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Diffstat (limited to 'src/cuda-sim/cuda-sim.cc')
| -rw-r--r-- | src/cuda-sim/cuda-sim.cc | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/cuda-sim/cuda-sim.cc b/src/cuda-sim/cuda-sim.cc index fb72f25..2a88e5a 100644 --- a/src/cuda-sim/cuda-sim.cc +++ b/src/cuda-sim/cuda-sim.cc @@ -1157,6 +1157,15 @@ void ptx_instruction::pre_decode() { break; } + // Pre-tag atomics on the static template so co-issue eligibility checks + // (mem_coissue_disallowed in shader.cc) can detect them at candidate-scan + // time. Without this, m_isatomic only gets set during per-instance + // functional execution (add_callback path), which is too late — the + // intra co-issue scan reads the SHARED template's flag and would + // mistakenly admit an atomic into a composite, leaving the warp's + // n_atomic counter unbalanced and the warp stuck in waiting(). + if (m_opcode == ATOM_OP) m_isatomic = true; + set_opcode_and_latency(); set_bar_type(); // Get register operands |