PR modula2/111956 Many powerpc platforms do _not_ have support for IEEE754

This patch corrects commit
r14-4149-g81d5ca0b9b8431f1bd7a5ec8a2c94f04bb0cf032 which assummed
all powerpc platforms would have IEEE754 long double.  The patch
ensures that cc1gm2 obtains the default IEEE754 long double availability
from the configure generated tm_defines.  The user command
line switches -mabi=ibmlongdouble and -mabi=ieeelongdouble are implemented
to override the configuration defaults.

Bootstrapped on power8 and power9 machines.

gcc/m2/ChangeLog:

	PR modula2/111956
	* Make-lang.in (host_mc_longreal): Remove.
	* configure: Regenerate.
	* configure.ac (M2C_LONGREAL_FLOAT128): Remove.
	(M2C_LONGREAL_PPC64LE): Remove.
	* gm2-compiler/M2Options.def (SetIBMLongDouble): New procedure.
	(GetIBMLongDouble): New procedure function.
	(SetIEEELongDouble): New procedure.
	(GetIEEELongDouble): New procedure function.
	* gm2-compiler/M2Options.mod (SetIBMLongDouble): New procedure.
	(GetIBMLongDouble): New procedure function.
	(SetIEEELongDouble): New procedure.
	(GetIEEELongDouble): New procedure function.
	(InitializeLongDoubleFlags): New procedure called during
	module block initialization.
	* gm2-gcc/m2configure.cc: Remove duplicate includes.
	(m2configure_M2CLongRealFloat128): Remove.
	(m2configure_M2CLongRealIBM128): Remove.
	(m2configure_M2CLongRealLongDouble): Remove.
	(m2configure_M2CLongRealLongDoublePPC64LE): Remove.
	(m2configure_TargetIEEEQuadDefault): New function.
	* gm2-gcc/m2configure.def (M2CLongRealFloat128): Remove.
	(M2CLongRealIBM128): Remove.
	(M2CLongRealLongDouble): Remove.
	(M2CLongRealLongDoublePPC64LE): Remove.
	(TargetIEEEQuadDefault): New function.
	* gm2-gcc/m2configure.h (m2configure_M2CLongRealFloat128): Remove.
	(m2configure_M2CLongRealIBM128): Remove.
	(m2configure_M2CLongRealLongDouble): Remove.
	(m2configure_M2CLongRealLongDoublePPC64LE): Remove.
	(m2configure_TargetIEEEQuadDefault): New function.
	* gm2-gcc/m2options.h (M2Options_SetIBMLongDouble): New prototype.
	(M2Options_GetIBMLongDouble): New prototype.
	(M2Options_SetIEEELongDouble): New prototype.
	(M2Options_GetIEEELongDouble): New prototype.
	* gm2-gcc/m2type.cc (build_m2_long_real_node): Re-implement using
	results of M2Options_GetIBMLongDouble and M2Options_GetIEEELongDouble.
	* gm2-lang.cc (gm2_langhook_handle_option): Add case
	OPT_mabi_ibmlongdouble and call M2Options_SetIBMLongDouble.
	Add case OPT_mabi_ieeelongdouble and call M2Options_SetIEEELongDouble.
	* gm2config.aci.in: Regenerate.
	* gm2spec.cc (lang_specific_driver): Remove block defined by
	M2C_LONGREAL_PPC64LE.
	Remove case OPT_mabi_ibmlongdouble.
	Remove case OPT_mabi_ieeelongdouble.

libgm2/ChangeLog:

	PR modula2/111956
	* Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* Makefile.in: Regenerate.
	* libm2cor/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2cor/Makefile.in: Regenerate.
	* libm2iso/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2iso/Makefile.in: Regenerate.
	* libm2log/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2log/Makefile.in: Regenerate.
	* libm2min/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2min/Makefile.in: Regenerate.
	* libm2pim/Makefile.am (TARGET_LONGDOUBLE_ABI): Remove.
	* libm2pim/Makefile.in: Regenerate.

Signed-off-by: Gaius Mulley <gaiusmod2@gmail.com>

2 files changed, 6 insertions, 10 deletions

diff --git a/libgm2/libm2pim/Makefile.am b/libgm2/libm2pim/Makefile.am
index 4c5e046..b575cab 100644
--- a/libgm2/libm2pim/Makefile.am
+++ b/libgm2/libm2pim/Makefile.am
@@ -88,7 +88,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 # Subdir rules rely on $(FLAGS_TO_PASS)
@@ -168,14 +167,14 @@ libm2pimdir = libm2pim
 libm2pim_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2pim_la_SOURCES)))
 libm2pim_la_CFLAGS = \
   -I. -I.. -I$(GM2_SRC)/gm2-libs -I$(GM2_SRC)/gm2-libs-iso \
-  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso \
-  $(TARGET_LONGDOUBLE_ABI)
+  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso
+
 libm2pim_la_M2FLAGS = \
   -fm2-pathname=m2pim -I. -I$(GM2_SRC)/gm2-libs \
   -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
   -fm2-g -g -Wcase-enum -Wreturn-type \
-  -fcase -fm2-prefix=m2pim \
-  $(TARGET_LONGDOUBLE_ABI)
+  -fcase -fm2-prefix=m2pim
+
 if TARGET_DARWIN
 libm2pim_la_link_flags = -Wl,-undefined,dynamic_lookup
 else
diff --git a/libgm2/libm2pim/Makefile.in b/libgm2/libm2pim/Makefile.in
index eca7e85..85623d0 100644
--- a/libgm2/libm2pim/Makefile.in
+++ b/libgm2/libm2pim/Makefile.in
@@ -467,7 +467,6 @@ AM_MAKEFLAGS = \
 	"NM_FOR_TARGET=$(NM_FOR_TARGET)" \
 	"DESTDIR=$(DESTDIR)" \
 	"WERROR=$(WERROR)" \
-        "TARGET_LONGDOUBLE_ABI=$(TARGET_LONGDOUBLE_ABI)" \
         "TARGET_LIB_PATH_libgm2=$(TARGET_LIB_PATH_libgm2)"
 
 
@@ -545,15 +544,13 @@ FLAGS_TO_PASS = $(AM_MAKEFLAGS)
 @BUILD_PIMLIB_TRUE@libm2pim_la_DEPENDENCIES = SYSTEM.def $(addsuffix .lo, $(basename $(libm2pim_la_SOURCES)))
 @BUILD_PIMLIB_TRUE@libm2pim_la_CFLAGS = \
 @BUILD_PIMLIB_TRUE@  -I. -I.. -I$(GM2_SRC)/gm2-libs -I$(GM2_SRC)/gm2-libs-iso \
-@BUILD_PIMLIB_TRUE@  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso \
-@BUILD_PIMLIB_TRUE@  $(TARGET_LONGDOUBLE_ABI)
+@BUILD_PIMLIB_TRUE@  -DBUILD_GM2_LIBS -I@srcdir@/../  -I@srcdir@/../libm2iso
 
 @BUILD_PIMLIB_TRUE@libm2pim_la_M2FLAGS = \
 @BUILD_PIMLIB_TRUE@  -fm2-pathname=m2pim -I. -I$(GM2_SRC)/gm2-libs \
 @BUILD_PIMLIB_TRUE@  -fm2-pathname=m2iso -I$(GM2_SRC)/gm2-libs-iso \
 @BUILD_PIMLIB_TRUE@  -fm2-g -g -Wcase-enum -Wreturn-type \
-@BUILD_PIMLIB_TRUE@  -fcase -fm2-prefix=m2pim \
-@BUILD_PIMLIB_TRUE@  $(TARGET_LONGDOUBLE_ABI)
+@BUILD_PIMLIB_TRUE@  -fcase -fm2-prefix=m2pim
 
 @BUILD_PIMLIB_TRUE@@TARGET_DARWIN_FALSE@libm2pim_la_link_flags =  \
 @BUILD_PIMLIB_TRUE@@TARGET_DARWIN_FALSE@	$(am__append_1)