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| author | Björn Steinbrink <bsteinbr@gmail.com> | 2014-10-24 11:08:42 +0200 |
|---|---|---|
| committer | Daniel Micay <danielmicay@gmail.com> | 2014-10-25 12:33:27 -0400 |
| commit | 6c18e508f10aa5bf42dc80691654b9cde2a661cd (patch) | |
| tree | 12153d93343fbcbdc537b2e063af557dc08727bc /src/liballoc/heap.rs | |
| parent | a10917a6a9b087d10ac4fd0186b719218627281e (diff) | |
| download | rust-6c18e508f10aa5bf42dc80691654b9cde2a661cd.tar.gz rust-6c18e508f10aa5bf42dc80691654b9cde2a661cd.zip | |
Make MIN_ALIGN a const to allow better optimization
With MIN_ALIGN as a static, other crates don't have access to its value at compile time, because it is an extern global. That means that the checks against it can't be optimized out, which is rather unfortunate. So let's make it a constant instead.
Diffstat (limited to 'src/liballoc/heap.rs')
| -rw-r--r-- | src/liballoc/heap.rs | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/liballoc/heap.rs b/src/liballoc/heap.rs index 5a0f860ff84..0e5aca18ec7 100644 --- a/src/liballoc/heap.rs +++ b/src/liballoc/heap.rs @@ -112,10 +112,10 @@ unsafe fn exchange_free(ptr: *mut u8, size: uint, align: uint) { #[cfg(any(target_arch = "arm", target_arch = "mips", target_arch = "mipsel"))] -static MIN_ALIGN: uint = 8; +const MIN_ALIGN: uint = 8; #[cfg(any(target_arch = "x86", target_arch = "x86_64"))] -static MIN_ALIGN: uint = 16; +const MIN_ALIGN: uint = 16; #[cfg(jemalloc)] mod imp { |