llvm error of version 2.8.2 with HD5970 
ABOUT XMRig-AMD/2.8.2 gcc/5.4.1
LIBS libuv/1.22.1-dev OpenCL/2.0 OpenSSL/1.0.1
CPU Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz x64 -AES
ALGO cryptonight, donate=5%
POOL #1 localhost:7003 variant 2
COMMANDS hashrate, pause, resume
[2018-10-19 02:50:02] compiling code and initializing GPUs. This will take a while...
[2018-10-19 02:50:02] found AMD platform index: 0, name: Advanced Micro Devices, Inc.
[2018-10-19 02:50:02] found OpenCL GPU: Cypress, cu: 20
[2018-10-19 02:50:02] found OpenCL GPU: Cypress, cu: 20
[2018-10-19 02:50:02] #0, GPU #0 ATI Radeon HD 5900 Series, intensity: 320 (8/256), unroll: 8, cu: 20
[2018-10-19 02:50:02] GPU #0 compiling...
LLVM ERROR: Cannot select: 0x2c0d8f0: i32 = setcc 0x23c7130, 0x2719f80, 0x2c0d4e0 [ID=248]
0x23c7130: i64 = AMDILISD::ADD 0x2719f80, 0x22f7d00 [ID=246]
0x2719f80: i64 = AMDILISD::ADD 0x22c1fe0, 0x202d270 [ORD=3763] [ID=243]
0x22c1fe0: i64 = mul 0x234c2d0, 0x288ffb0 [ORD=3762] [ID=240]
0x234c2d0: i64 = zero_extend 0x2be1220 [ORD=3759] [ID=234]
0x2be1220: i32 = AMDILISD::ADD 0x2719d80, 0x1b5da30 [ORD=3754] [ID=228]
0x2719d80: i32 = AMDILISD::VEXTRACT 0x2beb820, 0x23c4e10 [ORD=3753] [ID=225]
0x2beb820: v2i32 = AMDILISD::BITCONV 0x2009cd0 [ORD=3752] [ID=221]
0x2009cd0: i64 = AMDILISD::ADD 0x1eb2c90, 0x1b80be0 [ORD=3751] [ID=217]
0x1eb2c90: i64 = AMDILISD::ADD 0x2bec630, 0x21ed840 [ORD=3750] [ID=211]