gcc/ * config/i386/i386.c (flag_opts): Add -mlong-double-128. (ix86_option_override_internal): Default long double to 64-bit for 32-bit Bionic and to 128-bit for 64-bit Bionic. * config/i386/i386.h (LONG_DOUBLE_TYPE_SIZE): Use 128 if TARGET_LONG_DOUBLE_128 is true. (LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Likewise. * config/i386/i386.opt (mlong-double-80): Negate -mlong-double-64. (mlong-double-64): Negate -mlong-double-128. (mlong-double-128): New option. * config/i386/i386-c.c (ix86_target_macros): Define __LONG_DOUBLE_128__ for TARGET_LONG_DOUBLE_128. * doc/invoke.texi: Document -mlong-double-128. gcc/testsuite/ * gcc.target/i386/long-double-64-1.c: Verify __multf3 isn't used. * 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-64-2.c: Limit to ia32. Verify __multf3 isn't used. * gcc.target/i386/long-double-64-3.c: Likewise. * gcc.target/i386/long-double-128-1.c: New test. * gcc.target/i386/long-double-128-2.c: Likewise. * gcc.target/i386/long-double-128-3.c: Likewise. * gcc.target/i386/long-double-128-4.c: Likewise. * gcc.target/i386/long-double-128-5.c: Likewise. * gcc.target/i386/long-double-128-6.c: Likewise. * gcc.target/i386/long-double-128-7.c: Likewise. * gcc.target/i386/long-double-128-8.c: Likewise. * gcc.target/i386/long-double-128-9.c: Likewise. * gcc.target/i386/long-double-64-5.c: Likewise. * gcc.target/i386/long-double-64-6.c: Likewise. * gcc.target/i386/long-double-64-7.c: Likewise. * gcc.target/i386/long-double-64-8.c: Likewise. * gcc.target/i386/long-double-64-9.c: Likewise. * gcc.target/i386/long-double-80-10.c: Likewise. * gcc.target/i386/long-double-80-8.c: Likewise. * gcc.target/i386/long-double-80-9.c: Likewise. From-SVN: r207428
