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stdlib: Always inline the _UnsafePartiallyInitializedContiguousArrayBuffer builder functions

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For performance reasons.

This should now truly have recovered PrimeNum's performance at -O.

rdar://22126579

Swift SVN r30988
This commit is contained in:
Arnold Schwaighofer
2015-08-04 07:49:40 +00:00
parent b6fbccc1c1
commit 8c112d1fea
1 changed files with 5 additions and 0 deletions
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5
stdlib/public/core/ContiguousArrayBuffer.swift
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@@ -605,6 +605,7 @@ internal struct _UnsafePartiallyInitializedContiguousArrayBuffer<Element> {
/// Initialize the buffer with an initial size of `initialCapacity`
/// elements.
@inline(__always) // For performance reasons.
init(initialCapacity: Int) {
if initialCapacity == 0 {
result = _ContiguousArrayBuffer()
@@ -618,6 +619,7 @@ internal struct _UnsafePartiallyInitializedContiguousArrayBuffer<Element> {
}
/// Add an element to the buffer, reallocating if necessary.
@inline(__always) // For performance reasons.
mutating func add(element: Element) {
if remainingCapacity == 0 {
// Reallocate.
@@ -636,6 +638,7 @@ internal struct _UnsafePartiallyInitializedContiguousArrayBuffer<Element> {
}
/// Add an element to the buffer, which must have remaining capacity.
@inline(__always) // For performance reasons.
mutating func addWithExistingCapacity(element: Element) {
_sanityCheck(remainingCapacity > 0,
"_UnsafePartiallyInitializedContiguousArrayBuffer has no more capacity")
@@ -649,6 +652,7 @@ internal struct _UnsafePartiallyInitializedContiguousArrayBuffer<Element> {
///
/// Returns the fully-initialized buffer. `self` is reset to contain an
/// empty buffer and cannot be used afterward.
@inline(__always) // For performance reasons.
mutating func finish() -> _ContiguousArrayBuffer<Element> {
// Adjust the initialized count of the buffer.
result.count = result.capacity - remainingCapacity
@@ -662,6 +666,7 @@ internal struct _UnsafePartiallyInitializedContiguousArrayBuffer<Element> {
///
/// Returns the fully-initialized buffer. `self` is reset to contain an
/// empty buffer and cannot be used afterward.
@inline(__always) // For performance reasons.
mutating func finishWithOriginalCount() -> _ContiguousArrayBuffer<Element> {
_sanityCheck(remainingCapacity == result.capacity - result.count,
"_UnsafePartiallyInitializedContiguousArrayBuffer has incorrect count")