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libarena -> librustc_arena
libfmt_macros -> librustc_parse_format
libgraphviz -> librustc_graphviz
libserialize -> librustc_serialize
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This moves tests in opaque.rs and tests other than tests that require
private items in json.rs into tests/opaque.rs and tests/json.rs.
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This reverts commit d02a5ffaed9c395ae62ee12d0f4e04946c62edb1.
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This reverts commit 37d0600c23ba1890346078bd7f310e15915417b2.
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Speed up leb128 encoding and decoding for unsigned values.
Make the implementation for some leb128 functions potentially faster.
@Mark-Simulacrum, could you please trigger a perf.rlo run?
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This saves the storage space used by about 32 bits per `Fingerprint`.
On average, this reduces the size of the `/target/{mode}/incremental`
folder by roughly 5%.
Fixes #45875
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Part of #45875
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on-disk-cache persistence code.
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Like #43008 (f668999), but _much more aggressive_.
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This commit updates the version number to 1.17.0 as we're not on that version of
the nightly compiler, and at the same time this updates src/stage0.txt to
bootstrap from freshly minted beta compiler and beta Cargo.
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This commit introduces 128-bit integers. Stage 2 builds and produces a working compiler which
understands and supports 128-bit integers throughout.
The general strategy used is to have rustc_i128 module which provides aliases for iu128, equal to
iu64 in stage9 and iu128 later. Since nowhere in rustc we rely on large numbers being supported,
this strategy is good enough to get past the first bootstrap stages to end up with a fully working
128-bit capable compiler.
In order for this strategy to work, number of locations had to be changed to use associated
max_value/min_value instead of MAX/MIN constants as well as the min_value (or was it max_value?)
had to be changed to use xor instead of shift so both 64-bit and 128-bit based consteval works
(former not necessarily producing the right results in stage1).
This commit includes manual merge conflict resolution changes from a rebase by @est31.
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These functions are all hot in rustc and inlining them speeds up most of
the rustc-benchmarks by 1--2%.
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`opaque::Decoder::read_str` is very hot within `rustc` due to its use in
the reading of crate metadata, and it currently returns a `String`. This
commit changes it to instead return a `Cow<str>`, which avoids a heap
allocation.
This change reduces the number of calls to `malloc` by almost 10% in
some benchmarks.
This is a [breaking-change] to libserialize.
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