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* doc/invoke.texi (i386 Options): Document x86-64 options. (i386 and x86-64 Options): Rename i386 options section. * config/i386/i386.h (TARGET_UNWIND_INFO): New. (TARGET_SWITCHES): Add -munwind-info. (MASK_NO_UNWIND_INFO): New. (NO_BUILTIN_SIZE_TYPE, NO_BUILTIN_PTRDIFF_TYPE): Define for biarch compilation. (ASM_OUTPUT_DOUBLE_INT): New. * config/i386/linux64.h: New spec file for Linux x86-64 support. * config.gcc: Fix tm_file settings for x86-64. * config/i386/x86-64.h: New file with OS independent x86-64 definitions. * config/i386/biarch64.h: New file used to configure compiler to biarch/64bit compilation. * config/i386/i386.c: (override_options): Set flags default for 64bit compilation. * i386.c (legitimize_pic_address): Add missing bits of 64bit support. (ix86_expand_int_movcc): Optimize DImode conditional moves with constants on x86_64. (ix86_attr_length_immediate_default): Support MODE_DI. * i386.md (fixdi splitter): Add missing "&& 1" in splitter condition. (indirect_jump, tablejump): Turn into expander. From-SVN: r45946
This directory contains the GNU Compiler Collection (GCC). The GNU Compiler Collection is free software. See the file COPYING for copying permission. The manuals, and some of the runtime libraries, are under different terms; see the individual source files for details. The directory INSTALL contains copies of the installation information as HTML and plain text. The source of this information is gcc/doc/install.texi. The installation information includes details of what is included in the GCC sources and what files GCC installs. See the file gcc/doc/gcc.texi (together with other files that it includes) for usage and porting information. An online readable version of the manual is in the files gcc/doc/gcc.info*. See http://gcc.gnu.org/bugs.html for how to report bugs usefully.