| ; RUN: llc -mtriple=amdgcn -mcpu=gfx900 -verify-machineinstrs < %s 2>&1 | FileCheck -check-prefix=WARN %s |
| |
| ; 1024 flat work group size across 2560 possible threads -> occupancy should be 8 max. |
| ; WARN: warning: <unknown>:0:0: failed to meet occupancy target given by 'amdgpu-waves-per-eu' in 'occupancy_8_target_9': desired occupancy was 9, final occupancy is 8 |
| define amdgpu_kernel void @occupancy_8_target_9() #0 { |
| ret void |
| } |
| |
| ; Impossible occupancy target |
| ; WARN: warning: <unknown>:0:0: failed to meet occupancy target given by 'amdgpu-waves-per-eu' in 'impossible_occupancy': desired occupancy was 11, final occupancy is 10 |
| define amdgpu_kernel void @impossible_occupancy() #1 { |
| ret void |
| } |
| |
| attributes #0 = { "amdgpu-flat-work-group-size"="1024,1024" "amdgpu-waves-per-eu"="9" } |
| attributes #1 = { "amdgpu-flat-work-group-size"="1,256" "amdgpu-waves-per-eu"="11" } |
