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gsdx sw x64: small stack optimization on linux 

mov with the stack pointer require less bytecode
This commit is contained in:
Gregory Hainaut 2016-11-18 17:05:14 +01:00
parent 141c9e9c86
commit 051c5c4bf7
1 changed files with 50 additions and 10 deletions
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60
plugins/GSdx/GSDrawScanlineCodeGenerator.x64.avx.cpp
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@ -47,6 +47,18 @@
#if _M_SSE == 0x500 && (defined(_M_AMD64) || defined(_WIN64))
#ifdef _WIN64
#else
static const int _rz_rbx = -8 * 1;
static const int _rz_r12 = -8 * 2;
static const int _rz_r13 = -8 * 3;
static const int _rz_r14 = -8 * 4;
static const int _rz_r15 = -8 * 5;
static const int _rz_zs = -8 * 8;
static const int _rz_zd = -8 * 10;
static const int _rz_cov = -8 * 12;
#endif
void GSDrawScanlineCodeGenerator::Generate()
{
bool need_tex = m_sel.fb && m_sel.tfx != TFX_NONE;
@ -69,13 +81,13 @@ void GSDrawScanlineCodeGenerator::Generate()
#else
// No reservation on the stack as a red zone is available
push(rbp);
mov(ptr[rsp - 1 * 8], rbx);
mov(ptr[rsp - 2 * 8], r12);
mov(ptr[rsp - 3 * 8], r13);
mov(ptr[rsp + _rz_rbx], rbx);
mov(ptr[rsp + _rz_r12], r12);
mov(ptr[rsp + _rz_r13], r13);
if(need_clut)
mov(ptr[rsp - 4 * 8], r14);
mov(ptr[rsp + _rz_r14], r14);
if(need_tex)
mov(ptr[rsp - 5 * 8], r15);
mov(ptr[rsp + _rz_r15], r15);
#endif
mov(r10, (size_t)&m_test[0]);
@ -252,13 +264,13 @@ L("exit");
pop(rsi);
pop(rbx);
#else
mov(rbx, ptr[rsp - 1 * 8]);
mov(r12, ptr[rsp - 2 * 8]);
mov(r13, ptr[rsp - 3 * 8]);
mov(rbx, ptr[rsp + _rz_rbx]);
mov(r12, ptr[rsp + _rz_r12]);
mov(r13, ptr[rsp + _rz_r13]);
if(need_clut)
mov(r14, ptr[rsp - 4 * 8]);
mov(r14, ptr[rsp + _rz_r14]);
if(need_tex)
mov(r15, ptr[rsp - 5 * 8]);
mov(r15, ptr[rsp + _rz_r15]);
pop(rbp);
#endif
@ -375,7 +387,11 @@ void GSDrawScanlineCodeGenerator::Init()
vpshufd(xmm1, xmm1, _MM_SHUFFLE(3, 3, 3, 3));
vpsrlw(xmm1, 9);
#ifdef _WIN64
vmovdqa(ptr[_m_local + offsetof(GSScanlineLocalData, temp.cov)], xmm1);
#else
vmovdqa(ptr[rsp + _rz_cov], xmm1);
#endif
}
if(m_sel.tfx != TFX_NONE)
@ -631,7 +647,11 @@ void GSDrawScanlineCodeGenerator::TestZ(const Xmm& temp1, const Xmm& temp2)
if(m_sel.zwrite)
{
#ifdef _WIN64
vmovdqa(ptr[_m_local + offsetof(GSScanlineLocalData, temp.zs)], xmm0);
#else
vmovdqa(ptr[rsp + _rz_zs], xmm0);
#endif
}
}
else
@ -645,7 +665,11 @@ void GSDrawScanlineCodeGenerator::TestZ(const Xmm& temp1, const Xmm& temp2)
if(m_sel.zwrite && m_sel.zpsm < 2)
{
#ifdef _WIN64
vmovdqa(ptr[_m_local + offsetof(GSScanlineLocalData, temp.zd)], xmm1);
#else
vmovdqa(ptr[rsp + _rz_zd], xmm1);
#endif
}
// zd &= 0xffffffff >> m_sel.zpsm * 8;
@ -1198,7 +1222,11 @@ void GSDrawScanlineCodeGenerator::AlphaTFX()
if(m_sel.edge)
{
#ifdef _WIN64
vmovdqa(xmm0, ptr[_m_local + offsetof(GSScanlineLocalData, temp.cov)]);
#else
vmovdqa(xmm0, ptr[rsp + _rz_cov]);
#endif
}
else
{
@ -1219,7 +1247,11 @@ void GSDrawScanlineCodeGenerator::AlphaTFX()
if(m_sel.edge)
{
#ifdef _WIN64
vmovdqa(xmm1, ptr[_m_local + offsetof(GSScanlineLocalData, temp.cov)]);
#else
vmovdqa(xmm1, ptr[rsp + _rz_cov]);
#endif
}
else
{
@ -1524,7 +1556,11 @@ void GSDrawScanlineCodeGenerator::WriteZBuf()
}
if (m_sel.prim != GS_SPRITE_CLASS)
#ifdef _WIN64
vmovdqa(xmm1, ptr[_m_local + offsetof(GSScanlineLocalData, temp.zs)]);
#else
vmovdqa(xmm1, ptr[rsp + _rz_zs]);
#endif
else
vmovdqa(xmm1, ptr[_m_local + offsetof(GSScanlineLocalData, p.z)]);
@ -1532,7 +1568,11 @@ void GSDrawScanlineCodeGenerator::WriteZBuf()
{
// zs = zs.blend8(zd, zm);
#ifdef _WIN64
vpblendvb(xmm1, ptr[_m_local + offsetof(GSScanlineLocalData, temp.zd)], _zm);
#else
vpblendvb(xmm1, ptr[rsp + _rz_zd], _zm);
#endif
}
bool fast = m_sel.ztest ? m_sel.zpsm < 2 : m_sel.zpsm == 0 && m_sel.notest;