Removed spurious EnablePPCRS check.

[oota-llvm.git] / lib / Target / X86 / X86Instr64bit.td

diff --git a/lib/Target/X86/X86Instr64bit.td b/lib/Target/X86/X86Instr64bit.td
index 04a76d5d17a5e9b2a84cf2a729819d5577b3a9a8..3002b2c21082d20e2003bb397130fb5d282d656c 100644 (file)
--- a/lib/Target/X86/X86Instr64bit.td
+++ b/lib/Target/X86/X86Instr64bit.td
@@ -1122,6 +1122,37 @@ def MOV64ri64i32 : Ii32<0xB8, AddRegFrm, (outs GR64:$dst), (ins i64i32imm:$src),
                         "mov{l}\t{$src, ${dst:subreg32}|${dst:subreg32}, $src}",
                         [(set GR64:$dst, i64immZExt32:$src)]>;
 
+
+//===----------------------------------------------------------------------===//
+// Atomic Instructions
+//===----------------------------------------------------------------------===//
+
+//FIXME: Please check the format Pseudo is certainly wrong, but the opcode and
+//       prefixes should be correct
+
+let Defs = [RAX, EFLAGS], Uses = [RAX] in {
+def CMPXCHG64 : RI<0xB1, Pseudo, (outs), (ins i64mem:$ptr, GR64:$swap),
+               "cmpxchgq $swap,$ptr", []>, TB;
+def LCMPXCHG64 : RI<0xB1, Pseudo, (outs), (ins i64mem:$ptr, GR64:$swap),
+               "lock cmpxchgq $swap,$ptr",
+               [(X86cas addr:$ptr, GR64:$swap, 8)]>, TB, LOCK;
+}
+
+let Constraints = "$val = $dst", Defs = [EFLAGS] in {
+def LXADD64 : RI<0xC1, Pseudo, (outs GR64:$dst), (ins i64mem:$ptr, GR64:$val),
+               "lock xadd $val, $ptr", 
+               [(set GR64:$dst, (atomic_las_64 addr:$ptr, GR64:$val))]>,
+                TB, LOCK;
+def XADD64 : RI<0xC1, Pseudo, (outs GR64:$dst), (ins i64mem:$ptr, GR64:$val),
+               "xadd $val, $ptr", []>, TB;
+def LXCHG64 : RI<0x87, Pseudo, (outs GR64:$dst), (ins i64mem:$ptr, GR64:$val),
+               "lock xchg $val, $ptr", 
+               [(set GR64:$dst, (atomic_swap_64 addr:$ptr, GR64:$val))]>, LOCK;
+def XCHG64 : RI<0x87, Pseudo, (outs GR64:$dst), (ins i64mem:$ptr, GR64:$val),
+               "xchg $val, $ptr", []>;
+}
+
+
 //===----------------------------------------------------------------------===//
 // Non-Instruction Patterns
 //===----------------------------------------------------------------------===//