[X86] Remove assert in X86MCCodeEmitter.cpp that was added in r320830.

It seems to be failing real code which is concerning, but we were silently getting away with it. I'll investigate further.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320850 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp b/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
index a7059c6914df3e5f3fa62f476fc617d18ff57e7f..272c6f2301459f8d45201c0a3a359e0cced4d371 100644 (file)
--- a/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
+++ b/lib/Target/X86/MCTargetDesc/X86MCCodeEmitter.cpp
@@ -1130,8 +1130,6 @@ bool X86MCCodeEmitter::emitOpcodePrefix(uint64_t TSFlags, unsigned &CurByte,
       EmitByte(0x40 | REX, CurByte, OS);
       Ret = true;
     }
-  } else {
-    assert(!(TSFlags & X86II::REX_W) && "REX.W requires 64bit mode.");
   }
 
   // 0x0F escape code must be emitted just before the opcode.