From 2e2f1c89a6b296c9cb28c8e8b0fabb670b4ba3f7 Mon Sep 17 00:00:00 2001
From: Davit Grigoryan <ggc.language@gmail.com>
Date: Mon, 27 Apr 2026 06:39:20 +0000
Subject: fix co-issue scheduling pc assertions

---
 src/cuda-sim/cuda-sim.cc | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

(limited to 'src/cuda-sim/cuda-sim.cc')

diff --git a/src/cuda-sim/cuda-sim.cc b/src/cuda-sim/cuda-sim.cc
index 14ae504..fb72f25 100644
--- a/src/cuda-sim/cuda-sim.cc
+++ b/src/cuda-sim/cuda-sim.cc
@@ -1794,6 +1794,23 @@ void ptx_thread_info::ptx_exec_inst(warp_inst_t &inst, unsigned lane_id) {
   bool skip = false;
   int op_classification = 0;
   addr_t pc = next_instr();
+  if (pc != inst.pc) {
+    static unsigned dump_count = 0;
+    if (dump_count < 32) {
+      dump_count++;
+      fprintf(stderr,
+              "[PC_ASSERT_DBG #%u] cycle=%llu warp_id=%u lane=%u hw_tid=%u "
+              "hw_wid=%u thread_pc=0x%lx inst_pc=0x%lx inst_op=%d "
+              "active_count=%u dbg_path=%u split_id=%d source_inst=%p\n",
+              dump_count,
+              (unsigned long long)(m_gpu->gpu_sim_cycle + m_gpu->gpu_tot_sim_cycle),
+              inst.warp_id(), lane_id, get_hw_tid(), get_hw_wid(),
+              (unsigned long)pc, (unsigned long)inst.pc, (int)inst.op,
+              inst.active_count(), inst.get_dbg_path(),
+              inst.get_dbg_split_id(), inst.get_dbg_source_inst());
+    }
+    fflush(stderr);
+  }
   assert(pc ==
          inst.pc);  // make sure timing model and functional model are in sync
   const ptx_instruction *pI = m_func_info->get_instruction(pc);
-- 
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