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gsdx sw x64: shuffle memory allocation 

tex address is a3
vm address is a1

Could help to avoid REX prefix
Reduce prologue/epilogue register copy

Byte code size 41893 => 38912 (on my testcase)
This commit is contained in:
Gregory Hainaut 2016-11-20 19:21:24 +01:00
parent b76305a0d2
commit 37379d5d1d
1 changed files with 24 additions and 23 deletions
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47
plugins/GSdx/GSDrawScanlineCodeGenerator.x64.avx.cpp
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@ -26,11 +26,11 @@
#if _M_SSE < 0x501 && (defined(_M_AMD64) || defined(_WIN64))
// Ease the reading of the code
#define _m_local r11
#define _m_local__gd r12
#define _m_local__gd__vm r13
#define _m_local__gd__clut r14
#define _m_local__gd__tex r15
#define _m_local r12
#define _m_local__gd r13
#define _m_local__gd__vm a1
#define _m_local__gd__clut r11
#define _m_local__gd__tex a3
// More pretty name
#define _z xmm8
#define _f xmm9
@ -89,23 +89,22 @@ void GSDrawScanlineCodeGenerator::Generate_AVX()
// No reservation on the stack as a red zone is available
push(rbp);
mov(ptr[rsp + _rz_rbx], rbx);
mov(ptr[rsp + _rz_r12], r12);
mov(ptr[rsp + _rz_r13], r13);
if(need_clut)
mov(ptr[rsp + _rz_r14], r14);
if(need_tex)
mov(ptr[rsp + _rz_r15], r15);
if (!m_rip)
{
mov(ptr[rsp + _rz_r12], r12);
mov(ptr[rsp + _rz_r13], r13);
}
#endif
mov(r10, (size_t)&m_test[0]);
mov(_m_local, (size_t)&m_local);
mov(_m_local__gd, _rip_local(gd));
if (!m_rip)
{
mov(_m_local, (size_t)&m_local);
mov(_m_local__gd, _rip_local(gd));
}
mov(_m_local__gd__vm, _rip_global(vm));
if(need_clut)
mov(_m_local__gd__clut, _rip_global(clut));
if(need_tex)
mov(_m_local__gd__tex, _rip_global(tex));
Init_AVX();
@ -272,12 +271,11 @@ L("exit");
pop(rbx);
#else
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 + _rz_r14]);
if(need_tex)
mov(r15, ptr[rsp + _rz_r15]);
if (!m_rip)
{
mov(r12, ptr[rsp + _rz_r12]);
mov(r13, ptr[rsp + _rz_r13]);
}
pop(rbp);
#endif
@ -482,13 +480,16 @@ void GSDrawScanlineCodeGenerator::Init_AVX()
}
}
if(m_sel.fwrite && m_sel.fpsm == 2 && m_sel.dthe)
{
// On linux, a2 is edx which will be used for fzm
// In all case, it will require a mov in dthe code, so let's keep the value on the stack
mov(ptr[rsp + _rz_top], a2);
}
mov(_m_local__gd__vm, _rip_global(vm));
if(m_sel.fb && m_sel.tfx != TFX_NONE)
mov(_m_local__gd__tex, _rip_global(tex));
}
void GSDrawScanlineCodeGenerator::Step_AVX()