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Co-Authored-By: Daniel Silverstone <dsilvers@digital-scurf.org>
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Eric Huss 2019-10-26 09:05:57 -07:00
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10
src/doc/rustc/src/codegen-options/index.md
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@ -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