mirror of https://github.com/rust-lang/rust
21 lines
859 B
Rust
21 lines
859 B
Rust
// This test case makes sure that the compiler does not try to re-use anything
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// from the incremental compilation cache if the cache was produced by a
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// different compiler version. This is tested by artificially forcing the
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// emission of a different compiler version in the header of rpass1 artifacts,
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// and then making sure that the only object file of the test program gets
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// re-codegened although the program stays unchanged.
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// The `l33t haxx0r` Rust compiler is known to produce incr. comp. artifacts
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// that are outrageously incompatible with just about anything, even itself:
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//@[rpass1] rustc-env:RUSTC_FORCE_RUSTC_VERSION="l33t haxx0r rustc 2.1 LTS"
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//@ revisions:rpass1 rpass2
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//@ compile-flags: -Z query-dep-graph
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#![feature(rustc_attrs)]
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#![rustc_partition_codegened(module="cache_file_headers", cfg="rpass2")]
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fn main() {
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// empty
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}
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