Corrects a previous change made to the SPARC stdc bindings, and
backports PPC-related fixes.  The library and language testsuite now
passes fully on powerpc64le-linux-gnu.

Fixes: PR d/90719
Fixes: PR d/94825

Reviewed-on: https://github.com/dlang/dmd/pull/11079
	     https://github.com/dlang/druntime/pull/3078
	     https://github.com/dlang/druntime/pull/3083

libphobos/ChangeLog:

	PR d/94825
	* libdruntime/Makefile.am (DRUNTIME_SOURCES_CONFIGURED): Remove
	config/powerpc/switchcontext.S
	* libdruntime/Makefile.in: Regenerate.
	* libdruntime/config/powerpc/callwithstack.S: Remove.
	* libdruntime/config/powerpc/switchcontext.S: Fix symbol name of
	fiber_switchContext.
	* libdruntime/core/thread.d: Disable fiber migration tests on PPC.
	* testsuite/libphobos.thread/fiber_guard_page.d: Set guardPageSize
	same as stackSize.

A typo in the macro call meant that the #error always triggered.

libphobos/ChangeLog:

	* testsuite/lib/libphobos.exp (check_effective_target_linux_pre_2639):
	Fix KERNEL_VERSION condition.

Multilibs should not have been split up as two logically different CPU,
so at configure time, powerpc64 was being detected, but none of the
32-bit support files were being compiled in.

libphobos/ChangeLog:

	PR d/94825
	* configure: Regenerate.
	* libdruntime/Makefile.am (DRUNTIME_SOURCES_CONFIGURED): Add both
	switchcontext.S and callwithstack.S if DRUNTIME_CPU_POWERPC.
	* libdruntime/Makefile.in: Regenerate.
	* libdruntime/config/powerpc/switchcontext.S: Add !__PPC64__ guards.
	* libdruntime/config/powerpc64/callwithstack.S: Add __PPC64__ guards.
	* m4/druntime/cpu.m4 (DRUNTIME_CPU_SOURCES): Define DRUNTIME_CPU_POWER
	for all powerpc biarchs.  Remove DRUNTIME_CPU_POWER64 conditional.

Merge upstream druntime 47688279.

Reviewed-on: https://github.com/dlang/druntime/pull/3073

Fixes: PR d/90718
Fixes: PR d/90719

libphobos/ChangeLog:

	* libdruntime/Makefile.am (DRUNTIME_DSOURCES_LINUX): Remove
	core/sys/linux/sys/netinet/tcp.d.
	* libdruntime/Makefile.in: Regenerate.

libphobos/ChangeLog:

2020-04-27  Iain Buclaw  <ibuclaw@gdcproject.org>

	* configure.tgt: Add hppa-*-linux* as a supported target.

libphobos/ChangeLog:

	* configure: Regenerate.
	* m4/druntime/libraries.m4 (DRUNTIME_LIBRARIES_NET): Remove
	AC_CACHE_CHECK, simplify by setting LIBS directly.

Adds a new test directive COMPILABLE_MATH_TEST, and support has been
added for it in gdc-convert-test so that they are skipped if phobos is
not present on the target.

Only change in D runtime is a small documentation fix.

Reviewed-on: https://github.com/dlang/druntime/pull/3067
	     https://github.com/dlang/dmd/pull/11060

gcc/testsuite/ChangeLog:

	PR d/89418
	* lib/gdc-utils.exp (gdc-convert-test): Add dg-skip-if for compilable
	tests that depend on the phobos standard library.

libphobos/ChangeLog:

	* configure: Regenerate.
	* configure.tgt: Add power*-*-linux* as a supported target, only
	building libdruntime.
	* m4/druntime/cpu.m4 (DRUNTIME_CPU_SOURCES): Add cases for powerpcle
	and powerpc64le target cpus.

* New core.math.toPrec templates have been added as an intrinsic.

  Some floating point algorithms, such as Kahan-Babuska-Neumaier
  Summation, require rounding to specific precisions. Rounding to
  precision after every operation, however, loses overall precision in
  the general case and is a runtime performance problem.

  Adding these functions guarantee the rounding at required points in
  the code, and document where in the algorithm the requirement exists.

* Support IBM long double types in core.internal.convert.

* Add missing aliases for 64-bit vectors in core.simd.

* RUNNABLE_PHOBOS_TEST directive has been properly integrated into the
  D2 language testsuite.

Reviewed-on: https://github.com/dlang/druntime/pull/3063
	     https://github.com/dlang/dmd/pull/11054

gcc/d/ChangeLog:

	* intrinsics.cc (expand_intrinsic_toprec): New function.
	(maybe_expand_intrinsic): Handle toPrec intrinsics.
	* intrinsics.def (TOPRECF, TOPREC, TOPRECL): Add toPrec intrinsics.