[X86][MemFold] Stop emitting Header for X86 fold tables

Reviewed By: skan

Differential Revision: https://reviews.llvm.org/D146502

Author: yubingex007-a11y

llvm/test/TableGen/x86-auto-memfold.td

@@ -1,2 +1,2 @@
 // RUN: llvm-tblgen -gen-x86-fold-tables -asmwriternum=1 %p/../../lib/Target/X86/X86.td -I %p/../../include -I %p/../../lib/Target/X86/ -I %p/../../include/ -I %p/../../lib/Target/ --write-if-changed  -o %t1
-// RUN: cmp  --ignore-initial=0:568 %p/../../lib/Target/X86/X86MemFoldTables.inc %t1
+// RUN: cmp %p/../../lib/Target/X86/X86MemFoldTables.inc %t1

llvm/utils/TableGen/X86FoldTablesEmitter.cpp

@@ -523,7 +523,6 @@ void X86FoldTablesEmitter::updateTables(const CodeGenInstruction *RegInstr,
 
 void X86FoldTablesEmitter::run(raw_ostream &o) {
   formatted_raw_ostream OS(o);
-  emitSourceFileHeader("X86 fold tables", OS);
 
   // Holds all memory instructions
   std::vector<const CodeGenInstruction *> MemInsts;