatible with just about anything, even itself: +//[rpass1] rustc-env:RUSTC_FORCE_RUSTC_VERSION="l33t haxx0r rustc 2.1 LTS" + +// revisions:rpass1 rpass2 +// compile-flags: -Z query-dep-graph + +#![feature(rustc_attrs)] +#![rustc_partition_codegened(module="cache_file_headers", cfg="rpass2")] + +fn main() { + // empty +} |