[vuop_gen] add assertion on allowed LMUL on widening & narrowing modes

riscv-software-src · Dec 13, 2024 · 2fe674d · 2fe674d
1 parent f9c8a80
commit 2fe674d
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/core/VectorUopGenerator.cpp b/core/VectorUopGenerator.cpp
@@ -174,6 +174,9 @@ namespace olympia
             || uop_gen_type == InstArchInfo::UopGenType::MAC_WIDE
             || uop_gen_type == InstArchInfo::UopGenType::NARROWING)
         {
+            sparta_assert(vector_config->getLMUL() <= 4,
+                          "LMUL must be lower or equal to 4.\n" 
+                          "These modes set EMUL = 2 * LMUL <= 8.");
             // TODO: Add parameter to support dual dests
             num_uops_to_generate_ *= 2;
         }