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m32c.c (m32c_function_arg): Structures are always passed on the stack. 

* config/m32c/m32c.c (m32c_function_arg): Structures are always
passed on the stack.
(m32c_init_cumulative_args): When a function returns a structure,
always pass the pointer to that return area on the stack.
(m32c_function_arg_advance): Don't increment the parameter number
if we're processing the returned structure pointer.
(pushm_info): Reverse order of registers.

From-SVN: r112765
This commit is contained in:
DJ Delorie 2006-04-07 17:50:47 -04:00 committed by DJ Delorie
parent ff5e9a942c
commit 9d746d5e11
2 changed files with 29 additions and 12 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2006-04-07 DJ Delorie <dj@redhat.com>
* config/m32c/m32c.c (m32c_function_arg): Structures are always
passed on the stack.
(m32c_init_cumulative_args): When a function returns a structure,
always pass the pointer to that return area on the stack.
(m32c_function_arg_advance): Don't increment the parameter number
if we're processing the returned structure pointer.
(pushm_info): Reverse order of registers.
2006-04-07 Sebastian Pop <pop@cri.ensmp.fr> 2006-04-07 Sebastian Pop <pop@cri.ensmp.fr>
* tree-ssa-loop-niter.c (inverse, number_of_iterations_ne, * tree-ssa-loop-niter.c (inverse, number_of_iterations_ne,

27
gcc/config/m32c/m32c.c
View File

@ -1204,15 +1204,15 @@ static struct
int a24_bytes; int a24_bytes;
} pushm_info[] = } pushm_info[] =
{ {
/* These are in push order. */ /* These are in reverse push (nearest-to-sp) order. */
{ FB_REGNO, 0x01, 2, 4 }, { R0_REGNO, 0x80, 2, 2 },
{ SB_REGNO, 0x02, 2, 4 },
{ A1_REGNO, 0x04, 2, 4 },
{ A0_REGNO, 0x08, 2, 4 },
{ R3_REGNO, 0x10, 2, 2 },
{ R2_REGNO, 0x20, 2, 2 },
{ R1_REGNO, 0x40, 2, 2 }, { R1_REGNO, 0x40, 2, 2 },
{ R0_REGNO, 0x80, 2, 2 } { R2_REGNO, 0x20, 2, 2 },
{ R3_REGNO, 0x10, 2, 2 },
{ A0_REGNO, 0x08, 2, 4 },
{ A1_REGNO, 0x04, 2, 4 },
{ SB_REGNO, 0x02, 2, 4 },
{ FB_REGNO, 0x01, 2, 4 }
}; };
#define PUSHM_N (sizeof(pushm_info)/sizeof(pushm_info[0])) #define PUSHM_N (sizeof(pushm_info)/sizeof(pushm_info[0]))
@ -1475,6 +1475,9 @@ m32c_function_arg (CUMULATIVE_ARGS * ca,
if (type && INTEGRAL_TYPE_P (type) && POINTER_TYPE_P (type)) if (type && INTEGRAL_TYPE_P (type) && POINTER_TYPE_P (type))
return NULL_RTX; return NULL_RTX;
if (type && AGGREGATE_TYPE_P (type))
return NULL_RTX;
switch (ca->parm_num) switch (ca->parm_num)
{ {
case 1: case 1:
@ -1508,11 +1511,14 @@ m32c_pass_by_reference (CUMULATIVE_ARGS * ca ATTRIBUTE_UNUSED,
/* Implements INIT_CUMULATIVE_ARGS. */ /* Implements INIT_CUMULATIVE_ARGS. */
void void
m32c_init_cumulative_args (CUMULATIVE_ARGS * ca, m32c_init_cumulative_args (CUMULATIVE_ARGS * ca,
tree fntype ATTRIBUTE_UNUSED, tree fntype,
rtx libname ATTRIBUTE_UNUSED, rtx libname ATTRIBUTE_UNUSED,
tree fndecl ATTRIBUTE_UNUSED, tree fndecl,
int n_named_args ATTRIBUTE_UNUSED) int n_named_args ATTRIBUTE_UNUSED)
{ {
if (fntype && aggregate_value_p (TREE_TYPE (fntype), fndecl))
ca->force_mem = 1;
else
ca->force_mem = 0; ca->force_mem = 0;
ca->parm_num = 1; ca->parm_num = 1;
} }
@ -1529,6 +1535,7 @@ m32c_function_arg_advance (CUMULATIVE_ARGS * ca,
{ {
if (ca->force_mem) if (ca->force_mem)
ca->force_mem = 0; ca->force_mem = 0;
else
ca->parm_num++; ca->parm_num++;
} }