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| author | Eric Huss <eric@huss.org> | 2019-10-26 09:05:57 -0700 |
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| committer | Eric Huss <eric@huss.org> | 2019-10-26 09:06:34 -0700 |
| commit | bd70c032273b873a0318636aea8f7a5b22b60e31 (patch) | |
| tree | 6470a4ef72125e75e24e4c5d999c6dcbce49b6d8 | |
| parent | f3e8c2e4a97ba54c36593c98120c4f0cc8f44cd9 (diff) | |
| download | rust-bd70c032273b873a0318636aea8f7a5b22b60e31.tar.gz rust-bd70c032273b873a0318636aea8f7a5b22b60e31.zip | |
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Co-Authored-By: Daniel Silverstone <dsilvers@digital-scurf.org>
| -rw-r--r-- | src/doc/rustc/src/codegen-options/index.md | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/doc/rustc/src/codegen-options/index.md b/src/doc/rustc/src/codegen-options/index.md index b9252b461bb..a35a14c8abc 100644 --- a/src/doc/rustc/src/codegen-options/index.md +++ b/src/doc/rustc/src/codegen-options/index.md @@ -61,7 +61,7 @@ metrics. This flag instructs LLVM to use [link time optimizations](https://llvm.org/docs/LinkTimeOptimization.html) to produce -better optimized code using whole-program analysis at the cost of longer +better optimized code, using whole-program analysis, at the cost of longer linking time. This flag may take one of the following values: @@ -74,7 +74,7 @@ This flag may take one of the following values: This is similar to "fat", but takes substantially less time to run while still achieving performance gains similar to "fat". -If `-C lto` is not specified, then it will attempt to perform "thin local LTO" +If `-C lto` is not specified, then the compiler will attempt to perform "thin local LTO" which performs "thin" LTO on the local crate only across its [codegen units](#codegen-units). In this case, LTO is disabled if codegen units is 1 or optimizations are disabled ([`-C opt-level=0`](#opt-level)). @@ -244,7 +244,7 @@ Increasing parallelism may speed up compile times, but may also produce slower code. Setting this to 1 may improve the performance of generated code, but may be slower to compile. -The default if not specified is 16. +The default, if not specified, is 16. ## remark @@ -272,7 +272,7 @@ Note: The [`-g` flag][option-g-debug] is an alias for `-C debuginfo=2`. This flag lets you control the optimization level. -* `0`: no optimizations, also turn on [`cfg(debug_assertions)`](#debug-assertions). +* `0`: no optimizations, also turns on [`cfg(debug_assertions)`](#debug-assertions). * `1`: basic optimizations * `2`: some optimizations * `3`: all optimizations @@ -292,7 +292,7 @@ or off. It takes one of the following values: * `y`, `yes`, `on`, or no value: Enable debug-assertions. * `n`, `no`, or `off`: Disable debug-assertions. -If not specified, debug assertions are enabled only if the +If not specified, debug assertions are automatically enabled only if the [opt-level](#opt-level) is 0. ## inline-threshold |