[X86] Remove unnecessary duplicate code (PR30649). NFCI.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@298495 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.cpp b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.cpp
index 88fab4b..b7f637e 100644 (file)
--- a/lib/Target/X86/Disassembler/X86DisassemblerDecoder.cpp
+++ b/lib/Target/X86/Disassembler/X86DisassemblerDecoder.cpp
@@ -650,11 +650,6 @@ static int readPrefixes(struct InternalInstruction* insn) {
       insn->addressSize        = (hasAdSize ? 4 : 8);
       insn->displacementSize   = 4;
       insn->immediateSize      = 4;
-    } else if (insn->rexPrefix) {
-      insn->registerSize       = (hasOpSize ? 2 : 4);
-      insn->addressSize        = (hasAdSize ? 4 : 8);
-      insn->displacementSize   = (hasOpSize ? 2 : 4);
-      insn->immediateSize      = (hasOpSize ? 2 : 4);
     } else {
       insn->registerSize       = (hasOpSize ? 2 : 4);
       insn->addressSize        = (hasAdSize ? 4 : 8);