gcc/ * doc/invoke.texi: Document -mlong-double-64/-mlong-double-80. * config/i386/i386.c (flag_opts): Add -mlong-double-64. (TARGET_HAS_BIONIC): Default long double to 64-bit for Bionic. * config/i386/i386.h (LONG_DOUBLE_TYPE_SIZE): Use 64 if TARGET_LONG_DOUBLE_64 is true. (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): New macro. (WIDEST_HARDWARE_FP_SIZE): Defined to 80. * config/i386/i386.opt (mlong-double-80): New option. (mlong-double-64): Likewise. * config/i386/i386-c.c (ix86_target_macros): Define __LONG_DOUBLE_64__ for TARGET_LONG_DOUBLE_64. gcc/testsuite/ * gcc.target/i386/long-double-64-1.c: New file. * gcc.target/i386/long-double-64-2.c: Likewise. * gcc.target/i386/long-double-64-3.c: Likewise. * gcc.target/i386/long-double-64-4.c: Likewise. * gcc.target/i386/long-double-80-1.c: Likewise. * gcc.target/i386/long-double-80-2.c: Likewise. * gcc.target/i386/long-double-80-3.c: Likewise. * gcc.target/i386/long-double-80-4.c: Likewise. * gcc.target/i386/long-double-80-5.c: Likewise. * gcc.target/i386/long-double-80-6.c: Likewise. * gcc.target/i386/long-double-80-7.c: Likewise. libgcc/ * config/i386/t-linux (HOST_LIBGCC2_CFLAGS): New. From-SVN: r190599
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