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| author | Richard Henderson <rth@gcc.gnu.org> | 2004-09-08 11:45:21 -0700 |
|---|---|---|
| committer | Richard Henderson <rth@gcc.gnu.org> | 2004-09-08 11:45:21 -0700 |
| commit | 6cdd56724aff3adc4bef1b5441526d84ddb6d2cb (patch) | |
| tree | e2b5ae247504eef2927039baf6729090ed6d7ff8 /gcc/function.c | |
| parent | 7f7e0703105e0ba185eb29beba29e55964b48f55 (diff) | |
| download | gcc-6cdd56724aff3adc4bef1b5441526d84ddb6d2cb.zip gcc-6cdd56724aff3adc4bef1b5441526d84ddb6d2cb.tar.gz gcc-6cdd56724aff3adc4bef1b5441526d84ddb6d2cb.tar.bz2 | |
function.c (reference_callee_copied): New.
* function.c (reference_callee_copied): New.
(assign_parm_setup_reg): Use it.
* calls.c (initialize_argument_information): Likewise.
(emit_library_call_value_1): Likewise.
* function.h (reference_callee_copied): Declare.
* target.h (struct gcc_target): Add callee_copies.
* target-def.h (TARGET_CALLEE_COPIES): New.
(TARGET_PASS_BY_REFERENCE): Update default.
* expr.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* targhooks.c (hook_callee_copies_named): New.
(hook_bool_CUMULATIVE_ARGS_mode_tree_bool_false): Rename from
hook_pass_by_reference_false.
(hook_bool_CUMULATIVE_ARGS_mode_tree_bool_true): New.
* targhooks.h: Update decls.
* config/arc/arc.c (TARGET_CALLEE_COPIES): New.
* config/arc/arc.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/frv/frv-protos.h (frv_function_arg_callee_copies): Remove.
* config/frv/frv.c (frv_function_arg_callee_copies): Remove.
* config/frv/frv.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/iq2000/iq2000.c (TARGET_CALLEE_COPIES): New.
* config/iq2000/iq2000.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/m68hc11/m68hc11.c (TARGET_CALLEE_COPIES): New.
* config/m68hc11/m68hc11.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/mips/mips.c (TARGET_CALLEE_COPIES): New.
(mips_callee_copies): New.
* config/mips/mips.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/mmix/mmix.c (TARGET_CALLEE_COPIES): New.
* config/mmix/mmix.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/mn10300/mn10300.c (TARGET_CALLEE_COPIES): New.
* config/mn10300/mn10300.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/pa/pa.c (TARGET_CALLEE_COPIES): New.
* config/pa/pa.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/sh/sh.c (sh_callee_copies): New.
(TARGET_CALLEE_COPIES): New.
* config/sh/sh.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* config/v850/v850.c (TARGET_CALLEE_COPIES): New.
* config/v850/v850.h (FUNCTION_ARG_CALLEE_COPIES): Remove.
* doc/tm.texi (TARGET_CALLEE_COPIES): Replace documentation
for FUNCTION_ARG_CALLEE_COPIES.
* doc/rtl.texi (CALL_INSN_FUNCTION_USAGE): Update.
From-SVN: r87195
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/gcc/function.c b/gcc/function.c index 589294f..34c5d65 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -1951,6 +1951,18 @@ pass_by_reference (CUMULATIVE_ARGS *ca, enum machine_mode mode, return targetm.calls.pass_by_reference (ca, mode, type, named_arg); } +/* Return true if TYPE, which is passed by reference, should be callee + copied instead of caller copied. */ + +bool +reference_callee_copied (CUMULATIVE_ARGS *ca, enum machine_mode mode, + tree type, bool named_arg) +{ + if (type && TREE_ADDRESSABLE (type)) + return false; + return targetm.calls.callee_copies (ca, mode, type, named_arg); +} + /* Structures to communicate between the subroutines of assign_parms. The first holds data persistent across all parameters, the second is cleared out for each parameter. */ @@ -2766,9 +2778,8 @@ assign_parm_setup_reg (struct assign_parm_data_all *all, tree parm, { tree type = TREE_TYPE (data->passed_type); - if (FUNCTION_ARG_CALLEE_COPIES (all->args_so_far, TYPE_MODE (type), - type, data->named_arg) - && !TREE_ADDRESSABLE (type)) + if (reference_callee_copied (&all->args_so_far, TYPE_MODE (type), + type, data->named_arg)) { rtx copy; |