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| author | Richard Sandiford <richard.sandiford@arm.com> | 2019-08-20 08:53:47 +0000 |
|---|---|---|
| committer | Richard Sandiford <rsandifo@gcc.gnu.org> | 2019-08-20 08:53:47 +0000 |
| commit | b12cdd6e8e8dd1f39a941b731ba1056d656a094f (patch) | |
| tree | d93dca858cd33ec6231aff799254ba6497ff9089 /gcc/calls.h | |
| parent | 0ffef2005fd7536efbc9c3a572701998c8a8080c (diff) | |
| download | gcc-b12cdd6e8e8dd1f39a941b731ba1056d656a094f.zip gcc-b12cdd6e8e8dd1f39a941b731ba1056d656a094f.tar.gz gcc-b12cdd6e8e8dd1f39a941b731ba1056d656a094f.tar.bz2 | |
Add a apply_pass_by_reference_rules helper
This patch adds a helper routine that applies pass-by-reference
semantics to an existing function_arg_info.
The c6x part means that c6x_function_arg and c6x_function_arg_advance
see the same "named" value as pass_by_reference did, rather than
pass_by_reference seeing "true" and the others seeing "false".
This doesn't matter because the c6x port doesn't care about namedness.
The rs6000.c patch removes an assignment to "type", but the only
later code to use it was the patched promote_mode line.
(The reason for patching these places despite the above is that
often target code gets used as a basis for new targets or changes
to existing ones.)
2019-08-20 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* calls.h (apply_pass_by_reference_rules): Declare.
* calls.c (apply_pass_by_reference_rules): New function.
* config/c6x/c6x.c (c6x_call_saved_register_used): Use it.
* config/rs6000/rs6000-call.c (rs6000_parm_needs_stack): Likewise.
* config/s390/s390.c (s390_call_saved_register_used): Likewise.
* function.c (assign_parm_find_data_types): Likewise.
* var-tracking.c (prepare_call_arguments): Likewise.
From-SVN: r274704
Diffstat (limited to 'gcc/calls.h')
| -rw-r--r-- | gcc/calls.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gcc/calls.h b/gcc/calls.h index 5e8c576..01ab390 100644 --- a/gcc/calls.h +++ b/gcc/calls.h @@ -118,6 +118,8 @@ extern void fixup_tail_calls (void); extern bool pass_by_reference (CUMULATIVE_ARGS *, function_arg_info); extern bool pass_va_arg_by_reference (tree); +extern bool apply_pass_by_reference_rules (CUMULATIVE_ARGS *, + function_arg_info &); extern bool reference_callee_copied (CUMULATIVE_ARGS *, const function_arg_info &); extern void maybe_warn_alloc_args_overflow (tree, tree, tree[2], int[2]); |