https://bugs.freedesktop.org/show_bug.cgi?id=72785
Priority: medium Bug ID: 72785 Assignee: dri-devel@lists.freedesktop.org Summary: bfgminer --scrypt on 7xxx+ Severity: normal Classification: Unclassified OS: All Reporter: haagch.christoph@googlemail.com Hardware: All Status: NEW Version: git Component: Drivers/Gallium/radeonsi Product: Mesa
bfgminer --benchmark without scrypt seems to be working fine now.
But I think many people would rather compute scrypt right now on their 7xxx+ GPUs, just considering the recent rumors that the radeon 7950 is getting sold out because of litecoin miners.
With mesa/llvm it doesn't work yet.
llvm 3.5 197392, mesa and stuff are very recent git builds.
The kernel is https://github.com/luke-jr/bfgminer/blob/bfgminer/scrypt130511.cl
bfgminer is started with
bfgminer -v1 --scrypt -S opencl:auto --url=<pool> --userpass=user:worker:pass
The error is:
Initialising kernel scrypt130511.cl without bitalign, 1 vectors and worksize 256
[...]
LLVM ERROR: Cannot select: 0x7f0b7cbd40a0: ch = br_cc 0x7f0b7cd32bb0, 0x7f0b7cc28c20, 0x7f0b7cd32fb0, 0x7f0b7cc2bc30, 0x7f0b7cc2ad30 [ORD=19251] [ID=4253] 0x7f0b7cd32fb0: i1,ch = llvm.SI.loop 0x7f0b7cc2c030:1, 0x7f0b7cd333b0, 0x7f0b7cc2c030 [ORD=19250] [ID=4250] 0x7f0b7cd333b0: i64 = TargetConstant<3431> [ID=132] 0x7f0b7cc2c030: i64,ch = llvm.SI.if.break 0x7f0b7cf2f3e0, 0x7f0b7cc2b530, 0x7f0b7cc2c530, 0x7f0b7cd339b0 [ORD=19249] [ID=4249] 0x7f0b7cc2b530: i64 = TargetConstant<3428> [ID=129] 0x7f0b7cc2c530: i1 = setcc 0x7f0b7cc7dd60, 0x7f0b7cc80760, 0x7f0b7cd337b0 [ORD=19248] [ID=212] 0x7f0b7cc7dd60: i64 = add 0x7f0b7cc81560, 0x7f0b7cc81360 [ORD=13153] [ID=187] 0x7f0b7cc81560: i64,ch = CopyFromReg 0x7f0b7c0535d8, 0x7f0b7cc81660 [ORD=13147] [ID=149] 0x7f0b7cc81660: i64 = Register %vreg53 [ID=1] 0x7f0b7cc81360: i64 = Constant<1> [ID=2] 0x7f0b7cc80760: i64 = Constant<4> [ID=4] 0x7f0b7cd339b0: i64,ch = CopyFromReg 0x7f0b7c0535d8, 0x7f0b7cd342b0 [ORD=19249] [ID=185] 0x7f0b7cd342b0: i64 = Register %vreg52 [ID=130] 0x7f0b7cc2bc30: i1 = Constant<-1> [ID=133] In function: search