function.h (struct function): Move all boolean valued fields to single bit fields at the end of the struct.
* function.h (struct function): Move all boolean valued fields
to single bit fields at the end of the struct.
From-SVN: r40911
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Richard Henderson
Richard Henderson
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@ -1,5 +1,8 @@
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2001-03-27 Richard Henderson <rth@redhat.com>
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* function.h (struct function): Move all boolean valued fields
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to single bit fields at the end of the struct.
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* bb-reorder.c, dwarf2out.c, except.c, except.h, flow.c,
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jump.c, toplev.c:
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Rename asynchronous_exceptions to flag_non_call_exceptions.
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172
gcc/function.h
172
gcc/function.h
@ -191,6 +191,7 @@ struct function
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/* Name of this function. */
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const char *name;
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/* Points to the FUNCTION_DECL of this function. */
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tree decl;
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@ -199,50 +200,6 @@ struct function
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May affect compilation of return insn or of function epilogue. */
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int pops_args;
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/* Nonzero if function being compiled needs to be given an address
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where the value should be stored. */
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int returns_struct;
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/* Nonzero if function being compiled needs to
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return the address of where it has put a structure value. */
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int returns_pcc_struct;
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/* Nonzero if the current function returns a pointer type. */
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int returns_pointer;
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/* Nonzero if function being compiled needs to be passed a static chain. */
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int needs_context;
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/* Nonzero if function being compiled can call setjmp. */
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int calls_setjmp;
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/* Nonzero if function being compiled can call longjmp. */
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int calls_longjmp;
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/* Nonzero if function being compiled can call alloca,
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either as a subroutine or builtin. */
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int calls_alloca;
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/* Nonzero if function being compiled receives nonlocal gotos
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from nested functions. */
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int has_nonlocal_label;
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/* Nonzero if function being compiled has nonlocal gotos to parent
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function. */
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int has_nonlocal_goto;
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/* Nonzero if function being compiled contains nested functions. */
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int contains_functions;
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/* Nonzero if the function being compiled issues a computed jump. */
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int has_computed_jump;
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/* Nonzero if the current function is a thunk (a lightweight function that
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just adjusts one of its arguments and forwards to another function), so
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we should try to cut corners where we can. */
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int is_thunk;
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/* If function's args have a fixed size, this is that size, in bytes.
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Otherwise, it is -1.
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May affect compilation of return insn or of function epilogue. */
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@ -261,14 +218,6 @@ struct function
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anonymous arg can be found, if there is one. */
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rtx arg_offset_rtx;
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/* Nonzero if current function uses varargs.h or equivalent.
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Zero for functions that use stdarg.h. */
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int varargs;
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/* Nonzero if current function uses stdarg.h or equivalent.
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Zero for functions that use varargs.h. */
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int stdarg;
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/* Quantities of various kinds of registers
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used for the current function's args. */
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CUMULATIVE_ARGS args_info;
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@ -286,35 +235,9 @@ struct function
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inline. */
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const char *cannot_inline;
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/* Nonzero if instrumentation calls for function entry and exit should be
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generated. */
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int instrument_entry_exit;
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/* Nonzero if memory access checking be enabled in the current function. */
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int check_memory_usage;
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/* Nonzero if stack limit checking should be enabled in the current
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function. */
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int limit_stack;
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/* Number of function calls seen so far in current function. */
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int x_function_call_count;
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/* Nonzero if this function is being processed in function-at-a-time
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mode. In other words, if all tree structure for this function,
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including the BLOCK tree, is created before RTL generation
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commences. */
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int x_whole_function_mode_p;
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/* Nonzero if the back-end should not keep track of expressions that
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determine the size of variable-sized objects. Normally, such
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expressions are saved away, and then expanded when the next
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function is started. For example, if a parameter has a
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variable-sized type, then the size of the parameter is computed
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when the function body is entered. However, some front-ends do
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not desire this behavior. */
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int x_dont_save_pending_sizes_p;
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/* List (chain of TREE_LIST) of LABEL_DECLs for all nonlocal labels
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(labels to which there can be nonlocal gotos from nested functions)
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in this function. */
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@ -442,13 +365,8 @@ struct function
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/* Highest label number in current function. */
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int inl_max_label_num;
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/* Nonzero if the current function uses the constant pool. */
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int uses_const_pool;
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/* For md files. */
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/* Nonzero if the current function uses pic_offset_table_rtx. */
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int uses_pic_offset_table;
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/* tm.h can use this to store whatever it likes. */
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struct machine_function *machine;
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/* The largest alignment of slot allocated on the stack. */
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@ -464,6 +382,94 @@ struct function
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/* If some insns can be deferred to the delay slots of the epilogue, the
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delay list for them is recorded here. */
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rtx epilogue_delay_list;
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/* Collected bit flags. */
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/* Nonzero if function being compiled needs to be given an address
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where the value should be stored. */
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unsigned int returns_struct : 1;
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/* Nonzero if function being compiled needs to
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return the address of where it has put a structure value. */
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unsigned int returns_pcc_struct : 1;
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/* Nonzero if the current function returns a pointer type. */
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unsigned int returns_pointer : 1;
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/* Nonzero if function being compiled needs to be passed a static chain. */
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unsigned int needs_context : 1;
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/* Nonzero if function being compiled can call setjmp. */
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unsigned int calls_setjmp : 1;
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/* Nonzero if function being compiled can call longjmp. */
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unsigned int calls_longjmp : 1;
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/* Nonzero if function being compiled can call alloca,
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either as a subroutine or builtin. */
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unsigned int calls_alloca : 1;
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/* Nonzero if function being compiled receives nonlocal gotos
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from nested functions. */
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unsigned int has_nonlocal_label : 1;
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/* Nonzero if function being compiled has nonlocal gotos to parent
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function. */
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unsigned int has_nonlocal_goto : 1;
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/* Nonzero if function being compiled contains nested functions. */
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unsigned int contains_functions : 1;
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/* Nonzero if the function being compiled issues a computed jump. */
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unsigned int has_computed_jump : 1;
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/* Nonzero if the current function is a thunk (a lightweight function that
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just adjusts one of its arguments and forwards to another function), so
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we should try to cut corners where we can. */
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unsigned int is_thunk : 1;
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/* Nonzero if instrumentation calls for function entry and exit should be
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generated. */
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unsigned int instrument_entry_exit : 1;
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/* Nonzero if memory access checking be enabled in the current function. */
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unsigned int check_memory_usage : 1;
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/* Nonzero if stack limit checking should be enabled in the current
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function. */
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unsigned int limit_stack : 1;
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/* Nonzero if current function uses varargs.h or equivalent.
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Zero for functions that use stdarg.h. */
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unsigned int varargs : 1;
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/* Nonzero if current function uses stdarg.h or equivalent.
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Zero for functions that use varargs.h. */
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unsigned int stdarg : 1;
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/* Nonzero if this function is being processed in function-at-a-time
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mode. In other words, if all tree structure for this function,
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including the BLOCK tree, is created before RTL generation
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commences. */
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unsigned int x_whole_function_mode_p : 1;
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/* Nonzero if the back-end should not keep track of expressions that
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determine the size of variable-sized objects. Normally, such
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expressions are saved away, and then expanded when the next
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function is started. For example, if a parameter has a
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variable-sized type, then the size of the parameter is computed
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when the function body is entered. However, some front-ends do
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not desire this behavior. */
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unsigned int x_dont_save_pending_sizes_p : 1;
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/* Nonzero if the current function uses the constant pool. */
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unsigned int uses_const_pool : 1;
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/* Nonzero if the current function uses pic_offset_table_rtx. */
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unsigned int uses_pic_offset_table : 1;
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/* Nonzero if the current function needs an lsda for exception handling. */
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unsigned int uses_eh_lsda : 1;
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};
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/* The function currently being compiled. */
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