builtins.def (BUILT_IN_ARGS_INFO): Remove.
* builtins.def (BUILT_IN_ARGS_INFO): Remove. * ipa-pure-const.c (special_builtlin_state): Remove BUILT_IN_ARGS_INFO case. * tree-stdarg.c (execute_optimize_stdarg): Likewise. * builtins.c (expand_builtin): Likewise. (expand_builtin_args_info): Remove. * doc/tm.texi (__builtin_args_info): Remove. (__builtin_next_arg): Adjust to not refer to __builtin_args_info. * doc/tm.text.in: Likewise. From-SVN: r162463
This commit is contained in:
Nathan Froyd
Nathan Froyd
parent
3d03ead0b8
commit
c59a0a1d19
7 changed files with 14 additions and 91 deletions
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@ -1,3 +1,15 @@
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2010-07-23 Nathan Froyd <froydnj@codesourcery.com>
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* builtins.def (BUILT_IN_ARGS_INFO): Remove.
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* ipa-pure-const.c (special_builtlin_state): Remove
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BUILT_IN_ARGS_INFO case.
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* tree-stdarg.c (execute_optimize_stdarg): Likewise.
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* builtins.c (expand_builtin): Likewise.
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(expand_builtin_args_info): Remove.
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* doc/tm.texi (__builtin_args_info): Remove.
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(__builtin_next_arg): Adjust to not refer to __builtin_args_info.
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* doc/tm.text.in: Likewise.
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2010-07-23 Richard Guenther <rguenther@suse.de>
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* lto-symtab.c (lto_symtab_merge): Use gtc_mode enum
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@ -111,7 +111,6 @@ static rtx expand_builtin_sincos (tree);
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static rtx expand_builtin_cexpi (tree, rtx, rtx);
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static rtx expand_builtin_int_roundingfn (tree, rtx);
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static rtx expand_builtin_int_roundingfn_2 (tree, rtx);
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static rtx expand_builtin_args_info (tree);
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static rtx expand_builtin_next_arg (void);
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static rtx expand_builtin_va_start (tree);
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static rtx expand_builtin_va_end (tree);
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@ -4398,38 +4397,6 @@ expand_builtin_saveregs (void)
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return val;
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}
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/* __builtin_args_info (N) returns word N of the arg space info
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for the current function. The number and meanings of words
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is controlled by the definition of CUMULATIVE_ARGS. */
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static rtx
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expand_builtin_args_info (tree exp)
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{
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int nwords = sizeof (CUMULATIVE_ARGS) / sizeof (int);
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int *word_ptr = (int *) &crtl->args.info;
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gcc_assert (sizeof (CUMULATIVE_ARGS) % sizeof (int) == 0);
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if (call_expr_nargs (exp) != 0)
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{
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if (!host_integerp (CALL_EXPR_ARG (exp, 0), 0))
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error ("argument of %<__builtin_args_info%> must be constant");
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else
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{
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HOST_WIDE_INT wordnum = tree_low_cst (CALL_EXPR_ARG (exp, 0), 0);
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if (wordnum < 0 || wordnum >= nwords)
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error ("argument of %<__builtin_args_info%> out of range");
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else
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return GEN_INT (word_ptr[wordnum]);
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}
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}
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else
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error ("missing argument in %<__builtin_args_info%>");
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return const0_rtx;
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}
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/* Expand a call to __builtin_next_arg. */
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static rtx
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@ -5925,9 +5892,6 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
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case BUILT_IN_SAVEREGS:
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return expand_builtin_saveregs ();
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case BUILT_IN_ARGS_INFO:
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return expand_builtin_args_info (exp);
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case BUILT_IN_VA_ARG_PACK:
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/* All valid uses of __builtin_va_arg_pack () are removed during
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inlining. */
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@ -606,7 +606,6 @@ DEF_GCC_BUILTIN (BUILT_IN_AGGREGATE_INCOMING_ADDRESS, "aggregate_incoming
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DEF_EXT_LIB_BUILTIN (BUILT_IN_ALLOCA, "alloca", BT_FN_PTR_SIZE, ATTR_MALLOC_NOTHROW_LIST)
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DEF_GCC_BUILTIN (BUILT_IN_APPLY, "apply", BT_FN_PTR_PTR_FN_VOID_VAR_PTR_SIZE, ATTR_NULL)
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DEF_GCC_BUILTIN (BUILT_IN_APPLY_ARGS, "apply_args", BT_FN_PTR_VAR, ATTR_NULL)
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DEF_GCC_BUILTIN (BUILT_IN_ARGS_INFO, "args_info", BT_FN_INT_INT, ATTR_NULL)
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DEF_GCC_BUILTIN (BUILT_IN_BSWAP32, "bswap32", BT_FN_UINT32_UINT32, ATTR_CONST_NOTHROW_LIST)
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DEF_GCC_BUILTIN (BUILT_IN_BSWAP64, "bswap64", BT_FN_UINT64_UINT64, ATTR_CONST_NOTHROW_LIST)
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DEF_EXT_LIB_BUILTIN (BUILT_IN_CLEAR_CACHE, "__clear_cache", BT_FN_VOID_PTR_PTR, ATTR_NOTHROW_LIST)
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@ -5007,33 +5007,8 @@ to use them for its own purposes.
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@c 10feb93
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@end defmac
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@defmac __builtin_args_info (@var{category})
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Use this built-in function to find the first anonymous arguments in
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registers.
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In general, a machine may have several categories of registers used for
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arguments, each for a particular category of data types. (For example,
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on some machines, floating-point registers are used for floating-point
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arguments while other arguments are passed in the general registers.)
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To make non-varargs functions use the proper calling convention, you
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have defined the @code{CUMULATIVE_ARGS} data type to record how many
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registers in each category have been used so far
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@code{__builtin_args_info} accesses the same data structure of type
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@code{CUMULATIVE_ARGS} after the ordinary argument layout is finished
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with it, with @var{category} specifying which word to access. Thus, the
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value indicates the first unused register in a given category.
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Normally, you would use @code{__builtin_args_info} in the implementation
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of @code{va_start}, accessing each category just once and storing the
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value in the @code{va_list} object. This is because @code{va_list} will
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have to update the values, and there is no way to alter the
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values accessed by @code{__builtin_args_info}.
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@end defmac
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@defmac __builtin_next_arg (@var{lastarg})
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This is the equivalent of @code{__builtin_args_info}, for stack
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arguments. It returns the address of the first anonymous stack
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This builtin returns the address of the first anonymous stack
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argument, as type @code{void *}. If @code{ARGS_GROW_DOWNWARD}, it
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returns the address of the location above the first anonymous stack
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argument. Use it in @code{va_start} to initialize the pointer for
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@ -5007,33 +5007,8 @@ to use them for its own purposes.
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@c 10feb93
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@end defmac
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@defmac __builtin_args_info (@var{category})
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Use this built-in function to find the first anonymous arguments in
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registers.
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In general, a machine may have several categories of registers used for
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arguments, each for a particular category of data types. (For example,
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on some machines, floating-point registers are used for floating-point
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arguments while other arguments are passed in the general registers.)
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To make non-varargs functions use the proper calling convention, you
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have defined the @code{CUMULATIVE_ARGS} data type to record how many
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registers in each category have been used so far
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@code{__builtin_args_info} accesses the same data structure of type
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@code{CUMULATIVE_ARGS} after the ordinary argument layout is finished
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with it, with @var{category} specifying which word to access. Thus, the
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value indicates the first unused register in a given category.
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Normally, you would use @code{__builtin_args_info} in the implementation
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of @code{va_start}, accessing each category just once and storing the
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value in the @code{va_list} object. This is because @code{va_list} will
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have to update the values, and there is no way to alter the
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values accessed by @code{__builtin_args_info}.
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@end defmac
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@defmac __builtin_next_arg (@var{lastarg})
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This is the equivalent of @code{__builtin_args_info}, for stack
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arguments. It returns the address of the first anonymous stack
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This builtin returns the address of the first anonymous stack
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argument, as type @code{void *}. If @code{ARGS_GROW_DOWNWARD}, it
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returns the address of the location above the first anonymous stack
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argument. Use it in @code{va_start} to initialize the pointer for
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@ -446,7 +446,6 @@ special_builtlin_state (enum pure_const_state_e *state, bool *looping,
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case BUILT_IN_FRAME_ADDRESS:
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case BUILT_IN_APPLY:
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case BUILT_IN_APPLY_ARGS:
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case BUILT_IN_ARGS_INFO:
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*looping = false;
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*state = IPA_CONST;
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return true;
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@ -636,7 +636,6 @@ execute_optimize_stdarg (void)
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break;
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/* If old style builtins are used, don't optimize anything. */
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case BUILT_IN_SAVEREGS:
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case BUILT_IN_ARGS_INFO:
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case BUILT_IN_NEXT_ARG:
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va_list_escapes = true;
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continue;
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