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AIE2P (Peano) miscompiles a kernel combining a MAC-accumulate loop and a LUT-based activation at default -O2

Status: Open.

#1262 In Xilinx/llvm-aie;

· hunhoffe opened on Aug 21, 2026

sizeof(bfp16ebs8) == 1, not 9

Status: Open.

#1232 In Xilinx/llvm-aie;

· AngryLoki opened on Aug 8, 2026

AIE2P backend crash: loop-carried bf16 matmul accumulator

Status: Open.

#1185 In Xilinx/llvm-aie;

· simeonschaub opened on Jul 22, 2026

[AIE2P] Compiling a BFP16 matrix-multiplication kernel for AIE2P fails in the AIE2 assembly printer

Status: Open.

#1090 In Xilinx/llvm-aie;

· jia1217 opened on Jul 13, 2026

[AIE2P][PostPipeliner] II=18 vs chess II=11 on bf16/BFP16 matmul-accumulate loop — false loop-carried anti-deps from pipelining-unaware register allocation

Status: Open.

#1066 In Xilinx/llvm-aie;

· erwei-xilinx opened on Jun 30, 2026

[AIE] 8-byte scalar copy not coalesced at -O2/-O3 (works at -O1/-Os/-Oz); memcpy(.,.,8) never coalesces

Status: Open.

#1028 In Xilinx/llvm-aie;

· hunhoffe opened on Jun 11, 2026

[AIE] chess_storage(TM:...) is silently ignored (no warning)

Status: Open.

#1027 In Xilinx/llvm-aie;

· hunhoffe opened on Jun 11, 2026

[aie2p/aie2ps] Backend fails to legalize G_ZEXTLOAD (s128) from (s64) — blocks sparse MAC in C++

Status: Open.

#962 In Xilinx/llvm-aie;

· syntax1killer opened on Apr 22, 2026

ICE at -O0 / wrong code at -O1,-O2 with BFP16-emulated MMUL<8,8,8> and shuffle_up_fill

Status: Open.

#847 In Xilinx/llvm-aie;

· RobinMelhuish opened on Mar 13, 2026

[AIE2P] Large struct phi with zeroinitializer fails to zero ACC2048 registers; crashes at -O0

Status: Open.

#805 In Xilinx/llvm-aie;

· paintedsnipedotll opened on Mar 1, 2026

Worse code with higher min_iteration_count?

Status: Open.

#639 In Xilinx/llvm-aie;

· andrej opened on Sep 4, 2025

Lowering of llvm mul <32xi16>

Status: Open.

#488 In Xilinx/llvm-aie;

· newling opened on Jun 12, 2025