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Issues list

JIT: Expand address peeling in block morphing to handle array indexing expressions area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#86755 opened May 25, 2023 by jakobbotsch Future
2
Skip finding subcaptures when position is known from top level match in RegexOptions.NonBacktracking area-System.Text.RegularExpressions optimization
#68783 opened May 2, 2022 by olsaarik Future
1
JIT: Control-flow guard checked calls should preference call target to validator-preserved register arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#65077 opened Feb 9, 2022 by jakobbotsch Future
2
Possible .NET optimization opportunities for an accumulated multiply-add loop area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization Priority:2 Work that is important, but not critical for the release
#56855 opened Aug 4, 2021 by L2 Future
13
Arm64 multireg passing: keep in regs arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#53956 opened Jun 9, 2021 by sandreenko Future
@kunalspathak
improve zero-init code for x64. arch-x64 arch-x86 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization Priority:3 Work that is nice to have
#52286 opened May 5, 2021 by sandreenko Future
@kunalspathak
13
JIT should eliminate useless comparisons against int.MaxValue / nint.MaxValue / long.MaxValue area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization Priority:2 Work that is important, but not critical for the release
#52217 opened May 3, 2021 by GrabYourPitchforks Future
@EgorBo
2
[Arm64] Extend Compiler::lvaFrameAddress() and JIT to allow using SP as base register arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization Priority:2 Work that is important, but not critical for the release
#47810 opened Feb 3, 2021 by echesakov Future
1
Use disjoint-set-union for ClassLayout::AreCompatible. area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI good first issue Issue should be easy to implement, good for first-time contributors help wanted [up-for-grabs] Good issue for external contributors optimization
#42801 opened Sep 28, 2020 by sandreenko
6 tasks
Future
6
Consider optimizing more intrinsics that have move/copy semantics area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization Priority:3 Work that is nice to have
#40489 opened Aug 6, 2020 by echesakov Future
1
JIT doesn't properly optimize assignment to stackalloced span elements when used as 'out' parameters area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#38628 opened Jun 30, 2020 by GrabYourPitchforks Future
9
Static method that evaluates to a constant not being inlined by .NET Core 3 and 5 JIT area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#38003 opened Jun 16, 2020 by ziriax Future
7
Inefficient recursive pattern matching (?) native code generated area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#37986 opened Jun 11, 2020 by myblindy Future
@AndyAyersMS
13
JIT suggestion: optimize comparisons of uint against int.MaxValue area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#37462 opened Jun 4, 2020 by GrabYourPitchforks Future
Transform (x1 == x2) && (y1 == y2) into ((x1 - x2) | (y1 - y2)) == 0 for (u)ints, (u)longs area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization tenet-performance Performance related issue
#36620 opened May 17, 2020 by hypeartist Future
4
[arm/arm64] Leaf frames, saving LR, and return address hijacking arch-arm64 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI JitUntriaged CLR JIT issues needing additional triage optimization
#35274 opened Apr 22, 2020 by BruceForstall Future
10
Duplicate unnecessary null checks area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#35273 opened Apr 22, 2020 by BruceForstall Future
Range check elimination for multi-dimensional array area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#35056 opened Apr 16, 2020 by kunalspathak Future
@kunalspathak
3
JIT creates unnecessary shadow copies. area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#32627 opened Feb 20, 2020 by sandreenko Future
RyuJIT: should always decompose GT_MOD into a - (a / b) * b for CSE area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#32615 opened Feb 20, 2020 by EgorBo Future
Poor loop optimization in BilinearInterpol benchmark area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization tenet-performance Performance related issue
#31831 opened Feb 6, 2020 by CarolEidt Future
1
Code generation of HW intrinsics / loading struct into vector register area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#31692 opened Feb 3, 2020 by luithefirst Future
13
Elide bounds checks for partial array/span iteration area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#31638 opened Feb 2, 2020 by Thealexbarney Future
@BruceForstall
9
[Improvement] Optimize away boxing in some expression involving as operator, nullable value types, and type parameters area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#1134 opened Dec 23, 2019 by VladimirReshetnikov Future
4
JIT: Examples where long decomposition could be improved arch-arm32 arch-x86 area-CodeGen-coreclr CLR JIT compiler in src/coreclr/src/jit and related components such as SuperPMI optimization
#855 opened Dec 13, 2019 by AndyAyersMS Future
1
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