2017-11-16 Hristian Kirtchev <kirtchev@adacore.com>
* sem_elab.adb (Include): Including a node which is also a compilation
unit terminates the search because there are no more lists to examine.
2017-11-16 Hristian Kirtchev <kirtchev@adacore.com>
* sem_ch8.adb (Analyze_Subprogram_Renaming): Ensure that a renaming
declaration does not define a primitive operation of a tagged type for
SPARK.
(Check_SPARK_Primitive_Operation): New routine.
2017-11-16 Arnaud Charlet <charlet@adacore.com>
* libgnat/a-elchha.adb (Last_Chance_Handler): Display Argv (0) in
message when using -E binder switch.
2017-11-16 Piotr Trojanek <trojanek@adacore.com>
* errout.ads: Fix minor typo in comment.
From-SVN: r254804
2017-11-16 Ed Schonberg <schonberg@adacore.com>
* sem_ch3.adb (Process_Subtype): If the subtype indication does not
syntactically denote a type, return Any_Type to prevent subsequent
compiler crashes or infinite loops.
2017-11-16 Steve Baird <baird@adacore.com>
* lib-writ.adb: Fix bug which causes Program_Error to be raised in some
cases when writing out a .ali file when a Rename_Pragma pragma is in
effect.
* lib-writ.adb (Write_Unit_Information): Replace call to
Pragma_Name_Unmapped with call to Pragma_Name.
2017-11-16 Gary Dismukes <dismukes@adacore.com>
* sem_elab.adb: Minor typo fixes.
2017-11-16 Justin Squirek <squirek@adacore.com>
* sem_res.adb (Resolve_Allocator): Correct warning messages and make
them more explicit.
From-SVN: r254803
2017-11-16 Hristian Kirtchev <kirtchev@adacore.com>
* atree.ads (Nkind_In): Add 10 and 11 parameter versions.
* checks.adb (Install_Primitive_Elaboration_Check): Mark the setting of
the elaboration flag as elaboration code.
* einfo.adb (Contract): Update the comments.
(Ignore_SPARK_Mode_Pragmas): Update the comments.
(SPARK_Aux_Pragma): Update the comments.
(SPARK_Aux_Pragma_Inherited): Update the comments.
(SPARK_Pragma): Update the comments. The attribute now applies
to all types and abstract states.
(SPARK_Pragma_Inherited): Update the comments. The attribute now
applies to all types and abstract states.
(Set_Contract): Update the comments.
(Set_Ignore_SPARK_Mode_Pragmas): Update the comments.
(Set_SPARK_Aux_Pragma): Update the comments.
(Set_SPARK_Aux_Pragma_Inherited): Update the comments.
(Set_SPARK_Pragma): Update the comments. The attribute now applies to
all types and abstract states.
(Set_SPARK_Pragma_Inherited): Update the comments. The attribute now
applies to all types and abstract states.
(Write_Field40_Name): Add output for SPARK_Pragma when it appears on a
type and abstract states.
* einfo.ads: Update the documentation of attributes SPARK_Pragma and
SPARK_Pragma_Inherited. Both of them now apply to all types and
abstract states.
* exp_util.adb (Set_Elaboration_Flag): Mark the setting of the
elaboration flag as elaboration code.
* sem_ch3.adb: Add with and use clauses for Sem_Elab.
(Analyze_Full_Type_Declaration): Set the SPARK_Mode of the type. Record
a derived type for later processing by the ABE mechanism.
(Analyze_Incomplete_Type_Decl): Set the SPARK_Mode of the type.
(Analyze_Private_Extension_Declaration): Set the SPARK_Mode of the
type.
* sem_ch7.adb (Analyze_Private_Type_Declaration): Set the SPARK_Mode of
the type.
* sem_elab.adb: Define the term "early call region". Update the
terminology for "scenario" and "target". Update the architecture of
the ABE mechanism. Update the steps which must be taken when adding a
new scenario. Update the section on debugging ABE issues. Add new
hash tables Early_Call_Regions and Recorded_SPARK_Scenarios. Add new
table SPARK_Scenarios. Hash table Elaboration_Context is now
Elaboration_Statuses. The majority of Process_xxx routines have been
updated to better reflect their role.
(Add_Unit): Reimplemented.
(Check_Elaboration_Constituent): New routine.
(Check_Elaboration_Scenarios): Verify previously recorded scenarios for
conditional ABE issues. Verify previously recorded SPARK scenarios.
(Check_SPARK_Derived_Type): New routine.
(Check_SPARK_Instantiation): New routine.
(Check_SPARK_Scenario): New routine.
(Check_SPARK_Refined_State_Pragma): New routine.
(Early_Call_Region): New routine.
(Elaboration_Status): New routine.
(Ensure_Prior_Elaboration): Add new formal parameter Prag_Nam. The
implicit Elabotate[_All] pragma is now specified via Prag_Nam.
(Find_Early_Call_Region): New routine.
(Info_Scenario): Add output for refinement constituents.
(Is_Recorded_SPARK_Scenario): New routine.
(Is_Suitable_SPARK_Derived_Type): New routine.
(Is_Suitable_SPARK_Instantiation): New routine.
(Is_Suitable_SPARK_Refined_State_Pragma): New routine.
(Is_Visited_Body): New routine.
(Kill_Elaboration_Scenario): Reimplemented.
(Output_Active_Scenarios): Add output for pragma Refined_State.
(Output_SPARK_Refined_State_Pragma): New routine.
(Process_Conditional_ABE_Call): Remove the use of -gnatd.v. The effect
is now achieved by different means.
(Process_Conditional_ABE_Call_SPARK): Verify that a call which precedes
the subprogram body appears within the early call region of the body.
Either ensure the prior elaboration of external subprograms or verify
that the context meets the suitable elaboration requirement.
(Process_Conditional_ABE_Instantiation_SPARK): New routine.
(Record_Elaboration_Scenario): Reimplement the portion which enforces
the level restrictions of the static model. Add support for SPARK
scenarios.
(Record_SPARK_Elaboration_Scenario): New routine.
(Reset_Visited_Bodies): New routine.
(Set_Early_Call_Region): New routine.
(Set_Elaboration_Status): New routine.
(Set_Is_Recorded_SPARK_Scenario): New routine.
(Update_Elaboration_Scenario): Reimplemented.
* sem_elab.ads: Add new subtype Library_Or_Instantiation_Level.
* sem_prag.adb (Analyze_Refined_State_In_Decl_Part): Save the pragma
for examination by the ABE Processing phase.
(Create_Abstract_State): Save the SPARK_Mode from the context.
* sem_util.adb (Is_Non_Preelaborable_Construct): New routine.
* sem_util.ads (Is_Non_Preelaborable_Construct): New routine.
* sinfo.adb (Is_Elaboration_Code): New routine.
(Set_Is_Elaboration_Code): New routine.
(Nkind_In): Add 10 and 11 parameter versions.
* sinfo.ads: Add new attribute Is_Elaboration_Code along with
occurrences in nodes.
(Is_Elaboration_Code): New routine along with pragma Inline.
(Set_Is_Elaboration_Code): New routine along with pragma Inline.
(Nkind_In): Add 10 and 11 parameter versions.
2017-11-16 Justin Squirek <squirek@adacore.com>
* sem.adb (Analyze): Remove requirement that the original node of N be
an operator in the case that analysis on the node yields the relevant
operator - so prefer it instead.
From-SVN: r254802
2017-11-16 Bob Duff <duff@adacore.com>
* sem_ch6.adb (Create_Extra_Formals): The type of the BIP_Object_Access
formal must not have a designated type that is the full view coming
from a limited-with'ed package.
* sem_util.adb,sem_util.ads (Incomplete_View_From_Limited_With): New
function called from sem_ch6.
* sem_ch5.adb (Analyze_Assignment): Treat user-defined concatenation
specially for b-i-p cases.
From-SVN: r254801
gcc/
* config/nds32/constraints.md: Provide more constraints.
* config/nds32/nds32.h (enum reg_class, REG_CLASS_NAMES,
REG_CLASS_CONTENTS): Define R5_REG, R8_REG, and FRAME_POINTER_REG to
support constraints usage.
Co-Authored-By: Kito Cheng <kito.cheng@gmail.com>
From-SVN: r254800
[gcc]
2017-11-15 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* config/rs6000/altivec.h (vec_xst_be): New #define.
* config/rs6000/altivec.md (altivec_vperm_<mode>_direct): Rename
and externalize from *altivec_vperm_<mode>_internal.
* config/rs6000/rs6000-builtin.def (XL_BE_V16QI): Remove macro
instantiation.
(XL_BE_V8HI): Likewise.
(XL_BE_V4SI): Likewise.
(XL_BE_V4SI): Likewise.
(XL_BE_V2DI): Likewise.
(XL_BE_V4SF): Likewise.
(XL_BE_V2DF): Likewise.
(XST_BE): Add BU_VSX_OVERLOAD_X macro instantiation.
* config/rs6000/rs6000-c.c (altivec_overloaded_builtins): Correct
all array entries with these keys: VSX_BUILTIN_VEC_XL,
VSX_BUILTIN_VEC_XL_BE, VSX_BUILTIN_VEC_XST. Add entries for key
VSX_BUILTIN_VEC_XST_BE.
* config/rs6000/rs6000.c (altivec_expand_xl_be_builtin): Remove.
(altivec_expand_builtin): Remove handling for VSX_BUILTIN_XL_BE_*
built-ins.
(altivec_init_builtins): Replace conditional calls to def_builtin
for __builtin_vsx_ld_elemrev_{v8hi,v16qi} and
__builtin_vsx_st_elemrev_{v8hi,v16qi} based on TARGET_P9_VECTOR
with unconditional calls. Remove calls to def_builtin for
__builtin_vsx_le_be_<mode>. Add a call to def_builtin for
__builtin_vec_xst_be.
* config/rs6000/vsx.md (vsx_ld_elemrev_v8hi): Convert define_insn
to define_expand, and add alternate RTL generation for P8.
(*vsx_ld_elemrev_v8hi_internal): New define_insn based on
vsx_ld_elemrev_v8hi.
(vsx_ld_elemrev_v16qi): Convert define_insn to define_expand, and
add alternate RTL generation for P8.
(*vsx_ld_elemrev_v16qi_internal): New define_insn based on
vsx_ld_elemrev_v16qi.
(vsx_st_elemrev_v8hi): Convert define_insn
to define_expand, and add alternate RTL generation for P8.
(*vsx_st_elemrev_v8hi_internal): New define_insn based on
vsx_st_elemrev_v8hi.
(vsx_st_elemrev_v16qi): Convert define_insn to define_expand, and
add alternate RTL generation for P8.
(*vsx_st_elemrev_v16qi_internal): New define_insn based on
vsx_st_elemrev_v16qi.
[gcc/testsuite]
2017-11-15 Bill Schmidt <wschmidt@linux.vnet.ibm.com>
* gcc.target/powerpc/swaps-p8-26.c: Modify expected code
generation.
From-SVN: r254787
Add X86_TUNE_EMIT_VZEROUPPER to indicate if vzeroupper instruction should
be inserted before a transfer of control flow out of the function. It is
turned on by default unless we are tuning for KNL. Users can always use
-mzeroupper or -mno-zeroupper to override X86_TUNE_EMIT_VZEROUPPER.
gcc/
PR target/82990
* config/i386/i386.c (pass_insert_vzeroupper::gate): Remove
TARGET_AVX512ER check.
(ix86_option_override_internal): Set MASK_VZEROUPPER if
neither -mzeroupper nor -mno-zeroupper is used and
TARGET_EMIT_VZEROUPPER is set.
* config/i386/i386.h (TARGET_EMIT_VZEROUPPER): New.
* config/i386/x86-tune.def: Add X86_TUNE_EMIT_VZEROUPPER.
gcc/testsuite/
PR target/82990
* gcc.target/i386/pr82942-2.c: Add -mtune=knl.
* gcc.target/i386/pr82990-1.c: New test.
* gcc.target/i386/pr82990-2.c: Likewise.
* gcc.target/i386/pr82990-3.c: Likewise.
* gcc.target/i386/pr82990-4.c: Likewise.
* gcc.target/i386/pr82990-5.c: Likewise.
* gcc.target/i386/pr82990-6.c: Likewise.
* gcc.target/i386/pr82990-7.c: Likewise.
From-SVN: r254783
PR tree-optimization/82726
Revert
2017-01-23 Bin Cheng <bin.cheng@arm.com>
PR tree-optimization/70754
* tree-predcom.c (stmt_combining_refs): New parameter INSERT_BEFORE.
(reassociate_to_the_same_stmt): New parameter INSERT_BEFORE. Insert
combined stmt before it if not NULL.
(combine_chains): Process refs reversely and compute dominance point
for root ref.
Revert
2017-02-23 Bin Cheng <bin.cheng@arm.com>
PR tree-optimization/79663
* tree-predcom.c (combine_chains): Process refs in reverse order
only for ZERO length chains, and add explaining comment.
From-SVN: r254777
Jim has recently started working at SiFive, where he'll be contributing
to our GCC port. Andrew, Kito and I would like him to be a mainatiner.
My understand is that this is the right place to ask.
I've also changed my address to my SiFive one, where I also work -- it
seems cleaner to have everyone use our proper email address.
ChangeLog
2017-11-15 Palmer Dabbelt <palmer@sifive.com>
* MAINTAINERS (RISC-V): Add Jim Wilson as a maintainer.
Use my SiFive email address.
From-SVN: r254774
This patch fixes a couple of more tests that are giving out warnings with -Wreturn-type:
- g++.dg/ext/pr57735.C
- gcc.target/arm/pr54300.C
*** gcc/testsuite/ChangeLog ***
2017-11-10 Sudakshina Das <sudi.das@arm.com>
* g++.dg/ext/pr57735.C: Add -Wno-return-type for test.
* gcc.target/arm/pr54300.C (main): Add return type and
return a value.
From-SVN: r254773
2017-11-15 Tom de Vries <tom@codesourcery.com>
* testsuite/libgomp.oacc-c-c++-common/f-asyncwait-1.c: New test, copied
from asyncwait-1.f90. Rewrite into C. Rewrite from float to int.
* testsuite/libgomp.oacc-c-c++-common/f-asyncwait-2.c: New test, copied
from asyncwait-2.f90. Rewrite into C. Rewrite from float to int.
* testsuite/libgomp.oacc-c-c++-common/f-asyncwait-3.c: New test, copied
from asyncwait-3.f90. Rewrite into C. Rewrite from float to int.
From-SVN: r254769
https://gcc.gnu.org/ml/gcc-patches/2017-11/msg01200.html
PR c++/81574
* lambda.c (lambda_capture_field_type): Function references are
always catured by reference.
PR c++/81574
* g++.dg/cpp1y/pr81574.C: New.
From-SVN: r254768
2017-11-15 Martin Liska <mliska@suse.cz>
* decl.c (begin_destructor_body): Use cp_build_fold_indirect_ref
instead of cp_build_indirect_ref.
From-SVN: r254765
2017-11-15 Martin Liska <mliska@suse.cz>
* tree-cfg.c (pass_warn_function_return::execute):
Compare warn_return_type for greater than zero.
2017-11-15 Martin Liska <mliska@suse.cz>
* options.c (gfc_post_options):
Do not set default value of warn_return_type.
* trans-decl.c (gfc_trans_deferred_vars):
Compare warn_return_type for greater than zero.
(generate_local_decl): Likewise
(gfc_generate_function_code): Likewise.
From-SVN: r254764
2017-11-15 Sebastian Peryt <sebastian.peryt@intel.com>
gcc/
PR target/82941
PR target/82942
* config/i386/i386.c (pass_insert_vzeroupper): Modify gate condition
to return true on Xeon and not on Xeon Phi.
(ix86_check_avx256_register): Changed to ...
(ix86_check_avx_upper_register): ... this. Add extra check for
VALID_AVX512F_REG_OR_XI_MODE.
(ix86_avx_u128_mode_needed): Changed
ix86_check_avx256_register to ix86_check_avx_upper_register.
(ix86_check_avx256_stores): Changed to ...
(ix86_check_avx_upper_stores): ... this. Changed
ix86_check_avx256_register to ix86_check_avx_upper_register.
(ix86_avx_u128_mode_after): Changed
avx_reg256_found to avx_upper_reg_found. Changed
ix86_check_avx256_stores to ix86_check_avx_upper_stores.
(ix86_avx_u128_mode_entry): Changed
ix86_check_avx256_register to ix86_check_avx_upper_register.
(ix86_avx_u128_mode_exit): Ditto.
* config/i386/i386.h: (host_detect_local_cpu): New define.
2017-11-15 Sebastian Peryt <sebastian.peryt@intel.com>
gcc/testsuite/
PR target/82941
PR target/82942
* gcc.target/i386/pr82941-1.c: New test.
* gcc.target/i386/pr82941-2.c: New test.
* gcc.target/i386/pr82942-1.c: New test.
* gcc.target/i386/pr82942-2.c: New test.
From-SVN: r254763
PR target/82981
* internal-fn.c: Include gimple-ssa.h, tree-phinodes.h and
ssa-iterators.h.
(can_widen_mult_without_libcall): New function.
(expand_mul_overflow): If only checking unsigned mul overflow,
not result, and can do efficiently MULT_HIGHPART_EXPR, emit that.
Don't use WIDEN_MULT_EXPR if it would involve a libcall, unless
no other way works. Add MULT_HIGHPART_EXPR + MULT_EXPR support.
(expand_DIVMOD): Formatting fix.
* expmed.h (expand_mult): Add NO_LIBCALL argument.
* expmed.c (expand_mult): Likewise. Use OPTAB_WIDEN rather
than OPTAB_LIB_WIDEN if NO_LIBCALL is true, and allow it to fail.
* gcc.target/mips/pr82981.c: New test.
From-SVN: r254758
PR tree-optimization/82977
* tree-ssa-strlen.c (strlen_optimize_stmt): Pass a reference to a copy
constructed temporary to strlen_to_stridx.put.
From-SVN: r254757
2017-11-15 Martin Liska <mliska@suse.cz>
* decl.c (begin_destructor_body): In case of VPTR sanitization
(with disabled recovery), zero vptr in order to catch virtual calls
after lifetime of an object.
2017-11-15 Martin Liska <mliska@suse.cz>
* g++.dg/ubsan/vptr-12.C: New test.
From-SVN: r254754
* explow.c (anti_adjust_stack_and_probe_stack_clash): Avoid probing
the red zone for stack_clash_protection_final_dynamic_probe targets
when the total dynamic stack size is zero bytes.
From-SVN: r254753
for gcc/ChangeLog
* dumpfile.h (TDF_COMPARE_DEBUG): New.
* final.c (rest_of_clean_state): Set it for the
-fcompare-debug dump.
* tree-pretty-print.c (dump_generic_node): Omit OBJ_TYPE_REF
class when TDF_COMPARE_DEBUG is set.
From-SVN: r254751
Unlike bootstrap-debug, bootstrap-debug-lean used to pass compare using
the traditional compare command, because it compiled both stage2 and
stage3 with options that used to generate identical output
(-fcompare-debug= in stage2 vs -fcompare-debug in stage3).
Since we started adding relevant command-line flags to DW_AT_producer,
this is no longer the case, and stages 2 and 3 object files that differ
in nothing but the DW_AT_producer strings.
-fcompare-debug is short for -fcompare-debug=-gtoggle, so stage3
compiles twice, once with the normal options, once with toggled -g, to
then compare the temporary final dumps. When enabled, both compilations
get from the driver an additional -frandom-seed flag (if none is given
explicitly).
-fcompare-debug= is short for -fno-compare-debug, disabling the second
compilation.
The difference between the DW_AT_producer lines are the different
-fcompare-debug flags, and the presence of the -frandom-seed flag in the
stage3 compilation.
It is easy and sensible enough to filter the -fcompare-debug flags out
of the DW_AT_producer string. This option should never affect the
compilation output, it just determines whether or not to perform an
additional compilation that should produce the same executable output.
However, dropping -frandom-seed is not quite correct, in that it might
have other consequences on the compilation. So, it makes little sense
to make the effort to drop it when it's implicit; for those comparing
compiler output differences, it might even hint at what causes, and
could fix, difficult to explain differences, namely, explicitly
supplying -frandom-seed options.
They don't seem to matter for compiler bootstraps, though, at least
for now, so we can safely refrain from issuing -frandom-seed (or maybe
we already issue it where needed :-), and then, for
bootstrap-debug-lean, use the compare-debug script, that strips out
debug information before comparing the object files.
for config/ChangeLog
* bootstrap-debug-lean.mk (do-compare): Use the
contrib/compare-debug script.
for gcc/ChangeLog
* dwarf2out.c (gen_producer_string): Discard
OPT_fcompare_debug.
From-SVN: r254750
Various implementations of C99/C11 <tgmath.h> have the property that
their macro expansions contain many copies of the macro arguments, so
resulting in exponential blowup of the size of macro expansions where
a call to such a macro contains other such calls in the macro
arguments.
This patch adds a (C-only) language feature __builtin_tgmath designed
to avoid this problem by implementing the <tgmath.h> function
selection rules directly in the compiler. The effect is that
type-generic macros can be defined simply as
#define pow(a, b) __builtin_tgmath (powf, pow, powl, \
cpowf, cpow, cpowl, a, b)
as in the example added to the manual, with each macro argument
expanded exactly once. The details of __builtin_tgmath are as
described in the manual. This is C-only since C++ uses function
overloading and just defines <ctgmath> to include <ccomplex> and
<cmath>.
__builtin_tgmath handles C99/C11 type-generic macros, and _FloatN,
_FloatNx and decimal floating-point types (following the proposed
resolution to the floating-point TS DR#9 that makes the rules for
finding a common type from arguments to a type-generic macro follow
the usual arithmetic conversions after adjustment of integer arguments
to _Decimal64 or double - or to _Complex double in the case of GNU
complex integer arguments).
Type-generic macros for functions from TS 18661 that round their
results to a narrower type are handled, but there are still some
unresolved questions regarding such macros so further changes in that
regard may be needed in future. The current implementation follows an
older version of the DR#13 resolution (allowing a function for a
wide-enough argument type to be selected if no exactly-matching
function is available), but with appropriate calls to __builtin_tgmath
is still fully compatible with the latest version of the resolution
(not yet in the DR log), and allowing such not-exactly-matching
argument types to be chosen in that case avoids needing another
special case to treat integers as _Float64 instead of double in
certain cases.
Regarding other possible language/library features, not currently
implemented in GCC:
* Imaginary types could be naturally supported by allowing cases where
the type-generic type is an imaginary type T and arguments or return
types may be T (as at present), or the corresponding real type to T
(as at present), or (new) the corresponding real type if T is real
or imaginary but T if T is complex. (tgmath.h would need a series
of functions such as
static inline _Imaginary double
__sin_imag (_Imaginary double __x)
{
return _Imaginary_I * sinh (__imag__ __x);
}
to be used in __builtin_tgmath calls.)
* __builtin_tgmath would use the constant rounding direction in the
presence of support for the FENV_ROUND / FENV_DEC_ROUND pragmas.
Support for those would also require a new __builtin_<something> to
cause a non-type-generic call to use the constant rounding
direction (it seems cleaner to add a new __builtin_<something> when
required than to make __builtin_tgmath handle a non-type-generic
case with only one function argument).
* TS 18661-5 __STDC_TGMATH_OPERATOR_EVALUATION__ would require new
__builtin_<something> that evaluates with excess range and precision
like arithmetic operators do.
* The proposed C bindings for IEEE 754-2018 augmented arithmetic
operations involve struct return types. As currently implemented
__builtin_tgmath does not handle those, but support could be added.
There are many error cases that the implementation diagnoses. I've
tried to ensure reasonable error messages for erroneous uses of
__builtin_tgmath, but the errors for erroneous uses of the resulting
type-generic macros (that is, when the non-function arguments have
inappropriate types) are more important as they are more likely to be
seen by users.
GCC's own tgmath.h, as used for some targets, is updated in this
patch. I've tested those changes minimally, via adjusting
gcc.dg/c99-tgmath-* locally to use that tgmath.h version. I've also
run the glibc testsuite (which has much more thorough tests of
correctness of tgmath.h function selection) with a glibc patch to use
__builtin_tgmath in glibc's tgmath.h.
Bootstrapped with no regressions on x86_64-pc-linux-gnu.
PR c/81156
gcc:
* doc/extend.texi (Other Builtins): Document __builtin_tgmath.
* ginclude/tgmath.h (__tg_cplx, __tg_ldbl, __tg_dbl, __tg_choose)
(__tg_choose_2, __tg_choose_3, __TGMATH_REAL_1_2)
(__TGMATH_REAL_2_3): Remove macros.
(__TGMATH_CPLX, __TGMATH_CPLX_2, __TGMATH_REAL, __TGMATH_REAL_2)
(__TGMATH_REAL_3, __TGMATH_CPLX_ONLY): Define using
__builtin_tgmath.
(frexp, ldexp, nexttoward, scalbn, scalbln): Define using
__TGMATH_REAL_2.
(remquo): Define using __TGMATH_REAL_3.
gcc/c:
* c-parser.c (check_tgmath_function): New function.
(enum tgmath_parm_kind): New enum.
(c_parser_postfix_expression): Handle __builtin_tgmath.
gcc/c-family:
* c-common.c (c_common_reswords): Add __builtin_tgmath.
* c-common.h (enum rid): Add RID_BUILTIN_TGMATH.
gcc/testsuite:
* gcc.dg/builtin-tgmath-1.c, gcc.dg/builtin-tgmath-2.c,
gcc.dg/builtin-tgmath-err-1.c, gcc.dg/builtin-tgmath-err-2.c,
gcc.dg/dfp/builtin-tgmath-dfp-err.c,
gcc.dg/dfp/builtin-tgmath-dfp.c: New tests.
From-SVN: r254749
Remove the code that determined LHS/RHS context for var expressions
(was needed previously for some instances of the back end). LHS/RHS
context is computed by the back end in all cases, so no need to have
this code in the front end any more.
Reviewed-on: https://go-review.googlesource.com/77510
* go-gcc.cc (var_expression): Remove Varexpr_context parameter.
From-SVN: r254748
