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sh.c (sh_va_arg): If argument was passed by reference, dereference the pointer. 

* sh.c (sh_va_arg): If argument was passed by reference,
	dereference the pointer.

From-SVN: r52734
This commit is contained in:
J"orn Rennecke 2002-04-24 22:12:32 +00:00 committed by Joern Rennecke
parent 309d8365e5
commit 5e039e6b12
2 changed files with 22 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,4 +1,7 @@
Wed Apr 24 21:35:11 2002 J"orn Rennecke <joern.rennecke@superh.com>
Wed Apr 24 21:51:54 2002 J"orn Rennecke <joern.rennecke@superh.com>
* sh.c (sh_va_arg): If argument was passed by reference,
dereference the pointer.
* sh.h (PIC_OFFSET_TABLE_REGNUM): Conditionalize on flag_pic.

19
gcc/config/sh/sh.c
View File

@ -5293,11 +5293,16 @@ sh_va_arg (valist, type)
HOST_WIDE_INT size, rsize;
tree tmp, pptr_type_node;
rtx addr_rtx, r;
rtx result;
int pass_by_ref = MUST_PASS_IN_STACK (TYPE_MODE (type), type);
size = int_size_in_bytes (type);
rsize = (size + UNITS_PER_WORD - 1) & -UNITS_PER_WORD;
pptr_type_node = build_pointer_type (ptr_type_node);
if (pass_by_ref)
type = build_pointer_type (type);
if (! TARGET_SH5 && (TARGET_SH3E || TARGET_SH4) && ! TARGET_HITACHI)
{
tree f_next_o, f_next_o_limit, f_next_fp, f_next_fp_limit, f_next_stack;
@ -5411,7 +5416,19 @@ sh_va_arg (valist, type)
/* ??? In va-sh.h, there had been code to make values larger than
size 8 indirect. This does not match the FUNCTION_ARG macros. */
return std_expand_builtin_va_arg (valist, type);
result = std_expand_builtin_va_arg (valist, type);
if (pass_by_ref)
{
#ifdef POINTERS_EXTEND_UNSIGNED
if (GET_MODE (addr) != Pmode)
addr = convert_memory_address (Pmode, result);
#endif
result = gen_rtx_MEM (ptr_mode, force_reg (Pmode, result));
set_mem_alias_set (result, get_varargs_alias_set ());
}
/* ??? expand_builtin_va_arg will also set the alias set of the dereferenced
argument to the varargs alias set. */
return result;
}
/* Define the offset between two registers, one to be eliminated, and