Thanks to visit codestin.com
Credit goes to github.com

Skip to content
This repository was archived by the owner on Jan 23, 2023. It is now read-only.

Intrinsicify SpanHelpers.IndexOf{Any}(byte, ...) #22118

Merged
merged 12 commits into from
Jan 24, 2019
Merged

Intrinsicify SpanHelpers.IndexOf{Any}(byte, ...) #22118

Changes from 1 commit
Commits
Show all changes
12 commits
Select commit Hold shift + click to select a range
04819de
Speedup SpanHelpers.IndexOf(byte)
benaadams Jan 21, 2019
0e8c1af
128 * 2 alignment
benaadams Jan 21, 2019
497cb8c
Move TrailingZeroCountFallback to common SpanHelpers
benaadams Jan 22, 2019
7866e81
Speedup SpanHelpers.IndexOfAny(byte, ...)
benaadams Jan 22, 2019
aebbd19
Indent for support flags
benaadams Jan 22, 2019
c38fc75
Feedback
benaadams Jan 22, 2019
d75512e
More helpers, constency in local names/formatting, feedback
benaadams Jan 23, 2019
9b7f3d8
Use LoadByte helper
benaadams Jan 23, 2019
34291f0
Missed some
benaadams Jan 23, 2019
78e1f89
Drop LoadByte
benaadams Jan 23, 2019
acdd8e9
Skip bounds check in software fallback
benaadams Jan 23, 2019
9ba65b5
Add comment
benaadams Jan 23, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
Prev Previous commit
Add comment
  • Loading branch information
@benaadams
benaadams committed Jan 23, 2019
commit 9ba65b563918c778c256f18e234be69174173f12
7 changes: 5 additions & 2 deletions src/System.Private.CoreLib/shared/System/SpanHelpers.Byte.cs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -200,6 +200,7 @@ public static unsafe int IndexOf(ref byte searchSpace, byte value, int length)

if (Avx2.IsSupported || Sse2.IsSupported)
{
// Avx2 branch also operates on Sse2 sizes, so check is combined.
if (length >= Vector128<byte>.Count * 2)
{
nLength = UnalignedByteCountVector128(ref searchSpace);
Expand Down Expand Up @@ -537,6 +538,7 @@ public static unsafe int IndexOfAny(ref byte searchSpace, byte value0, byte valu

if (Avx2.IsSupported || Sse2.IsSupported)
{
// Avx2 branch also operates on Sse2 sizes, so check is combined.
if (length >= Vector128<byte>.Count * 2)
{
nLength = UnalignedByteCountVector128(ref searchSpace);
Expand Down Expand Up @@ -760,6 +762,7 @@ public static unsafe int IndexOfAny(ref byte searchSpace, byte value0, byte valu

if (Avx2.IsSupported || Sse2.IsSupported)
{
// Avx2 branch also operates on Sse2 sizes, so check is combined.
if (length >= Vector128<byte>.Count * 2)
{
nLength = UnalignedByteCountVector128(ref searchSpace);
Expand Down Expand Up @@ -1276,7 +1279,7 @@ public static unsafe bool SequenceEqual(ref byte first, ref byte second, nuint l

while ((byte*)nLength > (byte*)offset)
{
if (Unsafe.AddByteOffset(ref first, offset) != Unsafe.AddByteOffset(ref second, offset))
if (Unsafe.AddByteOffset(ref first, offset) != Unsafe.AddByteOffset(ref second, offset))
goto NotEqual;
offset += 1;
}
Expand Down Expand Up @@ -1351,7 +1354,7 @@ public static unsafe int SequenceCompareTo(ref byte first, int firstLength, ref
NotEqual: // Workaround for https://github.com/dotnet/coreclr/issues/13549
while ((byte*)minLength > (byte*)offset)
{
int result = Unsafe.AddByteOffset(ref first, offset).CompareTo(Unsafe.AddByteOffset(ref second, offset));
int result = Unsafe.AddByteOffset(ref first, offset).CompareTo(Unsafe.AddByteOffset(ref second, offset));
if (result != 0)
return result;
offset += 1;
Expand Down