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(emit_library_call...

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(emit_library_call, emit_library_call_value): Don't pass an identifier
node as function type for library functions, but rather build a
function type that has a return type with the correct mode.

From-SVN: r13275
This commit is contained in:
Richard Kenner 1996-12-11 08:58:10 -05:00
parent 6d101824da
commit 334c4f0f01
1 changed files with 16 additions and 6 deletions
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22
gcc/calls.c
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@ -304,9 +304,11 @@ prepare_call_address (funexp, fndecl, call_fusage, reg_parm_seen)
FNDECL is the declaration node of the function. This is given to the
macro RETURN_POPS_ARGS to determine whether this function pops its own args.
FUNTYPE is the data type of the function, or, for a library call,
the identifier for the name of the call. This is given to the
macro RETURN_POPS_ARGS to determine whether this function pops its own args.
FUNTYPE is the data type of the function. This is given to the macro
RETURN_POPS_ARGS to determine whether this function pops its own args.
We used to allow an identifier for library functions, but that doesn't
work when the return type is an aggregate type and the calling convention
says that the pointer to this aggregate is to be popped by the callee.
STACK_SIZE is the number of bytes of arguments on the stack,
rounded up to STACK_BOUNDARY; zero if the size is variable.
@ -2496,9 +2498,15 @@ emit_library_call VPROTO((rtx orgfun, int no_queue, enum machine_mode outmode,
/* We pass the old value of inhibit_defer_pop + 1 to emit_call_1, which
will set inhibit_defer_pop to that value. */
/* The return type is needed to decide how many bytes the function pops.
Signedness plays no role in that, so for simplicity, we pretend it's
always signed. We also assume that the list of arguments passed has
no impact, so we pretend it is unknown. */
emit_call_1 (fun,
get_identifier (XSTR (orgfun, 0)),
get_identifier (XSTR (orgfun, 0)), args_size.constant, 0,
build_function_type (type_for_mode (outmode, 0), NULL_TREE),
args_size.constant, 0,
FUNCTION_ARG (args_so_far, VOIDmode, void_type_node, 1),
outmode != VOIDmode ? hard_libcall_value (outmode) : NULL_RTX,
old_inhibit_defer_pop + 1, call_fusage, no_queue);
@ -2856,11 +2864,13 @@ emit_library_call_value VPROTO((rtx orgfun, rtx value, int no_queue,
/* We pass the old value of inhibit_defer_pop + 1 to emit_call_1, which
will set inhibit_defer_pop to that value. */
/* See the comment in emit_library_call about the function type we build
and pass here. */
emit_call_1 (fun,
get_identifier (XSTR (orgfun, 0)),
get_identifier (XSTR (orgfun, 0)), args_size.constant,
struct_value_size,
build_function_type (type_for_mode (outmode, 0), NULL_TREE),
args_size.constant, struct_value_size,
FUNCTION_ARG (args_so_far, VOIDmode, void_type_node, 1),
(outmode != VOIDmode && mem_value == 0
? hard_libcall_value (outmode) : NULL_RTX),