cpu-o3: fix earlyscoreboard should not update by float and vector (#245)

Change-Id: I264e4366cdb03f9ed1a34840879cad380bbae20d
OpenXiangShan · Dec 27, 2024 · 9463f90 · 9463f90
1 parent dbf88fd
commit 9463f90
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Showing 2 changed files with 10 additions and 9 deletions.
diff --git a/src/cpu/o3/FuncUnitConfig.py b/src/cpu/o3/FuncUnitConfig.py
@@ -44,7 +44,8 @@
 from m5.objects.FuncUnit import *
 
 class IntMisc(FUDesc):
-    opList = [ OpDesc(opClass='No_OpClass') ]
+    opList = [ OpDesc(opClass='No_OpClass'),
+               OpDesc(opClass='VectorConfig') ]
 
 class IntALU(FUDesc):
     opList = [ OpDesc(opClass='IntAlu') ]
@@ -126,8 +127,7 @@ class SIMD_Unit(FUDesc):
                OpDesc(opClass='VectorIntegerReduce'),
                OpDesc(opClass='VectorFloatReduce'),
                OpDesc(opClass='VectorMisc'),
-               OpDesc(opClass='VectorIntegerExtension'),
-               OpDesc(opClass='VectorConfig')]
+               OpDesc(opClass='VectorIntegerExtension')]
 
 class PredALU(FUDesc):
     opList = [ OpDesc(opClass='SimdPredAlu') ]

diff --git a/src/cpu/o3/issue_queue.cc b/src/cpu/o3/issue_queue.cc
@@ -902,13 +902,14 @@ Scheduler::specWakeUpDependents(const DynInstPtr& inst, IssueQue* from_issue_que
                 from_issue_queue->getName(), to->getName(), wakeDelay);
         if (wakeDelay == 0) {
             to->wakeUpDependents(inst, true);
-            for (int i = 0; i < inst->numDestRegs(); i++) {
-                PhysRegIdPtr dst = inst->renamedDestIdx(i);
-                if (dst->isFixedMapping()) [[unlikely]] {
-                    continue;
-                    ;
+            if (!(inst->isFloating() || inst->isVector())) {
+                for (int i = 0; i < inst->numDestRegs(); i++) {
+                    PhysRegIdPtr dst = inst->renamedDestIdx(i);
+                    if (dst->isFixedMapping()) [[unlikely]] {
+                        continue;
+                    }
+                    earlyScoreboard[dst->flatIndex()] = true;
                 }
-                earlyScoreboard[dst->flatIndex()] = true;
             }
         } else {
             auto wakeEvent = new SpecWakeupCompletion(inst, to);