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| author | John David Anglin <dave@hiauly1.hia.nrc.ca> | 2002-09-17 03:30:37 +0000 |
|---|---|---|
| committer | John David Anglin <danglin@gcc.gnu.org> | 2002-09-17 03:30:37 +0000 |
| commit | 9dff28ab5386ec651699c6245823e3e2c68d1c64 (patch) | |
| tree | 9562fab54c7f71944f468dd8ea88012248c2545e /gcc/calls.c | |
| parent | 94313f351a9d53ae192d425c82b023b895827009 (diff) | |
| download | gcc-9dff28ab5386ec651699c6245823e3e2c68d1c64.zip gcc-9dff28ab5386ec651699c6245823e3e2c68d1c64.tar.gz gcc-9dff28ab5386ec651699c6245823e3e2c68d1c64.tar.bz2 | |
calls.c (store_one_arg): Set default alignment for BLKmode arguments to BITS_PER_UNIT when...
* calls.c (store_one_arg): Set default alignment for BLKmode arguments
to BITS_PER_UNIT when ARGS_GROW_DOWNWARD and the padding direction is
downward.
* function.c (pad_below): Always compile.
(locate_and_pad_parm): If defined ARGS_GROW_DOWNWARD, pad argument to
alignment when it is not in a register or REG_PARM_STACK_SPACE is true.
Pad below when the argument is not in a register and the padding
direction is downward.
* pa-64.h (MUST_PASS_IN_STACK): Move define to pa.h.
(PAD_VARARGS_DOWN): Define.
* pa.c (function_arg_padding): Revise padding directions to make them
compatible with the 32 and 64-bit runtime architecture documentation.
(hppa_va_arg): Add code to handle variable and size zero arguments
passed by reference on TARGET_64BIT. Reformat.
(function_arg): Use a PARALLEL for BLKmode and aggregates args on
TARGET_64BIT. Use a DImode PARALLEL for BLKmode args 5 to 8 bytes
wide when !TARGET_64BIT. Move forward check for mode==VOIDmode.
Add comments.
* pa.h (MAX_PARM_BOUNDARY): Correct define for TARGET_64BIT.
(RETURN_IN_MEMORY): Return size zero types in memory.
(FUNCTION_VALUE): Return TFmode in general registers.
(MUST_PASS_IN_STACK): Define.
(FUNCTION_ARG_BOUNDARY): Simplify.
(FUNCTION_ARG_PASS_BY_REFERENCE): Pass variable and zero sized types
by reference.
(FUNCTION_ARG_CALLEE_COPIES): Define to FUNCTION_ARG_PASS_BY_REFERENCE.
From-SVN: r57226
Diffstat (limited to 'gcc/calls.c')
| -rw-r--r-- | gcc/calls.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/gcc/calls.c b/gcc/calls.c index 665868f..578bd98 100644 --- a/gcc/calls.c +++ b/gcc/calls.c @@ -4491,6 +4491,7 @@ store_one_arg (arg, argblock, flags, variable_size, reg_parm_stack_space) { /* BLKmode, at least partly to be pushed. */ + unsigned int default_align = PARM_BOUNDARY; int excess; rtx size_rtx; @@ -4498,6 +4499,13 @@ store_one_arg (arg, argblock, flags, variable_size, reg_parm_stack_space) If part is passed in registers, PARTIAL says how much and emit_push_insn will take care of putting it there. */ +#ifdef ARGS_GROW_DOWNWARD + /* When an argument is padded down, the block is not aligned to + PARM_BOUNDARY. */ + if (FUNCTION_ARG_PADDING (arg->mode, TREE_TYPE (pval)) == downward) + default_align = BITS_PER_UNIT; +#endif + /* Round its size up to a multiple of the allocation unit for arguments. */ @@ -4573,7 +4581,7 @@ store_one_arg (arg, argblock, flags, variable_size, reg_parm_stack_space) { rtx size_rtx1 = GEN_INT (reg_parm_stack_space - arg->offset.constant); emit_push_insn (arg->value, arg->mode, TREE_TYPE (pval), size_rtx1, - MAX (PARM_BOUNDARY, TYPE_ALIGN (TREE_TYPE (pval))), + MAX (default_align, TYPE_ALIGN (TREE_TYPE (pval))), partial, reg, excess, argblock, ARGS_SIZE_RTX (arg->offset), reg_parm_stack_space, ARGS_SIZE_RTX (arg->alignment_pad)); @@ -4582,7 +4590,7 @@ store_one_arg (arg, argblock, flags, variable_size, reg_parm_stack_space) emit_push_insn (arg->value, arg->mode, TREE_TYPE (pval), size_rtx, - MAX (PARM_BOUNDARY, TYPE_ALIGN (TREE_TYPE (pval))), + MAX (default_align, TYPE_ALIGN (TREE_TYPE (pval))), partial, reg, excess, argblock, ARGS_SIZE_RTX (arg->offset), reg_parm_stack_space, ARGS_SIZE_RTX (arg->alignment_pad)); |