* doc/xml/manual/documentation_hacking.xml: Fix broken reference
to the Doxygen manual. Avoid a "here" link on the way.
Fix another broken link to Doxygen docblocks.
From-SVN: r273852
This test is failing with older cpus because the included header needs both
altivec and vsx to be enabled to succeed in compiling. Without this (if these
are not defaults for the cpu) there are errors like:
In file included from ... x86intrin.h:41,
from ... bmi2-bzhi64-1a.c:6:
... xmmintrin.h: In function '_mm_loadu_ps':
... xmmintrin.h:122:11:
error: incompatible types when returning type 'int' but '__m128' {aka '__vector(4) float'} was expected
<snip>
... xmmintrin.h: In function '_mm_cvtps_pi32':
... xmmintrin.h:996:3:
error: use of 'long long' in AltiVec types is invalid without '-mvsx'
<snip>
Fixed by adding -maltivec -mvsx to the options.
gcc/testsuite/
2019-07-27 Iain Sandoe <iain@sandoe.co.uk>
* gcc.target/powerpc/bmi2-bzhi64-1a.c: Add options to enable altivec
and vsx.
From-SVN: r273844
Darwin's "size" command has a different header line, reflecting the Mach-O
section naming conventions. This causes tests using the command to fail
because scanasm.exp expects and checks specific layout of the header line.
gcc/testsuite/
2019-07-26 Iain Sandoe <iain@sandoe.co.uk>
* lib/scanasm.exp (object-size): Handle Darwin's size command.
From-SVN: r273839
This macro was added as part of moving std::endian from <type_traits> to
<bit>.
* include/std/bit (__cpp_lib_endian): Define.
* include/std/version (__cpp_lib_endian): Define.
* testsuite/26_numerics/endian/2.cc: New.
* testsuite/26_numerics/endian/3.cc: New.
* testsuite/26_numerics/endian/4.cc: New.
From-SVN: r273828
Due to config.gcc all the options need to be on one line because of the grep
lines which would select only the first line of the option.
This causes it not to select the right bits on options that are spread over
multiple lines when the --with-arch configure option is used. The issue happens
silently and you just get a compiler with an incorrect set of default flags.
The current rules are quite rigid:
1) No space between the AARCH64_OPT_EXTENSION and the opening (.
2) No space between the opening ( and the extension name.
3) No space after the extension name before the ,.
4) Spaces are only allowed after a , and around |.
This patch makes this a lot less fragile by using the C pre-processor to flatten
the list and then provides much more flexible regex using group matching to
process the options instead of string replacement. This removes all the
restrictions above and makes the code a bit more readable.
gcc/ChangeLog:
PR target/89517
* config.gcc: Relax parsing of AARCH64_OPT_EXTENSION.
* config/aarch64/aarch64-option-extensions.def: Add new comments
and restore easier to read options.
From-SVN: r273827
This patch moves part of the type conversion code from convert.c to match.pd
because match.pd is able to apply these transformations in the presence of
intermediate temporary variables.
Concretely it makes both these cases behave the same
float e = (float)a * (float)b;
*c = (_Float16)e;
and
*c = (_Float16)((float)a * (float)b);
gcc/ChangeLog:
* convert.c (convert_to_real_1): Move part of conversion code...
* match.pd: ...To here.
gcc/testsuite/ChangeLog:
* gcc.dg/type-convert-var.c: New test.
From-SVN: r273826
2019-07-26 Martin Jambor <mjambor@suse.cz>
PR ipa/89330
* ipa-inline-transform.c (check_speculations_1): New function.
(push_all_edges_in_set_to_vec): Likewise.
(check_speculations): Use check_speculations_1, new parameter
new_edges.
(inline_call): Pass new_edges to check_speculations.
* ipa-inline.c (add_new_edges_to_heap): Assert edge_callee is not
NULL.
(speculation_useful_p): Early return true if edge is inlined, remove
later checks for inline_failed.
testsuite/
* g++.dg/lto/pr89330_[01].C: New test.
* g++.dg/tree-prof/devirt.C: Added -fno-profile-values to dg-options.
From-SVN: r273825
This change to an early C++2a feature was just approved (P1612R1).
* include/std/bit (endian): Move definition here as per P1612R1.
* include/std/type_traits (endian): Remove definition from here.
* testsuite/20_util/endian/1.cc: Rename to ...
* testsuite/26_numerics/endian/1.cc: ... here. Adjust header.
From-SVN: r273816
The testcase is failing to instrument part of the source because of a bug
in the ordering of static DTORs. It seems unlikely that this is generically
fixable in the toolchain (and given that it's likely to be a dynamic loader
change would not be expected to be applied retrospectively to OS versions
that are out of support). To avoid the testsuite noise, xfail the count lines
that don't match (we can adjust the xfails as/when the upstream bug is fixed).
dejagnu xfails do not seem to work when embedded in a line like:
~Test (void) { .... /* count(1) { xfail ... } */ }
the closing brace seems to confuse the parser. The solution is to exapnd the
text onto three lines.
2019-07-25 Iain Sandoe <iain@sandoe.co.uk>
PR gcov-profile/91087
* g++.dg/gcov/pr16855.C: Xfail the count lines for the DTORs and the
"final" line for the failure summaries. Adjust source layout so that
dejagnu xfail expressions work.
From-SVN: r273809
2019-07-25 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/65819
* dependency.h (gfc_dep_resovler): Add optional argument identical.
* dependency.c (gfc_check_dependency): Do not alway return 1 if
the symbol is the same. Pass on identical to gfc_dep_resolver.
(gfc_check_element_vs_element): Whitespace fix.
(gfc_dep_resolver): Adjust comment for function. If identical is
true, return 1 if any overlap has been found.
2019-07-25 Thomas Koenig <tkoenig@gcc.gnu.org>
PR fortran/65819
* gfortran.dg/dependency_54.f90: New test.
From-SVN: r273807
* cif-code.def (NEVER_CALL): New code.
* ipa-inline.c (want_inline_small_function_p): Fix formatting issues.
Set the failure to CIF_NEVER_CALL if the IPA count is zero.
From-SVN: r273804
The Thumb-2 movsi patterns try to prefer low registers for loads and stores.
However this is done incorrectly by using 2 separate variants with 'l' and 'h'
register classes. The register allocator will only use low registers, and
as a result we end up with significantly more spills and moves to high
registers. Fix this by merging the alternatives and use 'l*r' to indicate
preference for low registers. This saves ~400 instructions from the pr77308
testcase.
gcc/
* config/arm/thumb2.md (thumb2_movsi_insn): Fix load/store low reg.
* config/arm/vfp.md (thumb2_movsi_vfp): Likewise.
From-SVN: r273802
2019-07-25 Richard Biener <rguenther@suse.de>
* tree-vrp.c (extract_range_from_multiplicative_op): Add
type parameter and use it instead of guessing expression
type from the first operand.
(extract_range_from_binary_expr): Pass expr_type down.
From-SVN: r273797
GCC 10 now supports having RTL codes being code attributes (thanks
Richard) allowing us to map smax to smin and vice versa.
This means we can clean up their use in the saturation patterns that do
the cross product of [smin, smax] and use the pattern
predicate to cancel out the nonsense ones.
* config/arm/arm.md (SATrev): Change to code attribute.
(*satsi_<SAT:code>): Adjust for the above.
(*satsi_<SAT:code>_shift): Likewise.
From-SVN: r273796
Currently get_most_common_single_value could only return the max hist
<value, count>, add sort after reading from disk, then it return nth value
in later use. Rename it to get_nth_most_common_value.
gcc/ChangeLog:
2019-07-15 Xiong Hu Luo <luoxhu@linux.ibm.com>
* ipa-profile.c (get_most_common_single_value): Use
get_nth_most_common_value.
* profile.c (sort_hist_value): New function.
(compute_value_histograms): Call sort_hist_value to sort the
values after loading from disk.
* value-prof.c (get_most_common_single_value): Rename to ...
get_nth_most_common_value. Add input params n, return
the n_th value and count.
(gimple_divmod_fixed_value_transform): Use
get_nth_most_common_value.
(gimple_ic_transform): Likewise.
(gimple_stringops_transform): Likewise.
* value-prof.h (get_most_common_single_value): Add input params
n, default to 0.
From-SVN: r273789
PR tree-optimization/91183 - strlen of a strcpy result with a conditional source not folded
PR tree-optimization/86688 - missing -Wstringop-overflow using a non-string local array in strnlen with excessive bound
gcc/ChangeLog:
PR tree-optimization/91183
PR tree-optimization/86688
* builtins.c (compute_objsize): Handle MEM_REF.
* tree-ssa-strlen.c (class ssa_name_limit_t): New.
(get_min_string_length): Remove.
(count_nonzero_bytes): New function.
(handle_char_store): Rename...
(handle_store): to this. Handle multibyte stores via integer types.
(strlen_check_and_optimize_stmt): Adjust conditional and the called
function name.
gcc/testsuite/ChangeLog:
PR tree-optimization/91183
PR tree-optimization/86688
* gcc.dg/Wstringop-overflow-14.c: New test.
* gcc.dg/attr-nonstring-2.c: Remove xfails.
* gcc.dg/strlenopt-70.c: New test.
* gcc.dg/strlenopt-71.c: New test.
* gcc.dg/strlenopt-72.c: New test.
* gcc.dg/strlenopt-8.c: Remove xfails.
From-SVN: r273783
We still need to cater for pr80556, for the single-arch case.
2019-07-24 Iain Sandoe <iain@sandoe.co.uk>
gcc/
PR bootstrap/87030
* config/i386/darwin.h (REAL_LIBGCC_SPEC): Revert r273749.
From-SVN: r273768
* gimplify.c (flag_instrument_functions_exclude_p): Include
namespace/class information in the printable name.
* opts.c (add_comma_separated_to_vector): Add NUL terminator
to tokens entered into the vector.
From-SVN: r273766
When entering an interrupt, not only the call save registers needs to
be place on stack but also the call clobbers one. More over, the
ARC700 return from interrupt instruction needs to be rtie, the same
like ARCv2 CPUs. While the ARC6xx family uses j.f [ilinkX]
instruction. Additionally, we need to save the state of the ZOL
machinery, namely the lp_count, lp_end and lp_start registers. For
architectures which are using extension registers (i.e., HS48) we need
to save/restore them as well.
gcc/
xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com>
* config/arc/arc-protos.h (arc_output_function_epilogue): Delete
declaration.
(arc_compute_frame_size): Millicode is disabled when compiling
ISR.
(arc_return_address_register): Likewise.
(arc_compute_function_type): Likewise.
(arc_compute_frame_size): Likewise.
(secondary_reload_info): Likewise.
(arc_get_unalign): Likewise.
(arc_can_use_return_insn): Declare.
* config/arc/arc.c (AUX_LP_START): Define
(AUX_LP_END): Likewise.
(arc_frame_info): Update gmask member to 64-bit datum.
(GMASK_LEN): Update.
(arc_compute_function_type): Make it static, move it forward.
(arc_must_save_register): Update, consider the extra regs.
(arc_compute_millicode_save_restore_regs): Update to use the 64
bit gmask.
(arc_compute_frame_size): Likewise.
(arc_enter_leave_p): Likewise.
(arc_save_callee_saves): Likewise.
(arc_restore_callee_saves): Likewise.
(arc_save_callee_enter): Likewise.
(arc_restore_callee_leave): Likewise.
(arc_save_callee_milli): Likewise.
(arc_restore_callee_milli): Likewise.
(arc_expand_prologue): Add new interrupt handling.
(arc_return_address_register): Make it static, move it forward.
(arc_expand_epilogue): Add new interrupt handling.
(arc_get_unalign): Delete.
(arc_epilogue_uses): Make sure we do not remove the extra
saved/restored registers when interrupt.
(arc_can_use_return_insn): New function.
(push_reg): Likewise.
(pop_reg): Likewise.
(arc_save_callee_saves): Add ZOL and FPX aux registers saving
procedures.
(arc_restore_callee_saves): Likewise, but restoring.
* config/arc/arc.md (VUNSPEC_ARC_ARC600_RTIE): Define.
(R33_REG): Likewise.
(R34_REG): Likewise.
(R35_REG): Likewise.
(R36_REG): Likewise.
(R37_REG): Likewise.
(R38_REG): Likewise.
(R39_REG): Likewise.
(R45_REG): Likewise.
(R46_REG): Likewise.
(R47_REG): Likewise.
(R48_REG): Likewise.
(R49_REG): Likewise.
(R50_REG): Likewise.
(R51_REG): Likewise.
(R52_REG): Likewise.
(R53_REG): Likewise.
(R54_REG): Likewise.
(R55_REG): Likewise.
(R56_REG): Likewise.
(R58_REG): Likewise.
(type): Add rtie attribute.
(in_call_delay_slot): Use RETURN_ADDR_REGNUM.
(movsi_insn): Accept moves to lp_count.
(rtie): Update pattern.
(simple_return): Simplify it, don't use this pattern as a return
from an interrupt.
(arc600_rtie): New pattern.
(p_return_i): Clean up.
(return): Likewise.
* config/arc/builtins.def (rtie): Only available for non ARC6xx
family CPUs.
* config/arc/predicates.md (move_src_operand): Consider lp_count
as a register.
gcc/testsuite
xxxx-xx-xx Claudiu Zissulescu <claziss@synopsys.com>
* gcc.target/arc/arc.exp (check_effective_target_accregs): New
predicate.
* gcc.target/arc/builtin_special.c: Update test/
* gcc.target/arc/interrupt-1.c: Likewise.
* gcc.target/arc/interrupt-10.c: New test.
* gcc.target/arc/interrupt-11.c: Likewise.
* gcc.target/arc/interrupt-12.c: Likewise.
update
From-SVN: r273761
This patch implements the addv, subv, and mulv patterns for signed
integers.
gcc/ChangeLog:
2019-07-24 Andreas Krebbel <krebbel@linux.ibm.com>
* config/s390/predicates.md (addv_const_operand): New predicate.
* config/s390/s390-modes.def (CCO): New condition code mode.
* config/s390/s390.c (s390_match_ccmode_set): Handle E_CCOmode.
(s390_branch_condition_mask): Likewise.
* config/s390/s390.md ("addv<mode>4", "subv<mode>4")
("mulv<mode>4"): New expanders.
("*addv<mode>3_ccoverflow", "*addv<mode>3_ccoverflow_const")
("*subv<mode>3_ccoverflow", "*mulv<mode>3_ccoverflow"): New
pattern definitions.
gcc/testsuite/ChangeLog:
2019-07-24 Andreas Krebbel <krebbel@linux.ibm.com>
* gcc.target/s390/addsub-signed-overflow-1.c: New test.
* gcc.target/s390/addsub-signed-overflow-2.c: New test.
* gcc.target/s390/mul-signed-overflow-1.c: New test.
* gcc.target/s390/mul-signed-overflow-2.c: New test.
From-SVN: r273759
Messed up the commit, and missed changes to gcc/config.gcc and to the comments
in some of the headers.
2019-07-24 Iain Sandoe <iain@sandoe.co.uk>
gcc/
PR bootstrap/87030
* config/i386/darwin.h (REAL_LIBGCC_SPEC): Move from here...
* config/i386/darwin32-biarch.h .. to here.
* config/i386/darwin64-biarch.h: Adjust comments.
* config/rs6000/darwin32-biarch.h: Likewise.
* config/rs6000/darwin64-biarch.h: Likewise.
* config.gcc: Missed commit from r273746
(*-*-darwin*): Don't include CPU t-darwin here.
(i[34567]86-*-darwin*): Adjust to use biarch files. Produce
an error message if i686-darwin configuration is attempted for
Darwin >= 18.
From-SVN: r273749
2019-07-23 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/54072
* check.c (gfc_invalid_boz): Fix comment.
(illegal_boz_arg): New function.
(gfc_check_transfer): Use to arguments.
(gfc_check_storage_size): Ditto.
(gfc_check_complex): Remove leftover comment from BOZ patch.
* primary.c (match_boz_constant): Remove leftover comment.
2019-07-23 Steven G. Kargl <kargl@gcc.gnu.org>
PR fortran/54072
* gfortran.dg/illegal_boz_arg_1.f90: New tests.
From-SVN: r273748
2019-07-23 Steven G. Kargl <kargl@gcc.gnu.org>
* arith.c (gfc_convert_integer, gfc_convert_real, gfc_convert_complex):
Move to ...
* primary.c (convert_integer, convert_real, convert_complex): ... here.
Rename and make static functions.
(match_integer_constant): Use convert_integer
(match_real_constant): Use convert_real.
(match_complex_constant: Use convert_complex.
* arith.h (gfc_convert_integer, gfc_convert_real, gfc_convert_complex):
Remove prototypes.
* array.c (match_array_cons_element): A BOZ cannot be a data
statement value. Jump to a common exit point.
* check.c (gfc_invalid_boz): New function. Emit error or warning
for a BOZ in an invalid context.
(boz_args_check): Move to top of file to prevent need of forward
declaration.
(is_boz_constant): New function. Check that BOZ expr is constant.
(gfc_b z2real): New function. In-place conversion of BOZ literal
constant to REAL in accordance to F2018.
(gfc_boz2int): New function. In-place conversion of BOZ literal
onstant to INTEGER in accordance to F2018.
(gfc_check_achar, gfc_check_char, gfc_check_float): Use gfc_invalid_boz.
Convert BOZ as needed.
(gfc_check_bge_bgt_ble_blt): Enforce F2018 requirements on BGE,
BGT, BLE, and BLT intrinsic functions.
(gfc_check_cmplx): Re-organize to check kind, if present, first.
Convert BOZ real and/or imaginary parts as needed in accordance to
F2018.
(gfc_check_complex): Use gfc_invalid_boz. Convert BOZ as needed.
(gfc_check_dcmplx, gfc_check_dble ): Convert BOZ as needed.
(gfc_check_dshift): Make dshift[lr] conform to F2018 standard.
gfc_check_float (gfc_expr *a)
(gfc_check_iand_ieor_ior): Make IAND, IEOR, and IOR conform to
F2018 standard.
(gfc_check_int): Conform to F2018 standard.
(gfc_check_intconv): Deprecate SHORT and LONG aliases for INT2 and
INT. Simply return for a BOZ argument. See gfc_simplify_intconv.
(gfc_check_merge_bits): Make MERGE_BITS conform to Fortran 2018
standard.
(gfc_check_real): Remove incorrect comment. Check kind, if present,
first. Simply return for a BOZ argument. See gfc_simplify_real.
(gfc_check_and): Re-do error handling for BOZ arguments. Remove
special casing ts.type != BT_INTEGER or BT_LOGICAL.
* decl.c (match_old_style_init): Check for BOZ in old-style
initialization. Issue error or warning depending on
-fallow-invalid-boz option. Issue error if variable is not an
INTEGER or REAL and the value is BOZ.
* expr.c (gfc_copy_expr): Copy a BT_BOZ gfc_expr.
(gfc_check_assign): Re-do error handling for a BOZ in an assignment
statement. Do in-place conversion of RHS based on LHS type of
INTEGER or REAL.
* gfortran.h (gfc_expr): Add a boz component. Remove is_boz component.
(gfc_boz2int, gfc_boz2real, gfc_invalid_boz): New prototypes.
* interface.c (gfc_extend_assign): Guard against replacing an
intrinsic involving a BOZ literal constant on RHS.
* invoke.texi: Doument -fallow-invalid-boz.
* lang.opt: New option. -fallow-invalid-boz.
* libgfortran.h (bt): Elevate BOZ to a basic type.
* misc.c (gfc_basic_typename, gfc_typename): Translate BT_BOZ to BOZ.
* primary.c (convert_integer, convert_real, convert_complex): to here.
Rename and make static functions.
* primary.c(match_boz_constant): Rewrite parsing of a BOZ. Re-do
error handling. Deprecate 'X' for hexidecimal and postfix notation.
Use -fallow-invalid-boz and gfc_invalid_boz to accept deprecated code.
* resolve.c (resolve_ordinary_assign): Rework a RHS that is a
BOZ literal constant. Use gfc_invalid_boz to allow previous
nonstandard behavior. Remove range checking of BOZ conversion.
* simplify.c (convert_boz): Remove function.
(simplify_cmplx): Remove conversion of BOZ constants, because
conversion is done in gfc_check_cmplx.
(gfc_simplify_float): Remove conversion of BOZ constant, because
conversion is done in gfc_check_float.
(simplify_intconv): Use gfc_boz2int to convert BOZ to INTEGER.
Remove range checking for BOZ conversion.
(gfc_simplify_real): Use k, if present, to determine kind. Convert
BOZ to REAL. Remove range checking for BOZ conversion.
target-memory.c (gfc_convert_boz): Rewrite to deal with convert of
a BOZ to a REAL value.
2019-07-23 Steven G. Kargl <kargl@gcc.gnu.org>
* gfortran.dg/achar_5.f90: Fix for new BOZ handling.
* arithmetic_overflow_1.f90: Ditto.
* gfortran.dg/boz_11.f90: Ditto.
* gfortran.dg/boz_12.f90: Ditto.
* gfortran.dg/boz_4.f90: Ditto.
* gfortran.dg/boz_5.f90: Ditto.
* gfortran.dg/boz_6.f90: Ditto.
* gfortran.dg/boz_7.f90: Ditto.
* gfortran.dg/boz_8.f90: Ditto.
* gfortran.dg/dec_structure_6.f90: Ditto.
* gfortran.dg/dec_union_1.f90: Ditto.
* gfortran.dg/dec_union_2.f90: Ditto.
* gfortran.dg/dec_union_5.f90: Ditto.
* gfortran.dg/dshift_3.f90: Ditto.
* gfortran.dg/gnu_logical_2.f90: Ditto.
* gfortran.dg/int_conv_1.f90: Ditto.
* gfortran.dg/ishft_1.f90: Ditto.
* gfortran.dg/nan_4.f90: Ditto.
* gfortran.dg/no_range_check_3.f90: Ditto.
* gfortran.dg/pr16433.f: Ditto.
* gfortran.dg/pr44491.f90: Ditto.
* gfortran.dg/pr58027.f90: Ditto.
* gfortran.dg/pr81509_2.f90: Ditto.
* gfortran.dg/unf_io_convert_1.f90: Ditto.
* gfortran.dg/unf_io_convert_2.f90: Ditto.
* gfortran.fortran-torture/execute/intrinsic_fraction_exponent.f90:
Ditto.
* gfortran.fortran-torture/execute/intrinsic_mvbits.f90: Ditto.
* gfortran.fortran-torture/execute/intrinsic_nearest.f90: Ditto.
* gfortran.fortran-torture/execute/seq_io.f90: Ditto.
* gfortran.dg/gnu_logical_1.F: Delete test.
* gfortran.dg/merge_bits_3.f90: New test.
* gfortran.dg/merge_bits_3.f90: Ditto.
* gfortran.dg/boz_int.f90: Ditto.
* gfortran.dg/boz_bge.f90: Ditto.
* gfortran.dg/boz_complex_1.f90: Ditto.
* gfortran.dg/boz_complex_2.f90: Ditto.
* gfortran.dg/boz_complex_3.f90: Ditto.
* gfortran.dg/boz_dble.f90: Ditto.
* gfortran.dg/boz_dshift_1.f90: Ditto.
* gfortran.dg/boz_dshift_2.f90: Ditto.
* gfortran.dg/boz_float_1.f90: Ditto.
* gfortran.dg/boz_float_2.f90: Ditto.
* gfortran.dg/boz_float_3.f90: Ditto.
* gfortran.dg/boz_iand_1.f90: Ditto.
* gfortran.dg/boz_iand_2.f90: Ditto.
2019-07-23 Steven G. Kargl <kargl@gcc.gnu.org>
* testsuite/libgomp.fortran/reduction4.f90: Update BOZ usage
* testsuite/libgomp.fortran/reduction5.f90: Ditto.
From-SVN: r273747
This is about 32/64b host and multilib support across the range of Darwin
systems.
Prior to Darwin8 (OS X 10.4), the toolchains support only PowerPC and only 32b.
On Darwin8 it is possible to target a 64b multilib, but with support limited
to a few of the main libraries on the system (not a recommended configuration).
From Darwin9 to Darwin17 (OSX 10.5 to 10.13) it is possible to have either
32 or 64b hosted toolchains, with support for a 64 or 32b multilib respectively.
On Darwin9 the kernel is 32b, but with support for 64b executables, so it's
conventional to build a 32b host toolchain supporting a 64b multilib. However
this is not enforced (merely a convention).
There is also some platform hardware supporting Darwin10/11 which is only 32b
and for which the same situation applies. However, from Darwin10 to Darwin17,
the majority of platform hardware supports a 64b kernel and it's conventional
to build a 64b host toolchain with support for a 32b multilib.
On/from Darwin18 (OS X 10.14), the development headers (in the SDK) no longer
expose the interfaces for the 32b multilib support (although sufficient runtime
support remains installed that the testsuite can be run for a 32b multilib).
The PR is raised against this latter situation since the absence of exposed
interfaces causes a 'default' bootstrap fail regardless of the availability of
the runtimes. Given the number of permutations, I felt it warranted a general
solution, especially since the current scheme of target headers and t-make
fragments has become somewhat messy.
The changes here enforce the single 32b PowerPC multilib for Darwin < 8 and the
single X86 64b multilib for Darwin >= 18. This means that there is no longer
any need to configure Darwin18+ '--disable-multilib', but also that if you want
to use the ability to continue to test the compiler's 32b multilib there, you
need to make a configuration targeting an earlier OS version (and using the
SDK from that).
gcc/
PR bootstrap/87030
* config.gcc (*-*-darwin*): Don't include CPU t-darwin here.
(i[34567]86-*-darwin*): Adjust to use biarch files. Produce
an error message if i686-darwin configuration is attempted for
Darwin >= 18.
(x86_64-*-darwin*): Switch to single multilib for Darwin >= 18.
(powerpc-*-darwin*): Use biarch files where needed.
(powerpc64-*-darwin*): Likewise.
* config/i386/darwin.h (REAL_LIBGCC_SPEC): Move to new biarch file.
(DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single
arch case.
* config/i386/darwin32-biarch.h: New.
* config/i386/darwin64.h: Rename.
* gcc/config/i386/darwin64-biarch.h: To this.
* config/i386/t-darwin: Rename.
* gcc/config/i386/t-darwin32-biarch: To this.
* config/i386/t-darwin64: Rename.
* gcc/config/i386/t-darwin64-biarch: To this.
* config/rs6000/darwin32-biarch.h: New.
* config/rs6000/darwin64.h: Rename.
* config/rs6000/darwin64-biarch.h: To this.
(DARWIN_ARCH_SPEC, DARWIN_SUBARCH_SPEC): Revise for default single
arch case.
* config/rs6000/t-darwin8: Rename.
* config/rs6000/t-darwin32-biarch: To this.
* config/rs6000/t-darwin64 Rename.
* config/rs6000/t-darwin64-biarch: To this.
From-SVN: r273746
