Reduce code bloat from managed allocations #6237
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In commit d7f5e43 "core::rt: Add the local heap to newsched tasks", local_malloc and local_free have become rather big and their forced inlining causes quite a bit of code bloat. Compile times for crates affected by the bloat (e.g. rustc) improve, while others (e.g. libstd) seem to be unaffected, so I guess the inlining doesn't gain us much. Sizes: | librustc | libsytax ---------------|–-----------|------------ with inlining | 18,547,824 | 7,110,848 w/o inlining | 15,092,040 | 5,518,608
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I think this is worth doing because the overhead of the Rust call isn't very big. There's already a non-inlined wrapper around the C call and then the non-inlineable C call itself. At the very least it should be @brson: r? |
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There's basically no difference between So librustc got even worse. |
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Nice catch. Thanks. 🍍 |
bors
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In commit d7f5e43 "core::rt: Add the local heap to newsched tasks", local_malloc and local_free have become rather big and their forced inlining causes quite a bit of code bloat. Compile times for crates affected by the bloat (e.g. rustc) improve, while others (e.g. libstd) seem to be unaffected, so I guess the inlining doesn't gain us much. Sizes: ``` | librustc | libsytax ---------------|–-----------|------------ with inlining | 18,547,824 | 7,110,848 w/o inlining | 15,092,040 | 5,518,608
flip1995
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Nov 20, 2020
Fix bad suggestions for `deref_addrof` and `try_err` lints Fix bad suggestions when in macro expansion for `deref_addrof` and `try_err` lints. Fixes: rust-lang#6234 Fixes: rust-lang#6242 Fixes: rust-lang#6237 changelog: none r? `@llogiq`
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In commit d7f5e43 "core::rt: Add the local heap to newsched tasks",
local_malloc and local_free have become rather big and their forced
inlining causes quite a bit of code bloat. Compile times for crates
affected by the bloat (e.g. rustc) improve, while others (e.g. libstd)
seem to be unaffected, so I guess the inlining doesn't gain us much.
Sizes: