calls.c (expand_call): Pass to REG_PARM_STACK_SPACE the type of the function...
2008-11-26 Kai Tietz <kai.tietz@onevision.com>
PR/38227
* calls.c (expand_call): Pass to REG_PARM_STACK_SPACE
the type of the function, when there is no FUNCTION_DECL available.
OUTGOING_REG_PARM_STACK_SPACE pass fntype, when no fndecl is available.
(compute_argument_block_size): Add fntype argument.
OUTGOING_REG_PARM_STACK_SPACE pass fntype, when no fndecl is available.
(emit_library_call_value_1): Likewise.
OUTGOING_REG_PARM_STACK_SPACE pass fntype, when no fndecl is available.
* config/i386/i386.c (ix86_reg_parm_stack_space): Handle function types.
* doc/tm.texi (REG_PARM_STACK_SPACE): Adjust documentation.
From-SVN: r142215
This commit is contained in:
Kai Tietz
parent
89d926785d
commit
5d059ed962
24
gcc/calls.c
24
gcc/calls.c
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@ -132,7 +132,7 @@ static void store_unaligned_arguments_into_pseudos (struct arg_data *, int);
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static int finalize_must_preallocate (int, int, struct arg_data *,
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struct args_size *);
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static void precompute_arguments (int, struct arg_data *);
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static int compute_argument_block_size (int, struct args_size *, tree, int);
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static int compute_argument_block_size (int, struct args_size *, tree, tree, int);
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static void initialize_argument_information (int, struct arg_data *,
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struct args_size *, int,
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tree, tree,
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@ -1205,6 +1205,7 @@ static int
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compute_argument_block_size (int reg_parm_stack_space,
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struct args_size *args_size,
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tree fndecl ATTRIBUTE_UNUSED,
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tree fntype ATTRIBUTE_UNUSED,
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int preferred_stack_boundary ATTRIBUTE_UNUSED)
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{
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int unadjusted_args_size = args_size->constant;
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@ -1242,7 +1243,7 @@ compute_argument_block_size (int reg_parm_stack_space,
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/* The area corresponding to register parameters is not to count in
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the size of the block we need. So make the adjustment. */
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl))))
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl))))
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args_size->var
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= size_binop (MINUS_EXPR, args_size->var,
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ssize_int (reg_parm_stack_space));
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@ -1263,7 +1264,7 @@ compute_argument_block_size (int reg_parm_stack_space,
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args_size->constant = MAX (args_size->constant,
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reg_parm_stack_space);
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl))))
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl))))
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args_size->constant -= reg_parm_stack_space;
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}
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return unadjusted_args_size;
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@ -2077,10 +2078,10 @@ expand_call (tree exp, rtx target, int ignore)
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}
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#ifdef REG_PARM_STACK_SPACE
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reg_parm_stack_space = REG_PARM_STACK_SPACE (fndecl);
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reg_parm_stack_space = REG_PARM_STACK_SPACE (!fndecl ? fntype : fndecl);
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#endif
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl)))
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl)))
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&& reg_parm_stack_space > 0 && PUSH_ARGS)
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must_preallocate = 1;
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@ -2404,7 +2405,7 @@ expand_call (tree exp, rtx target, int ignore)
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unadjusted_args_size
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= compute_argument_block_size (reg_parm_stack_space,
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&adjusted_args_size,
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fndecl,
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fndecl, fntype,
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(pass == 0 ? 0
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: preferred_stack_boundary));
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@ -2480,7 +2481,7 @@ expand_call (tree exp, rtx target, int ignore)
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/* Since we will be writing into the entire argument area,
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the map must be allocated for its entire size, not just
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the part that is the responsibility of the caller. */
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl))))
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl))))
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needed += reg_parm_stack_space;
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#ifdef ARGS_GROW_DOWNWARD
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@ -2579,7 +2580,7 @@ expand_call (tree exp, rtx target, int ignore)
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{
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rtx push_size
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= GEN_INT (adjusted_args_size.constant
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+ (OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL
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+ (OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype
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: TREE_TYPE (fndecl))) ? 0
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: reg_parm_stack_space));
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if (old_stack_level == 0)
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@ -2750,7 +2751,7 @@ expand_call (tree exp, rtx target, int ignore)
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/* If register arguments require space on the stack and stack space
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was not preallocated, allocate stack space here for arguments
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passed in registers. */
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if (OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl)))
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if (OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl)))
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&& !ACCUMULATE_OUTGOING_ARGS
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&& must_preallocate == 0 && reg_parm_stack_space > 0)
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anti_adjust_stack (GEN_INT (reg_parm_stack_space));
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@ -3230,6 +3231,7 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
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/* Todo, choose the correct decl type of orgfun. Sadly this information
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isn't present here, so we default to native calling abi here. */
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tree fndecl ATTRIBUTE_UNUSED = NULL_TREE; /* library calls default to host calling abi ? */
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tree fntype ATTRIBUTE_UNUSED = NULL_TREE; /* library calls default to host calling abi ? */
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int inc;
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int count;
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rtx argblock = 0;
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@ -3487,7 +3489,7 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
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args_size.constant = MAX (args_size.constant,
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reg_parm_stack_space);
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl))))
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl))))
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args_size.constant -= reg_parm_stack_space;
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if (args_size.constant > crtl->outgoing_args_size)
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@ -3512,7 +3514,7 @@ emit_library_call_value_1 (int retval, rtx orgfun, rtx value,
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/* Since we will be writing into the entire argument area, the
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map must be allocated for its entire size, not just the part that
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is the responsibility of the caller. */
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? NULL_TREE : TREE_TYPE (fndecl))))
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if (! OUTGOING_REG_PARM_STACK_SPACE ((!fndecl ? fntype : TREE_TYPE (fndecl))))
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needed += reg_parm_stack_space;
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#ifdef ARGS_GROW_DOWNWARD
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@ -4552,9 +4552,11 @@ ix86_reg_parm_stack_space (const_tree fndecl)
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/* For libcalls it is possible that there is no fndecl at hand.
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Therefore assume for this case the default abi of the target. */
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if (!fndecl)
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call_abi = DEFAULT_ABI;
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else
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call_abi = (cfun ? cfun->machine->call_abi : DEFAULT_ABI);
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else if (TREE_CODE (fndecl) == FUNCTION_DECL)
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call_abi = ix86_function_abi (fndecl);
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else
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call_abi = ix86_function_type_abi (fndecl);
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if (call_abi == 1)
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return 32;
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return 0;
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@ -3817,6 +3817,8 @@ registers.
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The value of this macro is the size, in bytes, of the area reserved for
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arguments passed in registers for the function represented by @var{fndecl},
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which can be zero if GCC is calling a library function.
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The argument @var{fndecl} can be the FUNCTION_DECL, or the type itself
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of the function.
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This space can be allocated by the caller, or be a part of the
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machine-dependent stack frame: @code{OUTGOING_REG_PARM_STACK_SPACE} says
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