This was a regression introduced by 4d8d045. stored_stack_pointer within
PPCSTATE was being accessed before the PPCSTATE (RBP) register was
initialized.
Fixes warnings like:
```
dolphin/Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp:132:37: warning: declaration shadows a local variable [-Wshadow]
reg_imm(a, s, inst.UIMM, [](u32 a, u32 b) { return a | b; }, &ARM64XEmitter::ORRI2R);
^
/Users/michaelmaltese/Downloads/dolphin/Source/Core/Core/PowerPC/JitArm64/JitArm64_Integer.cpp:122:7: note: previous declaration is here
u32 a = inst.RA, s = inst.RS;
^
```
Fixes warnings:
```
../Source/Core/DiscIO/VolumeGC.cpp: In member function 'virtual u8 DiscIO::CVolumeGC::GetDiscNumber() const':
../Source/Core/DiscIO/VolumeGC.cpp:178:10: error: 'disc_number' may be used uninitialized in this function [-Werror=maybe-uninitialized]
return disc_number;
^
../Source/Core/DiscIO/VolumeWiiCrypted.cpp: In member function 'virtual u8 DiscIO::CVolumeWiiCrypted::GetDiscNumber() const':
../Source/Core/DiscIO/VolumeWiiCrypted.cpp:258:10: error: 'disc_number' may be used uninitialized in this function [-Werror=maybe-uninitialized]
return disc_number;
^
../Source/Core/DiscIO/VolumeWiiCrypted.cpp: In member function 'virtual IOS::ES::TMDReader DiscIO::CVolumeWiiCrypted::GetTMD() const':
../Source/Core/DiscIO/VolumeWiiCrypted.cpp:123:20: error: 'tmd_address' may be used uninitialized in this function [-Werror=maybe-uninitialized]
tmd_address <<= 2;
^
```
Using `EXPECT_EQ` with boolean literals can cause a warning in certain
versions of GCC. See https://github.com/google/googletest/issues/322
Fixes warnings:
```
../Source/UnitTests/Common/BitSetTest.cpp: In member function 'virtual void BitSet_Basics_Test::TestBody()':
../Source/UnitTests/Common/BitSetTest.cpp:15:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/BitSetTest.cpp: In member function 'virtual void BitSet_BitGetSet_Test::TestBody()':
../Source/UnitTests/Common/BitSetTest.cpp:27:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp: In member function 'virtual void StringUtil_StringBeginsWith_Test::TestBody()':
../Source/UnitTests/Common/StringUtilTest.cpp:23:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:25:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:26:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:27:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp: In member function 'virtual void StringUtil_StringEndsWith_Test::TestBody()':
../Source/UnitTests/Common/StringUtilTest.cpp:35:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:37:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:38:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
../Source/UnitTests/Common/StringUtilTest.cpp:39:165: error: converting 'false' to pointer type for argument 1 of 'char testing::internal::IsNullLiteralHelper(testing::internal::Secret*)' [-Werror=conversion-null]
c
```
Fixes warnings like:
```
dolphin/Source/UnitTests/Common/BitUtilsTest.cpp:5:
../Externals/gtest/googletest/include/gtest/gtest.h:1392:11: warning: comparison of integers of different signs: 'const unsigned long' and 'const int' [-Wsign-compare]
if (lhs == rhs) {
~~~ ^ ~~~
../Externals/gtest/googletest/include/gtest/gtest.h:1421:12: note: in instantiation of function template specialization 'testing::internal::CmpHelperEQ<unsigned long, int>' requested here
return CmpHelperEQ(lhs_expression, rhs_expression, lhs, rhs);
^
dolphin/Source/UnitTests/Common/BitUtilsTest.cpp:12:3: note: in instantiation of function template specialization 'testing::internal::EqHelper<false>::Compare<unsigned long, int>' requested here
EXPECT_EQ(Common::BitSize<s8>(), 8);
^
../Externals/gtest/googletest/include/gtest/gtest.h:1924:63: note: expanded from macro 'EXPECT_EQ'
EqHelper<GTEST_IS_NULL_LITERAL_(val1)>::Compare, \
```
