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ia64.c (hfa_element_mode): Return false for zero-sized top-level aggregates. 

* config/ia64/ia64.c (hfa_element_mode): Return false for
        zero-sized top-level aggregates.

From-SVN: r92741
This commit is contained in:
Richard Henderson 2004-12-30 12:47:55 -08:00 committed by Richard Henderson
parent 64f33597f3
commit 3d6a9acd51
2 changed files with 15 additions and 3 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2004-12-30 Richard Henderson <rth@redhat.com>
* config/ia64/ia64.c (hfa_element_mode): Return false for
zero-sized top-level aggregates.
2004-12-30 Jan Hubicka <jh@suse.cz>
PR target/18019

13
gcc/config/ia64/ia64.c
View File

@ -186,7 +186,7 @@ static rtx gen_movdi_x (rtx, rtx, rtx);
static rtx gen_fr_spill_x (rtx, rtx, rtx);
static rtx gen_fr_restore_x (rtx, rtx, rtx);
static enum machine_mode hfa_element_mode (tree, int);
static enum machine_mode hfa_element_mode (tree, bool);
static void ia64_setup_incoming_varargs (CUMULATIVE_ARGS *, enum machine_mode,
tree, int *, int);
static bool ia64_pass_by_reference (CUMULATIVE_ARGS *, enum machine_mode,
@ -2968,10 +2968,14 @@ ia64_setup_incoming_varargs (CUMULATIVE_ARGS *cum, enum machine_mode mode,
An aggregate is a homogeneous floating point aggregate is if all
fields/elements in it have the same floating point type (e.g,
SFmode). 128-bit quad-precision floats are excluded. */
SFmode). 128-bit quad-precision floats are excluded.
Variable sized aggregates should never arrive here, since we should
have already decided to pass them by reference. Top-level zero-sized
aggregates are excluded because our parallels crash the middle-end. */
static enum machine_mode
hfa_element_mode (tree type, int nested)
hfa_element_mode (tree type, bool nested)
{
enum machine_mode element_mode = VOIDmode;
enum machine_mode mode;
@ -2979,6 +2983,9 @@ hfa_element_mode (tree type, int nested)
int know_element_mode = 0;
tree t;
if (!nested && (!TYPE_SIZE (type) || integer_zerop (TYPE_SIZE (type))))
return VOIDmode;
switch (code)
{
case VOID_TYPE: case INTEGER_TYPE: case ENUMERAL_TYPE: