fix some bugs in the alias support, unblocking changing of "clr" aliases
from c++ hacks to proper .td InstAlias definitions. Change them!
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118330 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index ad3fe15..fdb17a1 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -1370,6 +1370,12 @@
// Assembler Instruction Aliases
//===----------------------------------------------------------------------===//
+// clr aliases.
+def : InstAlias<"clrb $reg", (XOR8rr GR8 :$reg, GR8 :$reg)>;
+def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
+def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
+def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
+
// movsx aliases
def : InstAlias<"movsx $src, $dst",
(MOVSX16rr8W GR16:$dst, GR8:$src)>;