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| author | Eric Botcazou <ebotcazou@adacore.com> | 2016-10-16 20:13:32 +0000 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@gcc.gnu.org> | 2016-10-16 20:13:32 +0000 |
| commit | 4c640e26064224e29e2a88bd08cff338889da13c (patch) | |
| tree | 4b953aabbc75af0eb299014b434f26373a999694 /gcc/common.opt | |
| parent | 855db69891d4f2a61a16f219d78daf8cd56e3058 (diff) | |
| download | gcc-4c640e26064224e29e2a88bd08cff338889da13c.zip gcc-4c640e26064224e29e2a88bd08cff338889da13c.tar.gz gcc-4c640e26064224e29e2a88bd08cff338889da13c.tar.bz2 | |
re PR ada/37139 (DEP prevents using Ada tasking)
PR ada/37139
PR ada/67205
* common.opt (-ftrampolines): New option.
* doc/invoke.texi (Code Gen Options): Document it.
* doc/tm.texi.in (Trampolines): Add TARGET_CUSTOM_FUNCTION_DESCRIPTORS.
* doc/tm.texi: Regenerate.
* builtins.def: Add init_descriptor and adjust_descriptor.
* builtins.c (expand_builtin_init_trampoline): Do not issue a warning
on platforms with descriptors.
(expand_builtin_init_descriptor): New function.
(expand_builtin_adjust_descriptor): Likewise.
(expand_builtin) <BUILT_IN_INIT_DESCRIPTOR>: New case.
<BUILT_IN_ADJUST_DESCRIPTOR>: Likewise.
* calls.c (prepare_call_address): Remove SIBCALLP parameter and add
FLAGS parameter. Deal with indirect calls by descriptor and adjust.
Set STATIC_CHAIN_REG_P on the static chain register, if any.
(call_expr_flags): Set ECF_BY_DESCRIPTOR for calls by descriptor.
(expand_call): Likewise. Move around call to prepare_call_address
and pass all flags to it.
* cfgexpand.c (expand_call_stmt): Reinstate CALL_EXPR_BY_DESCRIPTOR.
* gimple.h (enum gf_mask): New GF_CALL_BY_DESCRIPTOR value.
(gimple_call_set_by_descriptor): New setter.
(gimple_call_by_descriptor_p): New getter.
* gimple.c (gimple_build_call_from_tree): SetCALL_EXPR_BY_DESCRIPTOR.
(gimple_call_flags): Deal with GF_CALL_BY_DESCRIPTOR.
* langhooks.h (struct lang_hooks): Add custom_function_descriptors.
* langhooks-def.h (LANG_HOOKS_CUSTOM_FUNCTION_DESCRIPTORS): Define.
(LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_CUSTOM_FUNCTION_DESCRIPTORS.
* rtl.h (STATIC_CHAIN_REG_P): New macro.
* rtlanal.c (find_first_parameter_load): Skip static chain registers.
* target.def (custom_function_descriptors): New POD hook.
* tree.h (FUNC_ADDR_BY_DESCRIPTOR): New flag on ADDR_EXPR.
(CALL_EXPR_BY_DESCRIPTOR): New flag on CALL_EXPR.
* tree-core.h (ECF_BY_DESCRIPTOR): New mask.
Document FUNC_ADDR_BY_DESCRIPTOR and CALL_EXPR_BY_DESCRIPTOR.
* tree.c (make_node_stat) <tcc_declaration>: Use FUNCTION_ALIGNMENT.
(build_common_builtin_nodes): Initialize init_descriptor and
adjust_descriptor.
* tree-nested.c: Include target.h.
(struct nesting_info): Add 'any_descr_created' field.
(get_descriptor_type): New function.
(lookup_element_for_decl): New function extracted from...
(create_field_for_decl): Likewise.
(lookup_tramp_for_decl): ...here. Adjust.
(lookup_descr_for_decl): New function.
(convert_tramp_reference_op): Deal with descriptors.
(build_init_call_stmt): New function extracted from...
(finalize_nesting_tree_1): ...here. Adjust and deal withdescriptors.
* defaults.h (FUNCTION_ALIGNMENT): Define.
(TRAMPOLINE_ALIGNMENT): Set to above instead of FUNCTION_BOUNDARY.
* config/i386/i386.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Define.
* config/ia64/ia64.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Likewise.
* config/rs6000/rs6000.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS):Likewise.
* config/sparc/sparc.h (TARGET_CUSTOM_FUNCTION_DESCRIPTORS): Likewise.
ada/
* gcc-interface/misc.c (LANG_HOOKS_CUSTOM_FUNCTION_DESCRIPTORS):Define.
* gcc-interface/trans.c (Attribute_to_gnu) <Attr_Access>: Deal with
a zero TARGET_CUSTOM_FUNCTION_DESCRIPTORS specially for Code_Address.
Otherwise, if TARGET_CUSTOM_FUNCTION_DESCRIPTORS is positive, set
FUNC_ADDR_BY_DESCRIPTOR for 'Access/'Unrestricted_Access of nested
subprograms if the type can use an internal representation.
(call_to_gnu): Likewise, but set CALL_EXPR_BY_DESCRIPTOR on indirect
calls if the type can use an internal representation.
From-SVN: r241222
Diffstat (limited to 'gcc/common.opt')
| -rw-r--r-- | gcc/common.opt | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/gcc/common.opt b/gcc/common.opt index ce16a7e..6f24f56 100644 --- a/gcc/common.opt +++ b/gcc/common.opt @@ -2350,6 +2350,11 @@ ftracer Common Report Var(flag_tracer) Optimization Perform superblock formation via tail duplication. +ftrampolines +Common Report Var(flag_trampolines) Init(0) +For targets that normally need trampolines for nested functions, always +generate them instead of using descriptors. + ; Zero means that floating-point math operations cannot generate a ; (user-visible) trap. This is the case, for example, in nonstop ; IEEE 754 arithmetic. |