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function.c (assign_parm_setup_block): Relax condition on multi-register optimization. 

* function.c (assign_parm_setup_block): Relax condition on
	multi-register optimization.

From-SVN: r93233
This commit is contained in:
Aldy Hernandez 2005-01-12 20:01:38 +00:00 committed by Aldy Hernandez
parent 88910b6aed
commit 640019aa48
2 changed files with 42 additions and 32 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2005-01-12 Aldy Hernandez <aldyh@redhat.com>
* function.c (assign_parm_setup_block): Relax condition on
multi-register optimization.
2005-01-12 Nick Clifton <nickc@redhat.com> 2005-01-12 Nick Clifton <nickc@redhat.com>
* config/sh/sh.md (udivsi3_sh2a, divsi3_sh2a): Give these patterns * config/sh/sh.md (udivsi3_sh2a, divsi3_sh2a): Give these patterns

69
gcc/function.c
View File

@ -2560,42 +2560,47 @@ assign_parm_setup_block (struct assign_parm_data_all *all,
/* If we've a non-block object that's nevertheless passed in parts, /* If we've a non-block object that's nevertheless passed in parts,
reconstitute it in register operations rather than on the stack. */ reconstitute it in register operations rather than on the stack. */
if (GET_CODE (entry_parm) == PARALLEL if (GET_CODE (entry_parm) == PARALLEL
&& data->nominal_mode != BLKmode && data->nominal_mode != BLKmode)
&& XVECLEN (entry_parm, 0) > 1
&& use_register_for_decl (parm))
{ {
rtx parmreg = gen_reg_rtx (data->nominal_mode); rtx elt0 = XEXP (XVECEXP (entry_parm, 0, 0), 0);
push_to_sequence (all->conversion_insns); if ((XVECLEN (entry_parm, 0) > 1
|| hard_regno_nregs[REGNO (elt0)][GET_MODE (elt0)] > 1)
/* For values returned in multiple registers, handle possible && use_register_for_decl (parm))
incompatible calls to emit_group_store.
For example, the following would be invalid, and would have to
be fixed by the conditional below:
emit_group_store ((reg:SF), (parallel:DF))
emit_group_store ((reg:SI), (parallel:DI))
An example of this are doubles in e500 v2:
(parallel:DF (expr_list (reg:SI) (const_int 0))
(expr_list (reg:SI) (const_int 4))). */
if (data->nominal_mode != data->passed_mode)
{ {
rtx t = gen_reg_rtx (GET_MODE (entry_parm)); rtx parmreg = gen_reg_rtx (data->nominal_mode);
emit_group_store (t, entry_parm, NULL_TREE,
GET_MODE_SIZE (GET_MODE (entry_parm))); push_to_sequence (all->conversion_insns);
convert_move (parmreg, t, 0);
/* For values returned in multiple registers, handle possible
incompatible calls to emit_group_store.
For example, the following would be invalid, and would have to
be fixed by the conditional below:
emit_group_store ((reg:SF), (parallel:DF))
emit_group_store ((reg:SI), (parallel:DI))
An example of this are doubles in e500 v2:
(parallel:DF (expr_list (reg:SI) (const_int 0))
(expr_list (reg:SI) (const_int 4))). */
if (data->nominal_mode != data->passed_mode)
{
rtx t = gen_reg_rtx (GET_MODE (entry_parm));
emit_group_store (t, entry_parm, NULL_TREE,
GET_MODE_SIZE (GET_MODE (entry_parm)));
convert_move (parmreg, t, 0);
}
else
emit_group_store (parmreg, entry_parm, data->nominal_type,
int_size_in_bytes (data->nominal_type));
all->conversion_insns = get_insns ();
end_sequence ();
SET_DECL_RTL (parm, parmreg);
return;
} }
else
emit_group_store (parmreg, entry_parm, data->nominal_type,
int_size_in_bytes (data->nominal_type));
all->conversion_insns = get_insns ();
end_sequence ();
SET_DECL_RTL (parm, parmreg);
return;
} }
size = int_size_in_bytes (data->passed_type); size = int_size_in_bytes (data->passed_type);