move various pattern matching support goop out of X86Instr64Bit, to live
with the 32-bit stuff.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@115602 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/X86/X86InstrCompiler.td b/lib/Target/X86/X86InstrCompiler.td
index 197d1c6..3e2fdd3 100644
--- a/lib/Target/X86/X86InstrCompiler.td
+++ b/lib/Target/X86/X86InstrCompiler.td
@@ -12,6 +12,18 @@
 //
 //===----------------------------------------------------------------------===//
 
+//===----------------------------------------------------------------------===//
+// Pattern Matching Support
+
+def GetLo32XForm : SDNodeXForm<imm, [{
+  // Transformation function: get the low 32 bits.
+  return getI32Imm((unsigned)N->getZExtValue());
+}]>;
+
+
+//===----------------------------------------------------------------------===//
+// Random Pseudo Instructions.
+
 // PIC base construction.  This expands to code that looks like this:
 //     call  $next_inst
 //     popl %destreg"