+#
+# BT supports source address mode, but this is unused yet
+#
+Bt => {
+ irn_flags => [ "rematerializable" ],
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp" ], out => [ "flags" ] },
+ ins => [ "left", "right" ],
+ emit => '. bt%M %S1, %S0',
+ units => [ "GP" ],
+ latency => 1,
+ mode => $mode_flags,
+ modified_flags => $status_flags # only CF is set, but the other flags are undefined
+},
+
+Bsf => {
+ irn_flags => [ "rematerializable" ],
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none", "gp" ],
+ out => [ "gp", "flags", "none" ] },
+ ins => [ "base", "index", "mem", "operand" ],
+ outs => [ "res", "flags", "M" ],
+ am => "source,binary",
+ emit => '. bsf%M %unop3, %D0',
+ units => [ "GP" ],
+ latency => 1,
+ mode => $mode_gp,
+ modified_flags => $status_flags
+},
+
+Bsr => {
+ irn_flags => [ "rematerializable" ],
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none", "gp" ],
+ out => [ "gp", "flags", "none" ] },
+ ins => [ "base", "index", "mem", "operand" ],
+ outs => [ "res", "flags", "M" ],
+ am => "source,binary",
+ emit => '. bsr%M %unop3, %D0',
+ units => [ "GP" ],
+ latency => 1,
+ mode => $mode_gp,
+ modified_flags => $status_flags
+},
+
+#
+# SSE4.2 or SSE4a popcnt instruction
+#
+Popcnt => {
+ irn_flags => [ "rematerializable" ],
+ state => "exc_pinned",
+ reg_req => { in => [ "gp", "gp", "none", "gp" ],
+ out => [ "gp", "flags", "none" ] },
+ ins => [ "base", "index", "mem", "operand" ],
+ outs => [ "res", "flags", "M" ],
+ am => "source,binary",
+ emit => '. popcnt%M %unop3, %D0',
+ units => [ "GP" ],
+ latency => 1,
+ mode => $mode_gp,
+ modified_flags => $status_flags
+},
+
+Call => {
+ op_flags => [ "uses_memory", "fragile" ],
+ state => "exc_pinned",
+ reg_req => {
+ in => [ "gp", "gp", "none", "gp", "esp", "fpcw", "eax", "ecx", "edx" ],
+ out => [ "esp:I|S", "fpcw:I", "none", "eax", "ecx", "edx", "vf0", "vf1", "vf2", "vf3", "vf4", "vf5", "vf6", "vf7", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7", "none", "none" ]
+ },
+ ins => [ "base", "index", "mem", "addr", "stack", "fpcw", "eax", "ecx", "edx" ],
+ outs => [ "stack", "fpcw", "M", "eax", "ecx", "edx", "vf0", "vf1", "vf2", "vf3", "vf4", "vf5", "vf6", "vf7", "xmm0", "xmm1", "xmm2", "xmm3", "xmm4", "xmm5", "xmm6", "xmm7", "X_regular", "X_except" ],
+ attr_type => "ia32_call_attr_t",
+ attr => "unsigned pop, ir_type *call_tp",
+ am => "source,unary",
+ units => [ "BRANCH" ],
+ latency => 4, # random number
+ modified_flags => $status_flags
+},
+
+#
+# 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 => [ "rematerializable" ],
+ 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 => [ "rematerializable" ],
+ 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",