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CPU/Recompiler: Align dispatchers and JIT blocks

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A couple of percent difference if we're lucky. Practically probably <1%.
This commit is contained in:
Stenzek
2024-12-29 18:11:39 +10:00
parent 82a843c121
commit 242561debf
8 changed files with 127 additions and 55 deletions
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11
src/core/cpu_code_cache.cpp
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@@ -1492,18 +1492,15 @@ void CPU::CodeCache::CommitFarCode(u32 length)
void CPU::CodeCache::AlignCode(u32 alignment)
{
#if defined(CPU_ARCH_X64)
constexpr u8 padding_value = 0xcc; // int3
#else
constexpr u8 padding_value = 0x00;
#endif
DebugAssert(Common::IsPow2(alignment));
const u32 num_padding_bytes =
std::min(static_cast<u32>(Common::AlignUpPow2(reinterpret_cast<uintptr_t>(s_free_code_ptr), alignment) -
reinterpret_cast<uintptr_t>(s_free_code_ptr)),
GetFreeCodeSpace());
std::memset(s_free_code_ptr, padding_value, num_padding_bytes);
if (num_padding_bytes > 0)
EmitAlignmentPadding(s_free_code_ptr, num_padding_bytes);
s_free_code_ptr += num_padding_bytes;
s_code_used += num_padding_bytes;
}