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Add several config options for more efficient code generation.

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This commit is contained in:
Skyth 2024-09-24 17:32:04 +03:00
parent 746947455d
commit 70497754d9
5 changed files with 753 additions and 487 deletions
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8
PowerRecomp/main.cpp
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@ -11,6 +11,14 @@ int main(int argc, char* argv[])
if (strstr(argv[1], ".xex") != nullptr)
{
SWARecompiler recompiler;
recompiler.config.skipLr = true;
recompiler.config.ctrAsLocalVariable = true;
recompiler.config.xerAsLocalVariable = true;
recompiler.config.reservedRegisterAsLocalVariable = true;
recompiler.config.skipMsr = true;
recompiler.config.crRegistersAsLocalVariables = true;
recompiler.config.nonArgumentRegistersAsLocalVariables = true;
recompiler.config.nonVolatileRegistersAsLocalVariables = true;
std::println("Loading executable...");
recompiler.LoadExecutable(argv[1]);

1115
PowerRecomp/recompiler.cpp
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File diff suppressed because it is too large Load Diff

36
PowerRecomp/recompiler.h
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@ -7,6 +7,33 @@ struct SwitchTable
std::vector<size_t> labels;
};
struct RecompilerLocalVariables
{
bool ctr{};
bool xer{};
bool reserved{};
bool cr[8]{};
bool r[32]{};
bool f[32]{};
bool v[128]{};
bool env{};
bool temp{};
bool vTemp{};
bool ea{};
};
struct RecompilerConfig
{
bool skipLr = false;
bool ctrAsLocalVariable = false;
bool xerAsLocalVariable = false;
bool reservedRegisterAsLocalVariable = false;
bool skipMsr = false;
bool crRegistersAsLocalVariables = false;
bool nonArgumentRegistersAsLocalVariables = false;
bool nonVolatileRegistersAsLocalVariables = false;
};
struct Recompiler
{
Image image;
@ -15,8 +42,10 @@ struct Recompiler
std::string out;
size_t cppFileIndex = 0;
std::vector<uint8_t> temp;
std::string tempString;
uint32_t setJmpAddress = 0;
uint32_t longJmpAddress = 0;
RecompilerConfig config;
void LoadSwitchTables(const char* filePath);
void LoadExecutable(const char* filePath);
@ -34,7 +63,12 @@ struct Recompiler
out += '\n';
}
bool Recompile(const Function& fn, uint32_t base, const ppc_insn& insn, std::unordered_map<size_t, SwitchTable>::iterator& switchTable);
bool Recompile(
const Function& fn,
uint32_t base,
const ppc_insn& insn,
std::unordered_map<size_t, SwitchTable>::iterator& switchTable,
RecompilerLocalVariables& localVariables);
bool Recompile(const Function& fn);

2
PowerRecomp/test_recompiler.cpp
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@ -45,6 +45,7 @@ void TestRecompiler::RecompileTests(const char* srcDirectoryPath, const char* ds
auto stem = file.path().stem().string();
recompiler.Analyse(stem);
recompiler.println("#define PPC_CONFIG_H_INCLUDED");
recompiler.println("#include <ppc_context.h>\n");
recompiler.println("#define __debugbreak()\n");
@ -95,6 +96,7 @@ void TestRecompiler::RecompileTests(const char* srcDirectoryPath, const char* ds
FILE* file = fopen(std::format("{}/main.cpp", dstDirectoryPath).c_str(), "w");
std::string main;
std::println(file, "#define PPC_CONFIG_H_INCLUDED");
std::println(file, "#include <ppc_context.h>");
std::println(file, "#include <Windows.h>");
std::println(file, "#include <print>\n");

79
PowerUtils/ppc_context.h
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@ -1,4 +1,9 @@
#pragma once
#ifndef PPC_CONFIG_H_INCLUDED
#error "ppc_config.h must be included before ppc_context.h"
#endif
#include <cstdint>
#include <cstdlib>
#include <cstring>
@ -7,6 +12,7 @@
#ifdef __clang__
#include <x86intrin.h>
#define PPC_NOINLINE __attribute__((noinline))
#else
#include <intrin.h>
#define __restrict__ __restrict
@ -16,16 +22,13 @@
#define __builtin_isnan isnan
#define __builtin_assume __assume
#define __builtin_unreachable() __assume(0)
#define PPC_NOINLINE __declspec(noinline)
#endif
#define PPC_FUNC(x) extern "C" void x(PPCContext& __restrict__ ctx, uint8_t* base)
#define PPC_FUNC(x) extern "C" PPC_NOINLINE void x(PPCContext& __restrict__ ctx, uint8_t* base)
#define PPC_FUNC_PROLOGUE() \
__builtin_assume((reinterpret_cast<size_t>(base) & 0xFFFFFFFF) == 0); \
PPCContext env; \
PPCRegister temp; \
PPCVRegister vtemp; \
uint32_t ea
__builtin_assume(((size_t)base & 0xFFFFFFFF) == 0); \
#define PPC_LOAD_U8(x) *(uint8_t*)(base + (x))
#define PPC_LOAD_U16(x) __builtin_bswap16(*(uint16_t*)(base + (x)))
@ -37,6 +40,9 @@
#define PPC_STORE_U32(x, y) *(uint32_t*)(base + (x)) = __builtin_bswap32(y)
#define PPC_STORE_U64(x, y) *(uint64_t*)(base + (x)) = __builtin_bswap64(y)
#define PPC_CALL_FUNC(x) x(ctx, base)
#define PPC_CALL_INDIRECT_FUNC(x) (*(PPCFunc**)(ctx.fn + uint64_t(x) * 2))(ctx, base)
typedef void PPCFunc(struct PPCContext& __restrict__ ctx, uint8_t* base);
struct PPCFuncMapping
@ -83,7 +89,7 @@ struct PPCCRRegister
};
template<typename T>
void compare(T left, T right, const PPCXERRegister& xer)
inline void compare(T left, T right, const PPCXERRegister& xer) noexcept
{
lt = left < right;
gt = left > right;
@ -91,7 +97,7 @@ struct PPCCRRegister
so = xer.so;
}
void compare(double left, double right)
inline void compare(double left, double right) noexcept
{
un = __builtin_isnan(left) || __builtin_isnan(right);
lt = !un && (left < right);
@ -99,7 +105,7 @@ struct PPCCRRegister
eq = !un && (left == right);
}
void setFromMask(__m128 mask, int imm)
inline void setFromMask(__m128 mask, int imm) noexcept
{
int m = _mm_movemask_ps(mask);
lt = m == imm; // all equal
@ -108,7 +114,7 @@ struct PPCCRRegister
so = 0;
}
void setFromMask(__m128i mask, int imm)
inline void setFromMask(__m128i mask, int imm) noexcept
{
int m = _mm_movemask_epi8(mask);
lt = m == imm; // all equal
@ -139,20 +145,20 @@ struct PPCFPSCRRegister
{
uint32_t csr;
uint32_t loadFromHost()
inline uint32_t loadFromHost() noexcept
{
csr = _mm_getcsr();
return (0x6C >> ((csr & _MM_ROUND_MASK) >> 12)) & 3;
}
void storeFromGuest(uint32_t value)
inline void storeFromGuest(uint32_t value) noexcept
{
csr &= ~_MM_ROUND_MASK;
csr |= ((0x6C >> (2 * (value & 3))) & 3) << 13;
_mm_setcsr(csr);
}
void setFlushMode(bool enable)
inline void setFlushMode(bool enable) noexcept
{
constexpr uint32_t mask = _MM_FLUSH_ZERO_MASK | _MM_DENORMALS_ZERO_MASK;
uint32_t value = enable ? (csr | mask) : (csr & ~mask);
@ -167,13 +173,25 @@ struct PPCFPSCRRegister
struct PPCContext
{
PPCFunc** fn;
uint64_t lr;
PPCRegister ctr;
PPCXERRegister xer;
PPCRegister reserved;
uint32_t msr = 0x200A000;
uint8_t* fn;
#ifndef PPC_CONFIG_SKIP_LR
uint64_t lr;
#endif
#ifndef PPC_CONFIG_CTR_AS_LOCAL
PPCRegister ctr;
#endif
#ifndef PPC_CONFIG_XER_AS_LOCAL
PPCXERRegister xer;
#endif
#ifndef PPC_CONFIG_RESERVED_AS_LOCAL
PPCRegister reserved;
#endif
#ifndef PPC_CONFIG_SKIP_MSR
uint32_t msr = 0x200A000;
#endif
#ifndef PPC_CONFIG_CR_AS_LOCAL
PPCCRRegister cr0;
PPCCRRegister cr1;
PPCCRRegister cr2;
@ -182,10 +200,15 @@ struct PPCContext
PPCCRRegister cr5;
PPCCRRegister cr6;
PPCCRRegister cr7;
#endif
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
PPCRegister r0;
#endif
PPCRegister r1;
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
PPCRegister r2;
#endif
PPCRegister r3;
PPCRegister r4;
PPCRegister r5;
@ -194,9 +217,12 @@ struct PPCContext
PPCRegister r8;
PPCRegister r9;
PPCRegister r10;
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
PPCRegister r11;
PPCRegister r12;
#endif
PPCRegister r13;
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
PPCRegister r14;
PPCRegister r15;
PPCRegister r16;
@ -215,10 +241,13 @@ struct PPCContext
PPCRegister r29;
PPCRegister r30;
PPCRegister r31;
#endif
PPCFPSCRRegister fpscr;
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
PPCRegister f0;
#endif
PPCRegister f1;
PPCRegister f2;
PPCRegister f3;
@ -232,6 +261,7 @@ struct PPCContext
PPCRegister f11;
PPCRegister f12;
PPCRegister f13;
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
PPCRegister f14;
PPCRegister f15;
PPCRegister f16;
@ -250,7 +280,8 @@ struct PPCContext
PPCRegister f29;
PPCRegister f30;
PPCRegister f31;
#endif
PPCVRegister v0;
PPCVRegister v1;
PPCVRegister v2;
@ -265,6 +296,7 @@ struct PPCContext
PPCVRegister v11;
PPCVRegister v12;
PPCVRegister v13;
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
PPCVRegister v14;
PPCVRegister v15;
PPCVRegister v16;
@ -283,6 +315,8 @@ struct PPCContext
PPCVRegister v29;
PPCVRegister v30;
PPCVRegister v31;
#endif
#ifndef PPC_CONFIG_NON_ARGUMENT_AS_LOCAL
PPCVRegister v32;
PPCVRegister v33;
PPCVRegister v34;
@ -315,6 +349,8 @@ struct PPCContext
PPCVRegister v61;
PPCVRegister v62;
PPCVRegister v63;
#endif
#ifndef PPC_CONFIG_NON_VOLATILE_AS_LOCAL
PPCVRegister v64;
PPCVRegister v65;
PPCVRegister v66;
@ -379,6 +415,7 @@ struct PPCContext
PPCVRegister v125;
PPCVRegister v126;
PPCVRegister v127;
#endif
};
inline uint8_t VectorMaskL[] =