+#
+# a Helper node for frame-climbing, needed for __builtin_(frame|return)_address
+#
+# PS: try gcc __builtin_frame_address(100000) :-)
+#
+ClimbFrame => {
+ reg_req => { in => [ "gp", "gp", "gp"], out => [ "in_r3" ] },
+ ins => [ "frame", "cnt", "tmp" ],
+ outs => [ "res" ],
+ latency => 4, # random number
+ attr_type => "ia32_climbframe_attr_t",
+ attr => "unsigned count",
+ units => [ "GP" ],
+ mode => $mode_gp
+},
+
+#
+# bswap
+#
+Bswap => {
+ irn_flags => "R",
+ reg_req => { in => [ "gp" ],
+ out => [ "in_r1" ] },
+ emit => '. bswap%M %S0',
+ ins => [ "val" ],
+ units => [ "GP" ],
+ latency => 1,
+ mode => $mode_gp,
+},
+
+#
+# bswap16, use xchg here
+#
+Bswap16 => {
+ irn_flags => "R",
+ reg_req => { in => [ "eax ebx ecx edx" ],
+ out => [ "in_r1" ] },
+ emit => '. xchg %SB0, %SH0',
+ ins => [ "val" ],
+ units => [ "GP" ],
+ latency => 1,
+ mode => $mode_gp,
+},
+
+#
+# BreakPoint
+#
+Breakpoint => {
+ state => "pinned",
+ reg_req => { in => [ "none" ], out => [ "none" ] },
+ ins => [ "mem" ],
+ latency => 0,
+ emit => ". int3",
+ units => [ "GP" ],
+ mode => mode_M,
+},
+
+#
+# Intel style prefetching
+#
+Prefetch0 => {
+ op_flags => "L|F",
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
+ ins => [ "base", "index", "mem" ],
+ outs => [ "M" ],
+ latency => 0,
+ emit => ". prefetcht0 %AM",
+ units => [ "GP" ],
+},
+
+Prefetch1 => {
+ op_flags => "L|F",
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
+ ins => [ "base", "index", "mem" ],
+ outs => [ "M" ],
+ latency => 0,
+ emit => ". prefetcht1 %AM",
+ units => [ "GP" ],
+},
+
+Prefetch2 => {
+ op_flags => "L|F",
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
+ ins => [ "base", "index", "mem" ],
+ outs => [ "M" ],
+ latency => 0,
+ emit => ". prefetcht2 %AM",
+ units => [ "GP" ],
+},
+
+PrefetchNTA => {
+ op_flags => "L|F",
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
+ ins => [ "base", "index", "mem" ],
+ outs => [ "M" ],
+ latency => 0,
+ emit => ". prefetchnta %AM",
+ units => [ "GP" ],
+},
+
+#
+# 3DNow! prefetch instructions
+#
+Prefetch => {
+ op_flags => "L|F",
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
+ ins => [ "base", "index", "mem" ],
+ outs => [ "M" ],
+ latency => 0,
+ emit => ". prefetch %AM",
+ units => [ "GP" ],
+},
+
+PrefetchW => {
+ op_flags => "L|F",
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none" ], out => [ "none" ] },
+ ins => [ "base", "index", "mem" ],
+ outs => [ "M" ],
+ latency => 0,
+ emit => ". prefetchw %AM",
+ units => [ "GP" ],
+},
+