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* x86_64: Don't waste time initializing/finalizing saved_standard_registers and saved_mm_registers arrays on every procedure. Initialize once, reinitialize if target system happens to change, and let finalization happen implicitly on shutdown.
git-svn-id: trunk@19672 -
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@ -35,7 +35,6 @@ unit cgcpu;
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type
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type
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tcgx86_64 = class(tcgx86)
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tcgx86_64 = class(tcgx86)
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procedure init_register_allocators;override;
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procedure init_register_allocators;override;
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procedure done_register_allocators;override;
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procedure g_proc_entry(list : TAsmList; parasize:longint; nostackframe:boolean);override;
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procedure g_proc_entry(list : TAsmList; parasize:longint; nostackframe:boolean);override;
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procedure g_proc_exit(list : TAsmList;parasize:longint;nostackframe:boolean);override;
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procedure g_proc_exit(list : TAsmList;parasize:longint;nostackframe:boolean);override;
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@ -59,6 +58,7 @@ unit cgcpu;
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const
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const
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win64_saved_std_regs : array[0..6] of tsuperregister = (RS_RBX,RS_RDI,RS_RSI,RS_R12,RS_R13,RS_R14,RS_R15);
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win64_saved_std_regs : array[0..6] of tsuperregister = (RS_RBX,RS_RDI,RS_RSI,RS_R12,RS_R13,RS_R14,RS_R15);
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others_saved_std_regs : array[0..4] of tsuperregister = (RS_RBX,RS_R12,RS_R13,RS_R14,RS_R15);
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others_saved_std_regs : array[0..4] of tsuperregister = (RS_RBX,RS_R12,RS_R13,RS_R14,RS_R15);
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saved_regs_length : array[boolean] of longint = (5,7);
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win64_saved_xmm_regs : array[0..9] of tsuperregister = (RS_XMM6,RS_XMM7,
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win64_saved_xmm_regs : array[0..9] of tsuperregister = (RS_XMM6,RS_XMM7,
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RS_XMM8,RS_XMM9,RS_XMM10,RS_XMM11,RS_XMM12,RS_XMM13,RS_XMM14,RS_XMM15);
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RS_XMM8,RS_XMM9,RS_XMM10,RS_XMM11,RS_XMM12,RS_XMM13,RS_XMM14,RS_XMM15);
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@ -67,24 +67,28 @@ unit cgcpu;
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framepointer : tsuperregister;
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framepointer : tsuperregister;
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begin
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begin
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inherited init_register_allocators;
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inherited init_register_allocators;
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if target_info.system=system_x86_64_win64 then
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if (length(saved_standard_registers)<>saved_regs_length[target_info.system=system_x86_64_win64]) then
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begin
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begin
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SetLength(saved_standard_registers,Length(win64_saved_std_regs));
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if target_info.system=system_x86_64_win64 then
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SetLength(saved_mm_registers,Length(win64_saved_xmm_regs));
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begin
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SetLength(saved_standard_registers,Length(win64_saved_std_regs));
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SetLength(saved_mm_registers,Length(win64_saved_xmm_regs));
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for i:=low(win64_saved_std_regs) to high(win64_saved_std_regs) do
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for i:=low(win64_saved_std_regs) to high(win64_saved_std_regs) do
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saved_standard_registers[i]:=win64_saved_std_regs[i];
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saved_standard_registers[i]:=win64_saved_std_regs[i];
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for i:=low(win64_saved_xmm_regs) to high(win64_saved_xmm_regs) do
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for i:=low(win64_saved_xmm_regs) to high(win64_saved_xmm_regs) do
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saved_mm_registers[i]:=win64_saved_xmm_regs[i];
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saved_mm_registers[i]:=win64_saved_xmm_regs[i];
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end
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end
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else
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else
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begin
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begin
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SetLength(saved_standard_registers,Length(others_saved_std_regs));
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SetLength(saved_standard_registers,Length(others_saved_std_regs));
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SetLength(saved_mm_registers,0);
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SetLength(saved_mm_registers,0);
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for i:=low(others_saved_std_regs) to high(others_saved_std_regs) do
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for i:=low(others_saved_std_regs) to high(others_saved_std_regs) do
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saved_standard_registers[i]:=others_saved_std_regs[i];
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saved_standard_registers[i]:=others_saved_std_regs[i];
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end;
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end;
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end;
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if assigned(current_procinfo) then
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if assigned(current_procinfo) then
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framepointer:=getsupreg(current_procinfo.framepointer)
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framepointer:=getsupreg(current_procinfo.framepointer)
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@ -104,13 +108,6 @@ unit cgcpu;
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end;
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end;
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procedure Tcgx86_64.done_register_allocators;
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begin
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inherited done_register_allocators;
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setlength(saved_standard_registers,0);
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setlength(saved_mm_registers,0);
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end;
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procedure tcgx86_64.g_proc_entry(list : TAsmList;parasize:longint;nostackframe:boolean);
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procedure tcgx86_64.g_proc_entry(list : TAsmList;parasize:longint;nostackframe:boolean);
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var
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var
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hitem: tlinkedlistitem;
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hitem: tlinkedlistitem;
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