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CONFIGS="-DVX_CFG_NUM_THREADS=16 -DVX_CFG_NUM_WARPS=16 -DVX_CFG_NUM_FPU_LANES=1" ./ci/blackbox.sh --driver=rtlsim --app=dogfood --args="-n1 -ttrig"
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You can reproduce the bug wit this: CONFIGS="-DVX_CFG_NUM_THREADS=16 -DVX_CFG_NUM_WARPS=16 -DVX_CFG_NUM_FPU_LANES=1" ./ci/blackbox.sh --driver=rtlsim --app=dogfood --args="-n1 -ttrig"
If NUM_THREADS >= 16 and NUM_FPU_LANES=1, out_reg gets set on nz iterator and VX_lane_dispatch checks ready && eop and clobbers the old instruction, even though it was never valid