install.texi: Add documentation for --enable-altivec.
2001-12-19 Aldy Hernandez <aldyh@redhat.com>
* doc/install.texi: Add documentation for --enable-altivec.
* config.gcc: Add support for --enable-altivec.
* config/rs6000/altivec.h: New.
* config/rs6000/linuxaltivec.h (SUBSUBTARGET_OVERRIDE_OPTIONS):
Define. Fix typo.
* config/rs6000/rs6000.c (vrsave_operation): Change unspec to
unspec_volatile.
(generate_set_vrsave): Generate the unspec here instead of calling
an .md pattern.
(generate_set_vrsave): Use gen_rtvec.
(rs6000_emit_prologue): Replace call to gen_get_vrsave with
gen_rtx_SET.
* config/rs6000/rs6000.md ("*movsi_internal1"): Add constraints
for setting special registers.
("*set_vrsave_internal"): Use unspec_volatile.
("set_vrsave"): Remove.
("get_vrsave"): Remove.
* config/rs6000/rs6000.h (REG_CLASS_CONTENTS): Add vrsave to
SPECIAL_REGS.
From-SVN: r48194