don't add constant cycles if they're 0

sinistarZ · Jul 24, 2021 · 9ee2017 · 9ee2017
1 parent 6944fdb
commit 9ee2017
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Showing 2 changed files with 8 additions and 4 deletions.
diff --git a/src/ARMJIT_A64/ARMJIT_Compiler.cpp b/src/ARMJIT_A64/ARMJIT_Compiler.cpp
@@ -681,7 +681,8 @@ void Compiler::Comp_BranchSpecialBehaviour(bool taken)
     {
         RegCache.PrepareExit();
 
-        ADD(RCycles, RCycles, ConstantCycles);
+        if (ConstantCycles)
+            ADD(RCycles, RCycles, ConstantCycles);
         QuickTailCall(X0, ARM_Ret);
     }
 }
@@ -832,7 +833,8 @@ JitBlockEntry Compiler::CompileBlock(ARM* cpu, bool thumb, FetchedInstr instrs[]
 
     RegCache.Flush();
 
-    ADD(RCycles, RCycles, ConstantCycles);
+    if (ConstantCycles)
+        ADD(RCycles, RCycles, ConstantCycles);
     QuickTailCall(X0, ARM_Ret);
 
     FlushIcache();

diff --git a/src/ARMJIT_x64/ARMJIT_Compiler.cpp b/src/ARMJIT_x64/ARMJIT_Compiler.cpp
@@ -680,7 +680,8 @@ void Compiler::Comp_SpecialBranchBehaviour(bool taken)
     {
         RegCache.PrepareExit();
 
-        ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm32(ConstantCycles));
+        if (ConstantCycles)
+            ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm32(ConstantCycles));
         JMP((u8*)&ARM_Ret, true);
     }
 }
@@ -841,7 +842,8 @@ JitBlockEntry Compiler::CompileBlock(ARM* cpu, bool thumb, FetchedInstr instrs[]
 
     RegCache.Flush();
 
-    ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm32(ConstantCycles));
+    if (ConstantCycles)
+        ADD(32, MDisp(RCPU, offsetof(ARM, Cycles)), Imm32(ConstantCycles));
     JMP((u8*)ARM_Ret, true);
 
 #ifdef JIT_PROFILING_ENABLED