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sh.c (sh_builtin_saveregs): If starting with an odd fp register... 

* sh.c (sh_builtin_saveregs): If starting with an odd fp register,
	make sure that buffer starts on odd word address.
	(sh_va_arg): Skip odd fp registers when reading a double precision
	value.

From-SVN: r53337
This commit is contained in:
J"orn Rennecke 2002-05-09 17:41:56 +00:00 committed by Joern Rennecke
parent c87978aa20
commit f78ec36a71
2 changed files with 23 additions and 1 deletions
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7
gcc/ChangeLog
View File

@ -1,3 +1,10 @@
Thu May 9 18:29:24 2002 J"orn Rennecke <joern.rennecke@superh.com>
* sh.c (sh_builtin_saveregs): If starting with an odd fp register,
make sure that buffer starts on odd word address.
(sh_va_arg): Skip odd fp registers when reading a double precision
value.
2002-05-09 Neil Booth <neil@daikokuya.demon.co.uk>
* tree.h (preserve_data, object_permanent_p, type_precision):

17
gcc/config/sh/sh.c
View File

@ -5090,6 +5090,15 @@ sh_builtin_saveregs ()
if (TARGET_SHMEDIA)
regbuf = gen_rtx_MEM (BLKmode,
gen_rtx_REG (Pmode, ARG_POINTER_REGNUM));
else if (n_floatregs & 1)
{
rtx addr;
regbuf = assign_stack_local (BLKmode, bufsize + UNITS_PER_WORD, 0);
addr = copy_to_mode_reg (Pmode, XEXP (regbuf, 0));
emit_insn (gen_iorsi3 (addr, addr, GEN_INT (UNITS_PER_WORD)));
regbuf = change_address (regbuf, BLKmode, addr);
}
else
regbuf = assign_stack_local (BLKmode, bufsize, 0);
alias_set = get_varargs_alias_set ();
@ -5353,13 +5362,19 @@ sh_va_arg (valist, type)
if (pass_as_float)
{
int first_floatreg
= current_function_args_info.arg_count[(int) SH_ARG_FLOAT];
int n_floatregs = MAX (0, NPARM_REGS (SFmode) - first_floatreg);
emit_cmp_and_jump_insns (expand_expr (next_fp, NULL_RTX, Pmode,
EXPAND_NORMAL),
expand_expr (next_fp_limit, NULL_RTX,
Pmode, EXPAND_NORMAL),
GE, const1_rtx, Pmode, 1, lab_false);
if (TYPE_ALIGN (type) > BITS_PER_WORD)
if (TYPE_ALIGN (type) > BITS_PER_WORD
|| (((TREE_CODE (type) == REAL_TYPE && size == 8) || size == 16)
&& (n_floatregs & 1)))
{
tmp = build (BIT_AND_EXPR, ptr_type_node, next_fp,
build_int_2 (UNITS_PER_WORD, 0));