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(expand_call): Do not reverse args in "equal from" field. 

(emit_library_call_value_1): Emit_libcall_block for const and pure
	function.

From-SVN: r33109
This commit is contained in:
Jan Hubicka 2000-04-12 15:23:02 +00:00 committed by Jan Hubicka
parent 894a51411a
commit 5591ee6fee
2 changed files with 50 additions and 13 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
Wed Apr 12 17:20:41 MET DST 2000 Jan Hubicka <jh@suse.cz>
(expand_call): Do not reverse args in "equal from" field.
(emit_library_call_value_1): Emit_libcall_block for const and pure
function.
Wed Apr 12 16:00:25 2000 J"orn Rennecke <amylaar@cygnus.co.uk>
* reload1.c (reload_combine): Don't enable optimization for fixed

57
gcc/calls.c
View File

@ -2833,12 +2833,8 @@ expand_call (exp, target, ignore)
/* Construct an "equal form" for the value which mentions all the
arguments in order as well as the function name. */
if (PUSH_ARGS_REVERSED)
for (i = 0; i < num_actuals; i++)
note = gen_rtx_EXPR_LIST (VOIDmode, args[i].initial_value, note);
else
for (i = num_actuals - 1; i >= 0; i--)
note = gen_rtx_EXPR_LIST (VOIDmode, args[i].initial_value, note);
for (i = 0; i < num_actuals; i++)
note = gen_rtx_EXPR_LIST (VOIDmode, args[i].initial_value, note);
note = gen_rtx_EXPR_LIST (VOIDmode, funexp, note);
insns = get_insns ();
@ -3201,6 +3197,7 @@ emit_library_call_value_1 (retval, orgfun, value, no_queue, outmode, nargs, p)
int old_inhibit_defer_pop = inhibit_defer_pop;
rtx call_fusage = 0;
rtx mem_value = 0;
rtx valreg;
int pcc_struct_value = 0;
int struct_value_size = 0;
int flags = 0;
@ -3283,6 +3280,11 @@ emit_library_call_value_1 (retval, orgfun, value, no_queue, outmode, nargs, p)
count = 0;
/* Now we are about to start emitting insns that can be deleted
if a libcall is deleted. */
if (flags & ECF_CONST)
start_sequence ();
push_temp_slots ();
/* If there's a structure value address to be passed,
@ -3667,12 +3669,6 @@ emit_library_call_value_1 (retval, orgfun, value, no_queue, outmode, nargs, p)
NO_DEFER_POP;
}
#if 0
/* For version 1.37, try deleting this entirely. */
if (! no_queue)
emit_queue ();
#endif
/* Any regs containing parms remain in use through the call. */
for (count = 0; count < nargs; count++)
{
@ -3697,6 +3693,8 @@ emit_library_call_value_1 (retval, orgfun, value, no_queue, outmode, nargs, p)
/* Don't allow popping to be deferred, since then
cse'ing of library calls could delete a call and leave the pop. */
NO_DEFER_POP;
valreg = (mem_value == 0 && outmode != VOIDmode
? hard_libcall_value (outmode) : NULL_RTX);
#ifdef PREFERRED_STACK_BOUNDARY
/* Stack must to be properly aligned now. */
@ -3718,12 +3716,45 @@ emit_library_call_value_1 (retval, orgfun, value, no_queue, outmode, nargs, p)
original_args_size.constant, args_size.constant,
struct_value_size,
FUNCTION_ARG (args_so_far, VOIDmode, void_type_node, 1),
mem_value == 0 && outmode != VOIDmode ? hard_libcall_value (outmode) : NULL_RTX,
valreg,
old_inhibit_defer_pop + 1, call_fusage, flags);
/* Now restore inhibit_defer_pop to its actual original value. */
OK_DEFER_POP;
/* If call is cse'able, make appropriate pair of reg-notes around it.
Test valreg so we don't crash; may safely ignore `const'
if return type is void. Disable for PARALLEL return values, because
we have no way to move such values into a pseudo register. */
if ((flags & ECF_CONST)
&& valreg != 0 && GET_CODE (valreg) != PARALLEL)
{
rtx note = 0;
rtx temp = gen_reg_rtx (GET_MODE (valreg));
rtx insns;
int i;
/* Construct an "equal form" for the value which mentions all the
arguments in order as well as the function name. */
for (i = 0; i < nargs; i++)
note = gen_rtx_EXPR_LIST (VOIDmode, argvec[i].value, note);
note = gen_rtx_EXPR_LIST (VOIDmode, fun, note);
insns = get_insns ();
end_sequence ();
emit_libcall_block (insns, temp, valreg, note);
valreg = temp;
}
else if (flags & ECF_CONST)
{
/* Otherwise, just write out the sequence without a note. */
rtx insns = get_insns ();
end_sequence ();
emit_insns (insns);
}
pop_temp_slots ();
/* Copy the value to the right place. */