data_layout.h File Reference

#include "stab.h"
#include "wn.h"
#include "targ_sim.h"

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Enumerations
enum	STACK_DIR { INCREMENT, DECREMENT }
enum	STACK_MODEL { SMODEL_UNDEF = 0, SMODEL_SMALL = 1, SMODEL_LARGE = 2, SMODEL_DYNAMIC = 3 }
Functions
STACK_DIR	Stack_Direction (void)
void	Initialize_Stack_Frame (WN *PU_tree)
void	Calculate_Stack_Frame_Sizes (WN *PU_tree)
INT64	Finalize_Stack_Frame (void)
void	Check_Actual_Stack_Size (WN *call_tree)
ST *	Allocate_Vararg_Formal (void)
BOOL	Is_Allocated (ST *st)
void	Allocate_Object (ST *st)
void	Allocate_Temp_To_Memory (ST *st)
ST *	Get_Altentry_UpFormal_Symbol (ST *formal, PLOC ploc)
void	Reset_UPFORMAL_Segment (void)
ST *	Get_Vararg_Symbol (PLOC)
void	Allocate_File_Statics (void)
void	Pad_Global_Arrays ()
BOOL	Uses_Small_Offset (ST *st, WN_OFFSET wn_ofst)
INT32	Stack_Alignment (void)
BOOL	ST_on_stack (ST *)
BOOL	ST_pu_defined (ST *)
ST *	Get_ST_formal_ref_base (const ST *sym)
void	Set_ST_formal_ref_base (const ST *sym, ST *base)
PREG_NUM	Get_ST_formal_preg_num (const ST *base)
void	Set_ST_formal_preg_num (const ST *base, PREG_NUM p)
BOOL	ST_has_formal_preg_num (const ST *const st)
UINT32	Get_PU_arg_area_size (PU_IDX)
void	Set_PU_arg_area_size (PU_IDX, UINT32 size)
ST *	Find_Special_Return_Address_Symbol (void)
INT	Stack_Offset_Adjustment_For_PU (void)
Variables
ST *	SP_Sym
ST *	FP_Sym
ST *	Local_Spill_Sym
STACK_MODEL	Current_PU_Stack_Model
INT32	Current_PU_Actual_Size

---

Enumeration Type Documentation

enum STACK_DIR

Enumerator:

INCREMENT
DECREMENT

Definition at line 69 of file data_layout.h.

enum STACK_MODEL

Enumerator:

SMODEL_UNDEF
SMODEL_SMALL
SMODEL_LARGE
SMODEL_DYNAMIC

Definition at line 72 of file data_layout.h.

---

Function Documentation

void Allocate_File_Statics

(

void

)

Definition at line 2470 of file data_layout.cxx.

References Allocate_Object(), CLASS_CONST, CLASS_VAR, DevWarn(), Emit_Global_Data, For_all(), FOREACH_SYMBOL, Get_Trace(), GLOBAL_SYMTAB, Has_Base_Block(), SCLASS_COMMON, SCLASS_REG, Set_ST_base(), St_Attr_Table, ST_ATTR_Table_Size(), ST_class(), ST_export(), ST_index(), ST_is_fill_align(), ST_is_reshaped(), ST_name(), ST_name_idx(), ST_sclass(), ST_type(), TP_DATALAYOUT, Trace_Frame, and TY_size().

Referenced by Phase_Init().

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void Allocate_Object

(

ST *

st

)

Definition at line 2330 of file data_layout.cxx.

References _SEC_BSS, _SEC_CPLINIT, _SEC_DATA, _SEC_DISTR_ARRAY, _SEC_EH_REGION, _SEC_EH_REGION_SUPP, _SEC_LBSS, _SEC_LDATA, _SEC_RDATA, _SEC_TEXT, _SEC_THREAD_PRIVATE_FUNCS, Adjusted_Alignment(), Allocate_Object_To_Section(), Assign_Object_To_Section(), Assign_ST_To_Named_Section(), Base_Symbol(), Clear_ST_is_not_used(), DevWarn(), FALSE, File_info, FILE_INFO_ipa(), Find_Section_Name_For_ST(), Has_Base_Block(), Is_Allocated(), Is_True, Make_Align_Type(), name, NULL, Process_Stack_Variable(), SCLASS_AUTO, SCLASS_COMMON, SCLASS_CPLINIT, SCLASS_DGLOBAL, SCLASS_DISTR_ARRAY, SCLASS_EH_REGION, SCLASS_EH_REGION_SUPP, SCLASS_EXTERN, SCLASS_FORMAL, SCLASS_FORMAL_REF, SCLASS_FSTATIC, SCLASS_PSTATIC, SCLASS_REG, SCLASS_TEXT, SCLASS_THREAD_PRIVATE_FUNCS, SCLASS_UGLOBAL, SCLASS_UNKNOWN, Set_ST_gprel(), Set_ST_type(), SF_Block, SFSEG_FORMAL, Shorten_Section(), ST_has_named_section(), ST_init_value_zero(), ST_is_constant(), ST_is_initialized(), ST_is_not_used(), ST_is_thread_private(), ST_is_weak_symbol(), ST_sclass(), and ST_type().

Referenced by Allocate_File_Statics(), Fill_Align_Symbol(), Finalize_Stack_Frame(), finalize_inito::operator()(), and St_Block_Union().

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void Allocate_Temp_To_Memory

(

ST *

st

)

Definition at line 2111 of file data_layout.cxx.

References Is_True, Process_Stack_Variable(), SCLASS_AUTO, Set_ST_is_temp_var(), and ST_sclass().

Referenced by Allocate_Local_Spill_Sym().

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ST* Allocate_Vararg_Formal

(

void

)

void Calculate_Stack_Frame_Sizes

(

WN *

PU_tree

)

Definition at line 1867 of file data_layout.cxx.

References Allocate_Local_Spill_Sym(), Bind_Stack_Frame(), Current_PU_Actual_Size, FP_Sym, fprintf(), Get_Current_PU_ST(), Init_Frame_For_PU(), MAX, Max_Arg_Area_Bytes(), Merge_Fixed_Stack_Frame(), MTYPE_byte_size, ROUNDUP, SP_Sym, Spill_Int_Mtype, ST_asm_function_st(), TFile, and Trace_Frame.

Referenced by Do_WOPT_and_CG_with_Regions().

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void Check_Actual_Stack_Size

(

WN *

call_tree

)

Definition at line 1104 of file data_layout.cxx.

References Calc_Actual_Area(), Current_PU_Actual_Size, FALSE, FmtAssert, OPR_CALL, OPR_ICALL, OPR_PICCALL, ST_pu_type(), WN_operator(), WN_st(), and WN_ty().

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INT64 Finalize_Stack_Frame

(

void

)

Definition at line 2008 of file data_layout.cxx.

References Allocate_Object(), Assign_Offset(), CLASS_VAR, Clear_Vararg_Symbols(), Current_PU_Stack_Model, CURRENT_SYMTAB, DevWarn(), Early_Terminate(), EC_LAY_stack_limit, ErrMsg(), FmtAssert, For_all(), FOREACH_SYMBOL, FP_Sym, fprintf(), Frame_Has_Calls, Get_Current_PU(), Inito_Table, MAX, Max_Small_Frame_Offset, MERGE_SEGMENT, PU_has_nested(), RC_OVERFLOW_ERROR, ROUNDUP, SEG_SIZE, Set_Error_Phase(), Set_ST_base(), SF_Block, SFSEG_FORMAL, SFSEG_UPFORMAL, SMODEL_DYNAMIC, SMODEL_LARGE, SMODEL_SMALL, SP_Sym, ST_class(), ST_has_nested_ref(), ST_is_not_used(), stack_align, Stack_Offset_Adjustment, STB_size(), TFile, Trace_Frame, Trace_Stack_Segments(), and TRUE.

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ST* Find_Special_Return_Address_Symbol

(

void

)

Definition at line 838 of file data_layout.cxx.

References CURRENT_SYMTAB, For_all_until(), NULL, ST_ptr(), and St_Table.

Referenced by Initialize_Stack_Frame().

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ST* Get_Altentry_UpFormal_Symbol	(	ST *	formal,
		PLOC	ploc
	)

Definition at line 1435 of file data_layout.cxx.

References Assign_Object_To_Frame_Segment(), Clear_ST_gprel(), Copy_ST(), Formal_Save_Area_Size, MTYPE_byte_size, PLOC_offset, Pointer_Mtype, PUSH_FRAME_POINTER_ON_STACK, PUSH_RETURN_ADDRESS_ON_STACK, Save_Str2(), SCLASS_FORMAL, Set_ST_name, Set_ST_sclass(), SFSEG_UPFORMAL, and ST_name().

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UINT32 Get_PU_arg_area_size

(

PU_IDX

)

Definition at line 803 of file data_layout.cxx.

References arg_area_size_array, Init_PU_arg_area_size_array(), Is_True, KIND_FUNCTION, max_arg_area_size_index, TY_id(), and TY_kind().

Referenced by Calc_Formal_Area().

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PREG_NUM Get_ST_formal_preg_num

(

const ST *

base

)

Definition at line 409 of file data_layout.cxx.

References formal_info_array, max_formal_info_index, NULL, and formal_info::preg.

Referenced by Formal_Sym(), and ST_has_formal_preg_num().

ST* Get_ST_formal_ref_base

(

const ST *

sym

)

Definition at line 375 of file data_layout.cxx.

References formal_info::base, formal_info_array, max_formal_info_index, NULL, SCLASS_FORMAL_REF, and ST_sclass().

Referenced by Formal_Sym().

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ST* Get_Vararg_Symbol

(

PLOC

)

Definition at line 1318 of file data_layout.cxx.

References First_Int_Preg_Param_Offset, Is_True, MAX_NUMBER_OF_REGISTER_PARAMETERS, PLOC_reg, and vararg_symbols.

void Initialize_Stack_Frame

(

WN *

PU_tree

)

Definition at line 1754 of file data_layout.cxx.

References Add_Object_To_Frame_Segment(), Allocate_All_Formals(), Calc_Formal_Area(), Calc_Local_Area(), Choose_Stack_Model(), CLASS_VAR, Create_Base_Reg(), Current_PU_Actual_Size, Current_PU_Stack_Model, DECREMENT, DEFAULT_TEMP_SPACE_BYTES, EXPORT_LOCAL, FALSE, Find_Special_Return_Address_Symbol(), FmtAssert, FP_Sym, fprintf(), Frame_Has_Calls, Get_Current_PU(), Get_Trace(), INCREMENT, Init_Formal_Segments(), Init_PU_arg_area_size_array(), Init_Segment_Descriptors(), Max_Arg_Area_Bytes(), MTYPE_byte_size, MTYPE_To_TY, New_ST(), OPC_FUNC_ENTRY, Pointer_Mtype, PU_has_return_address(), PUSH_FRAME_POINTER_ON_STACK, PUSH_RETURN_ADDRESS_ON_STACK, ROUNDUP, Save_Str(), SCLASS_AUTO, Set_Error_Phase(), Set_ST_base(), Set_ST_ofst(), SFSEG_UPFORMAL, SP_Sym, Spill_Int_Mtype, ST_asm_function_st(), ST_class(), ST_export(), ST_Init(), ST_name(), ST_sclass(), stack_direction, TFile, TP_DATALAYOUT, Trace_Frame, TRUE, WN_opcode(), and WN_st().

Referenced by Do_WOPT_and_CG_with_Regions().

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BOOL Is_Allocated

(

ST *

st

)

Definition at line 218 of file data_layout.cxx.

References Base_Symbol_And_Offset(), CLASS_BLOCK, Is_root_base, SCLASS_FORMAL, ST_class(), ST_sclass(), and TRUE.

Referenced by Allocate_Object(), and Formal_Sym().

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void Pad_Global_Arrays

(

)

Definition at line 2643 of file data_layout.cxx.

References For_all(), GLOBAL_SYMTAB, and St_Table.

Referenced by Phase_Init().

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void Reset_UPFORMAL_Segment

(

void

)

Definition at line 1214 of file data_layout.cxx.

References block, INCREMENT, Initialize_Frame_Segment(), SCLASS_AUTO, Set_ST_ofst(), Set_STB_size(), SF_Block, and SFSEG_UPFORMAL.

Referenced by Allocate_All_Formals().

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void Set_PU_arg_area_size	(	PU_IDX	,
		UINT32	size
	)

Definition at line 816 of file data_layout.cxx.

References arg_area_size_array, Init_PU_arg_area_size_array(), Is_True, KIND_FUNCTION, max_arg_area_size_index, size, TY_id(), and TY_kind().

Referenced by Calc_Actual_Area(), and Calc_Formal_Area().

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void Set_ST_formal_preg_num	(	const ST *	base,
		PREG_NUM	p
	)

Definition at line 422 of file data_layout.cxx.

References FALSE, formal_info_array, Is_True, max_formal_info_index, and formal_info::preg.

Referenced by Formal_Sym().

void Set_ST_formal_ref_base	(	const ST *	sym,
		ST *	base
	)

Definition at line 390 of file data_layout.cxx.

References formal_info::base, formal_info_array, formal_info::level, max_formal_info_index, NULL, Realloc_ST_formal_info(), ST_level(), and formal_info::sym.

Referenced by Formal_Sym().

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BOOL ST_has_formal_preg_num

(

const ST *const

st

)

[inline]

Definition at line 156 of file data_layout.h.

References Get_ST_formal_preg_num(), SCLASS_FORMAL, and ST_sclass().

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BOOL ST_on_stack

(

ST *

)

Definition at line 247 of file data_layout.cxx.

References Base_Symbol(), FALSE, FP_Sym, SCLASS_AUTO, SCLASS_FORMAL, SP_Sym, ST_sclass(), and TRUE.

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BOOL ST_pu_defined

(

ST *

)

Definition at line 276 of file data_layout.cxx.

References CLASS_CONST, CLASS_VAR, FALSE, SCLASS_AUTO, SCLASS_DGLOBAL, SCLASS_FORMAL, SCLASS_FSTATIC, SCLASS_PSTATIC, ST_class(), ST_sclass(), and TRUE.

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INT32 Stack_Alignment

(

void

)

Definition at line 496 of file data_layout.cxx.

References stack_align.

Referenced by Adjusted_Alignment().

STACK_DIR Stack_Direction

(

void

)

Definition at line 502 of file data_layout.cxx.

References stack_direction.

INT Stack_Offset_Adjustment_For_PU

(

void

)

Definition at line 2650 of file data_layout.cxx.

References Frame_Has_Calls, and Stack_Offset_Adjustment.

BOOL Uses_Small_Offset	(	ST *	st,
		WN_OFFSET	wn_ofst
	)

Definition at line 2543 of file data_layout.cxx.

References CLASS_BLOCK, CLASS_CONST, CLASS_VAR, Current_PU_Stack_Model, FALSE, Large_Object_Bytes, SCLASS_AUTO, SCLASS_FORMAL, SMODEL_DYNAMIC, SMODEL_LARGE, SMODEL_SMALL, ST_class(), ST_gprel(), ST_sclass(), ST_size(), and TRUE.

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---

Variable Documentation

INT32 Current_PU_Actual_Size

Definition at line 94 of file data_layout.cxx.

Referenced by Calculate_Stack_Frame_Sizes(), Check_Actual_Stack_Size(), and Initialize_Stack_Frame().

STACK_MODEL Current_PU_Stack_Model

Definition at line 95 of file data_layout.cxx.

Referenced by Allocate_Local_Spill_Sym(), Allocate_Space(), Bind_Stack_Frame(), Finalize_Stack_Frame(), Initialize_Stack_Frame(), Merge_Fixed_Stack_Frame(), Process_Stack_Variable(), and Uses_Small_Offset().

ST* FP_Sym

Definition at line 92 of file data_layout.cxx.

Referenced by Allocate_Space(), Calculate_Stack_Frame_Sizes(), Finalize_Stack_Frame(), Initialize_Stack_Frame(), Process_Stack_Variable(), and ST_on_stack().

ST* Local_Spill_Sym

Definition at line 93 of file data_layout.cxx.

Referenced by Allocate_Local_Spill_Sym().

ST* SP_Sym

Definition at line 91 of file data_layout.cxx.

Referenced by Allocate_Space(), Calculate_Stack_Frame_Sizes(), Finalize_Stack_Frame(), Initialize_Stack_Frame(), Process_Stack_Variable(), and ST_on_stack().