critical fix - add option to have masks for SB entries

1 files changed, 8 insertions, 0 deletions

diff --git a/src/abstract_hardware_model.h b/src/abstract_hardware_model.h
index 6ce1871..6331d6b 100644
--- a/src/abstract_hardware_model.h
+++ b/src/abstract_hardware_model.h
@@ -1162,6 +1162,10 @@ struct simd_set_info {
   unsigned num_active_threads;          // popcount of set_active_mask
   bool valid;                           // Whether this set has any active threads
   const inst_t *source_inst;            // Pointer to static decoded instruction (for MIMD)
+  // Mode 1 (mask-aware scoreboard): full issue-time active mask of the
+  // source_inst that owns this set. Used at writeback to release the
+  // matching (reg, mask) entry. Zero/empty when source_inst is NULL.
+  active_mask_t source_mask;
 
   // Mixed-space MEM co-issue (v2): per-set shared state.
   // Populated only when source_inst's space is shared/sstarr; otherwise
@@ -1176,6 +1180,7 @@ struct simd_set_info {
         num_active_threads(0), valid(false), source_inst(NULL), cycles(0) {
     set_active_mask.reset();
     active_mask_in_warp.reset();
+    source_mask.reset();
     for (unsigned i = 0; i < MAX_WARP_SIZE; i++) thread_ids[i] = 0;
   }
 
@@ -1329,6 +1334,9 @@ class warp_inst_t : public inst_t {
   void merge_simd_sets(const std::vector<simd_set_info> &other_sets);
   void set_source_inst_on_sets(const inst_t *src);
   void set_split_id_on_sets(unsigned split_id);
+  // Mode 1: stamp the source_inst's full active_mask onto each valid set
+  // for use at writeback (releaseRegisterMask).
+  void set_source_mask_on_sets(const active_mask_t &mask);
   static bool simd_sets_overlap(const std::vector<simd_set_info> &a,
                                 const std::vector<simd_set_info> &b);