Ubuntu
dpdk package

  1. Bug #1799397
  2. Comment #5

Comment 5 for bug 1799397

Revision history for this message
Christian Ehrhardt  (paelzer) wrote :

It seems offsets are compiled wrong with our compiler

Being a potential gcc bug I'll subscribe doko and add a bug task.

--- bad-avx512-enabled
+++ good-avx512-disabled
- vmovdqu8 xmm0,XMMWORD PTR [rax*8+0x0]
+ vmovdqu xmm0,XMMWORD PTR [rax*8+0x0]
     vinserti128 ymm0,ymm0,XMMWORD PTR [rax*8+0x10],0x1
     vmovups XMMWORD PTR [rsi],xmm0
     vextracti128 XMMWORD PTR [rsi+0x10],ymm0,0x1
- vmovdqu8 xmm0,XMMWORD PTR [rax*8+0x2]
+ vmovdqu xmm0,XMMWORD PTR [rax*8+0x20]
     vinserti128 ymm0,ymm0,XMMWORD PTR [rax*8+0x30],0x1
     vmovups XMMWORD PTR [rsi+0x20],xmm0
     vextracti128 XMMWORD PTR [rsi+0x30],ymm0,0x1
- vmovdqu8 xmm0,XMMWORD PTR [rax*8+0x4]
+ vmovdqu xmm0,XMMWORD PTR [rax*8+0x40]
     vinserti128 ymm0,ymm0,XMMWORD PTR [rax*8+0x50],0x1
     vmovups XMMWORD PTR [rsi+0x40],xmm0
     vextracti128 XMMWORD PTR [rsi+0x50],ymm0,0x1
- vmovdqu8 xmm0,XMMWORD PTR [rax*8+0x6]
+ vmovdqu xmm0,XMMWORD PTR [rax*8+0x60]
     vinserti128 ymm0,ymm0,XMMWORD PTR [rax*8+0x70],0x1
     vmovups XMMWORD PTR [rsi+0x60],xmm0
     vextracti128 XMMWORD PTR [rsi+0x70],ymm0,0x1

I know I'll need to ask for or recreate on my own a repro for Doko to take a look ... time arr