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Merge pull request #3787 from wwylele/shader-jit-state

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shader/jit: preserve integer & condition register across invocation
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James Rowe 2018-06-09 18:38:05 -06:00 • committed by GitHub
commit cf9bfe0690
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1 changed files with 23 additions and 4 deletions
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27
src/video_core/shader/shader_jit_x64_compiler.cpp
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@ -580,6 +580,18 @@ void JitShader::Compile_RSQ(Instruction instr) {
void JitShader::Compile_NOP(Instruction instr) {}
void JitShader::Compile_END(Instruction instr) {
// Save conditional code
mov(byte[STATE + offsetof(UnitState, conditional_code[0])], COND0.cvt8());
mov(byte[STATE + offsetof(UnitState, conditional_code[1])], COND1.cvt8());
// Save address/loop registers
sar(ADDROFFS_REG_0, 4);
sar(ADDROFFS_REG_1, 4);
sar(LOOPCOUNT_REG, 4);
mov(dword[STATE + offsetof(UnitState, address_registers[0])], ADDROFFS_REG_0.cvt32());
mov(dword[STATE + offsetof(UnitState, address_registers[1])], ADDROFFS_REG_1.cvt32());
mov(dword[STATE + offsetof(UnitState, address_registers[2])], LOOPCOUNT_REG);
ABI_PopRegistersAndAdjustStack(*this, ABI_ALL_CALLEE_SAVED, 8, 16);
ret();
}
@ -896,10 +908,17 @@ void JitShader::Compile(const std::array<u32, MAX_PROGRAM_CODE_LENGTH>* program_
mov(UNIFORMS, ABI_PARAM1);
mov(STATE, ABI_PARAM2);
// Zero address/loop registers
xor_(ADDROFFS_REG_0.cvt32(), ADDROFFS_REG_0.cvt32());
xor_(ADDROFFS_REG_1.cvt32(), ADDROFFS_REG_1.cvt32());
xor_(LOOPCOUNT_REG, LOOPCOUNT_REG);
// Load address/loop registers
movsxd(ADDROFFS_REG_0, dword[STATE + offsetof(UnitState, address_registers[0])]);
movsxd(ADDROFFS_REG_1, dword[STATE + offsetof(UnitState, address_registers[1])]);
mov(LOOPCOUNT_REG, dword[STATE + offsetof(UnitState, address_registers[2])]);
shl(ADDROFFS_REG_0, 4);
shl(ADDROFFS_REG_1, 4);
shl(LOOPCOUNT_REG, 4);
// Load conditional code
mov(COND0, byte[STATE + offsetof(UnitState, conditional_code[0])]);
mov(COND1, byte[STATE + offsetof(UnitState, conditional_code[1])]);
// Used to set a register to one
static const __m128 one = {1.f, 1.f, 1.f, 1.f};