From ed965309dad6553ada999c70724c57817ac1eb36 Mon Sep 17 00:00:00 2001 From: Jakub Jelinek Date: Thu, 23 Feb 2006 09:58:22 +0100 Subject: [PATCH] [multiple changes] 2006-02-23 Jakub Jelinek * configure.ac: Add --with{,out}-long-double-128 configure option. (TARGET_DEFAULT_LONG_DOUBLE_128): New test. * configure: Rebuilt. * config.in: Rebuilt. * doc/install.texi (Options specification): Document --with-long-double-128. * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128] (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128. * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128] (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128. 2006-02-23 Aldy Hernandez * config/s390/s390.c (override_options): Handle TARGET_DEFAULT_LONG_DOUBLE_128. * config/alpha/alpha.c (override_options): Handle TARGET_DEFAULT_LONG_DOUBLE_128. * config/sparc/sparc.c (sparc_override_options): Handle TARGET_DEFAULT_LONG_DOUBLE_128. From-SVN: r111381 --- gcc/ChangeLog | 25 +++++++++++++++++++++ gcc/config.in | 6 ++++++ gcc/config/alpha/alpha.c | 5 +++++ gcc/config/rs6000/linux.h | 5 +++++ gcc/config/rs6000/linux64.h | 5 +++++ gcc/config/s390/s390.c | 5 +++++ gcc/config/sparc/sparc.c | 5 +++++ gcc/configure | 43 ++++++++++++++++++++++++++++++++++++- gcc/configure.ac | 33 ++++++++++++++++++++++++++++ gcc/doc/install.texi | 8 +++++++ 10 files changed, 139 insertions(+), 1 deletion(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8470fa8ecd73..2b327b91115b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,28 @@ +2006-02-23 Jakub Jelinek + + * configure.ac: Add --with{,out}-long-double-128 configure option. + (TARGET_DEFAULT_LONG_DOUBLE_128): New test. + * configure: Rebuilt. + * config.in: Rebuilt. + * doc/install.texi (Options specification): Document + --with-long-double-128. + + * config/rs6000/linux.h [TARGET_DEFAULT_LONG_DOUBLE_128] + (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128. + * config/rs6000/linux64.h [TARGET_DEFAULT_LONG_DOUBLE_128] + (RS6000_DEFAULT_LONG_DOUBLE_SIZE): Define to 128. + +2006-02-23 Aldy Hernandez + + * config/s390/s390.c (override_options): Handle + TARGET_DEFAULT_LONG_DOUBLE_128. + + * config/alpha/alpha.c (override_options): Handle + TARGET_DEFAULT_LONG_DOUBLE_128. + + * config/sparc/sparc.c (sparc_override_options): Handle + TARGET_DEFAULT_LONG_DOUBLE_128. + 2006-02-22 Daniel Jacobowitz * Makefile.in (stmp-fixinc): Use real-$(INSTALL_HEADERS_DIR). diff --git a/gcc/config.in b/gcc/config.in index bb262d8c2606..98e34388dff9 100644 --- a/gcc/config.in +++ b/gcc/config.in @@ -1283,6 +1283,12 @@ #endif +/* Define if TFmode long double should be the default */ +#ifndef USED_FOR_TARGET +#undef TARGET_DEFAULT_LONG_DOUBLE_128 +#endif + + /* Define if your target C library provides stack protector support */ #ifndef USED_FOR_TARGET #undef TARGET_LIBC_PROVIDES_SSP diff --git a/gcc/config/alpha/alpha.c b/gcc/config/alpha/alpha.c index 909035a26940..14d54388e608 100644 --- a/gcc/config/alpha/alpha.c +++ b/gcc/config/alpha/alpha.c @@ -516,6 +516,11 @@ override_options (void) REAL_MODE_FORMAT (DFmode) = &vax_g_format; REAL_MODE_FORMAT (TFmode) = NULL; } + +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128 + if (!(target_flags_explicit & MASK_LONG_DOUBLE_128)) + target_flags |= MASK_LONG_DOUBLE_128; +#endif } /* Returns 1 if VALUE is a mask that contains full bytes of zero or ones. */ diff --git a/gcc/config/rs6000/linux.h b/gcc/config/rs6000/linux.h index 1816d0fc7f11..3df356fca1aa 100644 --- a/gcc/config/rs6000/linux.h +++ b/gcc/config/rs6000/linux.h @@ -120,3 +120,8 @@ #endif #define POWERPC_LINUX + +/* ppc linux has 128-bit long double support in glibc 2.4 and later. */ +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128 +#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 +#endif diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h index d292380b4ba5..26f749679296 100644 --- a/gcc/config/rs6000/linux64.h +++ b/gcc/config/rs6000/linux64.h @@ -584,3 +584,8 @@ while (0) #endif #define POWERPC_LINUX + +/* ppc{32,64} linux has 128-bit long double support in glibc 2.4 and later. */ +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128 +#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 +#endif diff --git a/gcc/config/s390/s390.c b/gcc/config/s390/s390.c index 3eeb4acb0b6d..2ebe8ac009fa 100644 --- a/gcc/config/s390/s390.c +++ b/gcc/config/s390/s390.c @@ -1415,6 +1415,11 @@ override_options (void) } else if (s390_stack_guard) error ("-mstack-guard implies use of -mstack-size"); + +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128 + if (!(target_flags_explicit & MASK_LONG_DOUBLE_128)) + target_flags |= MASK_LONG_DOUBLE_128; +#endif } /* Map for smallest class containing reg regno. */ diff --git a/gcc/config/sparc/sparc.c b/gcc/config/sparc/sparc.c index b5781ac65d7a..f44c6d0ad193 100644 --- a/gcc/config/sparc/sparc.c +++ b/gcc/config/sparc/sparc.c @@ -791,6 +791,11 @@ sparc_override_options (void) sparc_costs = &ultrasparc3_costs; break; }; + +#ifdef TARGET_DEFAULT_LONG_DOUBLE_128 + if (!(target_flags_explicit & MASK_LONG_DOUBLE_128)) + target_flags |= MASK_LONG_DOUBLE_128; +#endif } #ifdef SUBTARGET_ATTRIBUTE_TABLE diff --git a/gcc/configure b/gcc/configure index 5a225da402bd..b07c28610cf3 100755 --- a/gcc/configure +++ b/gcc/configure @@ -932,6 +932,7 @@ Optional Packages: --with-libiconv-prefix[=DIR] search for libiconv in DIR/include and DIR/lib --without-libiconv-prefix don't search for libiconv in includedir and libdir --with-system-libunwind use installed libunwind + --with-long-double-128 Use 128-bit long double by default. --with-gc={page,zone} choose the garbage collection mechanism to use with the compiler --with-system-zlib use installed libz @@ -7612,7 +7613,7 @@ if test "${gcc_cv_prog_makeinfo_modern+set}" = set; then else ac_prog_version=`$MAKEINFO --version 2>&1 | sed -n 's/^.*GNU texinfo.* \([0-9][0-9.]*\).*$/\1/p'` - echo "configure:7615: version of makeinfo is $ac_prog_version" >&5 + echo "configure:7616: version of makeinfo is $ac_prog_version" >&5 case $ac_prog_version in '') gcc_cv_prog_makeinfo_modern=no;; 4.[4-9]*) @@ -15675,6 +15676,46 @@ _ACEOF fi +# Check if TFmode long double should be used by default or not. +# Some glibc targets used DFmode long double, but with glibc 2.4 +# and later they can use TFmode. +case "$target" in + powerpc*-*-*gnu* | \ + sparc*-*-linux* | \ + s390*-*-linux* | \ + alpha*-*-linux*) + +# Check whether --with-long-double-128 or --without-long-double-128 was given. +if test "${with_long_double_128+set}" = set; then + withval="$with_long_double_128" + gcc_cv_target_ldbl128="$with_long_double_128" +else + gcc_cv_target_ldbl128=no + if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then + if test "x$with_sysroot" = x; then + glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" + elif test "x$with_sysroot" = xyes; then + glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" + else + glibc_header_dir="${with_sysroot}/usr/include" + fi + else + glibc_header_dir=/usr/include + fi + grep '^ *#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ + $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \ + && gcc_cv_target_ldbl128=yes +fi; + ;; +esac +if test x$gcc_cv_target_ldbl128 = xyes; then + +cat >>confdefs.h <<\_ACEOF +#define TARGET_DEFAULT_LONG_DOUBLE_128 1 +_ACEOF + +fi + # Find out what GC implementation we want, or may, use. # Check whether --with-gc or --without-gc was given. diff --git a/gcc/configure.ac b/gcc/configure.ac index 7b9a94fea6b0..1b8feabd60de 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -3176,6 +3176,39 @@ if test x$gcc_cv_libc_provides_ssp = xyes; then [Define if your target C library provides stack protector support]) fi +# Check if TFmode long double should be used by default or not. +# Some glibc targets used DFmode long double, but with glibc 2.4 +# and later they can use TFmode. +case "$target" in + powerpc*-*-*gnu* | \ + sparc*-*-linux* | \ + s390*-*-linux* | \ + alpha*-*-linux*) + AC_ARG_WITH(long-double-128, +[ --with-long-double-128 Use 128-bit long double by default.], + gcc_cv_target_ldbl128="$with_long_double_128", + [gcc_cv_target_ldbl128=no + if test x$host != x$target || test "x$TARGET_SYSTEM_ROOT" != x; then + if test "x$with_sysroot" = x; then + glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-include" + elif test "x$with_sysroot" = xyes; then + glibc_header_dir="${exec_prefix}/${target_noncanonical}/sys-root/usr/include" + else + glibc_header_dir="${with_sysroot}/usr/include" + fi + else + glibc_header_dir=/usr/include + fi + grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \ + $glibc_header_dir/bits/wordsize.h > /dev/null 2>&1 \ + && gcc_cv_target_ldbl128=yes]) + ;; +esac +if test x$gcc_cv_target_ldbl128 = xyes; then + AC_DEFINE(TARGET_DEFAULT_LONG_DOUBLE_128, 1, + [Define if TFmode long double should be the default]) +fi + # Find out what GC implementation we want, or may, use. AC_ARG_WITH(gc, [ --with-gc={page,zone} choose the garbage collection mechanism to use diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi index 9ac21eecd877..11da1c809762 100644 --- a/gcc/doc/install.texi +++ b/gcc/doc/install.texi @@ -1259,6 +1259,14 @@ extension. This is enabled by default only on PowerPC GNU/Linux systems. Other systems may also support it, but require the user to specifically enable it. +@item --with-long-double-128 +Specify if @code{long double} type should be 128-bit by default on selected +GNU/Linux architectures. If using @code{--without-long-double-128}, +@code{long double} will be by default 64-bit, the same as @code{double} type. +When neither of these configure options are used, the default will be +128-bit @code{long double} when built against GNU C Library 2.4 and later, +64-bit @code{long double} otherwise. + @end table @subheading Cross-Compiler-Specific Options -- 2.43.5