gcc-8.3/gcc/target_hard_regs
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開始行:
*参照元 [#c12b6486]
#backlinks
*説明 [#ed610ab5]
-パス: [[gcc-8.3/gcc/hard-reg-set.h]]
-FIXME: これは何?
--説明
**参考 [#i742a50e]
*実装 [#bff902d1]
struct target_hard_regs {
void finalize ();
/* The set of registers that actually exist on the cur...
HARD_REG_SET x_accessible_reg_set;
/* The set of registers that should be considered to b...
operands. It is a subset of x_accessible_reg_set. ...
HARD_REG_SET x_operand_reg_set;
-
--[[gcc-8.3/gcc/HARD_REG_SET]]
/* Indexed by hard register number, contains 1 for reg...
that are fixed use (stack pointer, pc, frame pointe...
These are the registers that cannot be used to allo...
a pseudo reg whose life does not cross calls. */
char x_fixed_regs[FIRST_PSEUDO_REGISTER];
/* The same info as a HARD_REG_SET. */
HARD_REG_SET x_fixed_reg_set;
/* Indexed by hard register number, contains 1 for reg...
that are fixed use or are clobbered by function cal...
These are the registers that cannot be used to allo...
a pseudo reg whose life crosses calls. */
char x_call_used_regs[FIRST_PSEUDO_REGISTER];
char x_call_really_used_regs[FIRST_PSEUDO_REGISTER];
/* The same info as a HARD_REG_SET. */
HARD_REG_SET x_call_used_reg_set;
/* Contains registers that are fixed use -- i.e. in fi...
a function value return register or TARGET_STRUCT_V...
STATIC_CHAIN_REGNUM. These are the registers that ...
across calls even if we are willing to save and res...
HARD_REG_SET x_call_fixed_reg_set;
/* Contains registers that are fixed use -- i.e. in fi...
only if they are not merely part of that set becaus...
regs. Global regs that are not otherwise fixed can...
in register allocation. */
HARD_REG_SET x_fixed_nonglobal_reg_set;
/* Contains 1 for registers that are set or clobbered ...
/* ??? Ideally, this would be just call_used_regs plus...
for someone's bright idea to have call_used_regs st...
fixed_regs. Which leaves us guessing as to the set...
that are actually preserved. We know for sure that...
with the local stack frame are safe, but scant othe...
HARD_REG_SET x_regs_invalidated_by_call;
/* Call used hard registers which can not be saved bec...
insn for this. */
HARD_REG_SET x_no_caller_save_reg_set;
/* Table of register numbers in the order in which to ...
int x_reg_alloc_order[FIRST_PSEUDO_REGISTER];
/* The inverse of reg_alloc_order. */
int x_inv_reg_alloc_order[FIRST_PSEUDO_REGISTER];
/* For each reg class, a HARD_REG_SET saying which reg...
HARD_REG_SET x_reg_class_contents[N_REG_CLASSES];
/* For each reg class, a boolean saying whether the cl...
fixed registers. */
bool x_class_only_fixed_regs[N_REG_CLASSES];
/* For each reg class, number of regs it contains. */
unsigned int x_reg_class_size[N_REG_CLASSES];
/* For each reg class, table listing all the classes c...
enum reg_class x_reg_class_subclasses[N_REG_CLASSES][N...
/* For each pair of reg classes,
a largest reg class contained in their union. */
enum reg_class x_reg_class_subunion[N_REG_CLASSES][N_R...
/* For each pair of reg classes,
the smallest reg class that contains their union. */
enum reg_class x_reg_class_superunion[N_REG_CLASSES][N...
/* Vector indexed by hardware reg giving its name. */
const char *x_reg_names[FIRST_PSEUDO_REGISTER];
/* Records which registers can form a particular subre...
being identified by its outer mode, inner mode and ...
hash_table <simplifiable_subregs_hasher> *x_simplifiab...
};
-
--[[gcc-8.3/gcc/reg_class]]
--[[gcc-8.3/gcc/hash_table]]
--[[gcc-8.3/gcc/simplifiable_subregs_hasher]]
*コメント [#dff01ba7]
終了行:
*参照元 [#c12b6486]
#backlinks
*説明 [#ed610ab5]
-パス: [[gcc-8.3/gcc/hard-reg-set.h]]
-FIXME: これは何?
--説明
**参考 [#i742a50e]
*実装 [#bff902d1]
struct target_hard_regs {
void finalize ();
/* The set of registers that actually exist on the cur...
HARD_REG_SET x_accessible_reg_set;
/* The set of registers that should be considered to b...
operands. It is a subset of x_accessible_reg_set. ...
HARD_REG_SET x_operand_reg_set;
-
--[[gcc-8.3/gcc/HARD_REG_SET]]
/* Indexed by hard register number, contains 1 for reg...
that are fixed use (stack pointer, pc, frame pointe...
These are the registers that cannot be used to allo...
a pseudo reg whose life does not cross calls. */
char x_fixed_regs[FIRST_PSEUDO_REGISTER];
/* The same info as a HARD_REG_SET. */
HARD_REG_SET x_fixed_reg_set;
/* Indexed by hard register number, contains 1 for reg...
that are fixed use or are clobbered by function cal...
These are the registers that cannot be used to allo...
a pseudo reg whose life crosses calls. */
char x_call_used_regs[FIRST_PSEUDO_REGISTER];
char x_call_really_used_regs[FIRST_PSEUDO_REGISTER];
/* The same info as a HARD_REG_SET. */
HARD_REG_SET x_call_used_reg_set;
/* Contains registers that are fixed use -- i.e. in fi...
a function value return register or TARGET_STRUCT_V...
STATIC_CHAIN_REGNUM. These are the registers that ...
across calls even if we are willing to save and res...
HARD_REG_SET x_call_fixed_reg_set;
/* Contains registers that are fixed use -- i.e. in fi...
only if they are not merely part of that set becaus...
regs. Global regs that are not otherwise fixed can...
in register allocation. */
HARD_REG_SET x_fixed_nonglobal_reg_set;
/* Contains 1 for registers that are set or clobbered ...
/* ??? Ideally, this would be just call_used_regs plus...
for someone's bright idea to have call_used_regs st...
fixed_regs. Which leaves us guessing as to the set...
that are actually preserved. We know for sure that...
with the local stack frame are safe, but scant othe...
HARD_REG_SET x_regs_invalidated_by_call;
/* Call used hard registers which can not be saved bec...
insn for this. */
HARD_REG_SET x_no_caller_save_reg_set;
/* Table of register numbers in the order in which to ...
int x_reg_alloc_order[FIRST_PSEUDO_REGISTER];
/* The inverse of reg_alloc_order. */
int x_inv_reg_alloc_order[FIRST_PSEUDO_REGISTER];
/* For each reg class, a HARD_REG_SET saying which reg...
HARD_REG_SET x_reg_class_contents[N_REG_CLASSES];
/* For each reg class, a boolean saying whether the cl...
fixed registers. */
bool x_class_only_fixed_regs[N_REG_CLASSES];
/* For each reg class, number of regs it contains. */
unsigned int x_reg_class_size[N_REG_CLASSES];
/* For each reg class, table listing all the classes c...
enum reg_class x_reg_class_subclasses[N_REG_CLASSES][N...
/* For each pair of reg classes,
a largest reg class contained in their union. */
enum reg_class x_reg_class_subunion[N_REG_CLASSES][N_R...
/* For each pair of reg classes,
the smallest reg class that contains their union. */
enum reg_class x_reg_class_superunion[N_REG_CLASSES][N...
/* Vector indexed by hardware reg giving its name. */
const char *x_reg_names[FIRST_PSEUDO_REGISTER];
/* Records which registers can form a particular subre...
being identified by its outer mode, inner mode and ...
hash_table <simplifiable_subregs_hasher> *x_simplifiab...
};
-
--[[gcc-8.3/gcc/reg_class]]
--[[gcc-8.3/gcc/hash_table]]
--[[gcc-8.3/gcc/simplifiable_subregs_hasher]]
*コメント [#dff01ba7]
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