diff --git a/Source/UnitTests/Core/PowerPC/DivUtilsTest.cpp b/Source/UnitTests/Core/PowerPC/DivUtilsTest.cpp
index b218745849..d015bc046a 100644
--- a/Source/UnitTests/Core/PowerPC/DivUtilsTest.cpp
+++ b/Source/UnitTests/Core/PowerPC/DivUtilsTest.cpp
@@ -9,12 +9,12 @@ using namespace JitCommon;
 
 TEST(DivUtils, Signed)
 {
-  SignedMagic m3 = SignedDivisionConstants(3);
-  SignedMagic m5 = SignedDivisionConstants(5);
-  SignedMagic m7 = SignedDivisionConstants(7);
-  SignedMagic minus3 = SignedDivisionConstants(-3);
-  SignedMagic minus5 = SignedDivisionConstants(-5);
-  SignedMagic minus7 = SignedDivisionConstants(-7);
+  const SignedMagic m3 = SignedDivisionConstants(3);
+  const SignedMagic m5 = SignedDivisionConstants(5);
+  const SignedMagic m7 = SignedDivisionConstants(7);
+  const SignedMagic minus3 = SignedDivisionConstants(-3);
+  const SignedMagic minus5 = SignedDivisionConstants(-5);
+  const SignedMagic minus7 = SignedDivisionConstants(-7);
 
   EXPECT_EQ(0x55555556, m3.multiplier);
   EXPECT_EQ(0, m3.shift);
@@ -33,11 +33,11 @@ TEST(DivUtils, Signed)
 
 TEST(DivUtils, Unsigned)
 {
-  UnsignedMagic m3 = UnsignedDivisionConstants(3);
-  UnsignedMagic m5 = UnsignedDivisionConstants(5);
-  UnsignedMagic m7 = UnsignedDivisionConstants(7);
-  UnsignedMagic m9 = UnsignedDivisionConstants(9);
-  UnsignedMagic m19 = UnsignedDivisionConstants(19);
+  const UnsignedMagic m3 = UnsignedDivisionConstants(3);
+  const UnsignedMagic m5 = UnsignedDivisionConstants(5);
+  const UnsignedMagic m7 = UnsignedDivisionConstants(7);
+  const UnsignedMagic m9 = UnsignedDivisionConstants(9);
+  const UnsignedMagic m19 = UnsignedDivisionConstants(19);
 
   EXPECT_EQ(0xAAAAAAABU, m3.multiplier);
   EXPECT_EQ(1, m3.shift);
diff --git a/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp b/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp
index 09c0f30169..05c80854b2 100644
--- a/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp
+++ b/Source/UnitTests/Core/PowerPC/Jit64Common/ConvertDoubleToSingle.cpp
@@ -57,7 +57,7 @@ TEST(Jit64, ConvertDoubleToSingle)
   Core::DeclareAsCPUThread();
   Common::ScopeGuard cpu_thread_guard([] { Core::UndeclareAsCPUThread(); });
 
-  TestCommonAsmRoutines routines(Core::System::GetInstance());
+  const TestCommonAsmRoutines routines(Core::System::GetInstance());
 
   for (const u64 input : double_test_values)
   {
diff --git a/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp b/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp
index 7c6bf963f4..a59f577c7b 100644
--- a/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp
+++ b/Source/UnitTests/Core/PowerPC/Jit64Common/Frsqrte.cpp
@@ -64,13 +64,13 @@ TEST(Jit64, Frsqrte)
   Core::DeclareAsCPUThread();
   Common::ScopeGuard cpu_thread_guard([] { Core::UndeclareAsCPUThread(); });
 
-  TestCommonAsmRoutines routines(Core::System::GetInstance());
+  const TestCommonAsmRoutines routines(Core::System::GetInstance());
 
   UReg_FPSCR fpscr;
 
   for (const u64 ivalue : double_test_values)
   {
-    double dvalue = std::bit_cast<double>(ivalue);
+    const double dvalue = std::bit_cast<double>(ivalue);
 
     u64 expected = std::bit_cast<u64>(Common::ApproximateReciprocalSquareRoot(dvalue));
 
diff --git a/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp b/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp
index 0c138a957c..2fd1a7302a 100644
--- a/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp
+++ b/Source/UnitTests/Core/PowerPC/JitArm64/ConvertSingleDouble.cpp
@@ -98,16 +98,16 @@ public:
     FreeCodeSpace();
   }
 
-  u64 ConvertSingleToDouble(u32 value) { return convert_single_to_double_lower(value); }
+  u64 ConvertSingleToDouble(const u32 value) const { return convert_single_to_double_lower(value); }
 
-  Pair<u64> ConvertSingleToDouble(u32 value1, u32 value2)
+  Pair<u64> ConvertSingleToDouble(const u32 value1, const u32 value2) const
   {
     return convert_single_to_double_pair(value1, value2);
   }
 
-  u32 ConvertDoubleToSingle(u64 value) { return convert_double_to_single_lower(value); }
+  u32 ConvertDoubleToSingle(const u64 value) const { return convert_double_to_single_lower(value); }
 
-  Pair<u32> ConvertDoubleToSingle(u64 value1, u64 value2)
+  Pair<u32> ConvertDoubleToSingle(const u64 value1, const u64 value2) const
   {
     return convert_double_to_single_pair(value1, value2);
   }
diff --git a/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp b/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp
index 3a38fa772b..14f1fdfe78 100644
--- a/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp
+++ b/Source/UnitTests/Core/PowerPC/JitArm64/Frsqrte.cpp
@@ -57,7 +57,7 @@ TEST(JitArm64, Frsqrte)
   Core::DeclareAsCPUThread();
   Common::ScopeGuard cpu_thread_guard([] { Core::UndeclareAsCPUThread(); });
 
-  TestFrsqrte test(Core::System::GetInstance());
+  const TestFrsqrte test(Core::System::GetInstance());
 
   for (const u64 ivalue : double_test_values)
   {