From eb809f562e13603459182a5d1c7b0d0704770e6f Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Fri, 29 Jul 2011 23:01:18 +0000
Subject: [PATCH] Correctly handle scattered operands where the bits of the
 operand are contiguous, but out of order.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136534 91177308-0d34-0410-b5e6-96231b3b80d8
---
 utils/TableGen/FixedLenDecoderEmitter.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/utils/TableGen/FixedLenDecoderEmitter.cpp b/utils/TableGen/FixedLenDecoderEmitter.cpp
index 80910032886..b87634bfee4 100644
--- a/utils/TableGen/FixedLenDecoderEmitter.cpp
+++ b/utils/TableGen/FixedLenDecoderEmitter.cpp
@@ -1295,6 +1295,11 @@ static bool populateInstruction(const CodeGenInstruction &CGI,
         Base = bi;
         Width = 1;
         Offset = BI->getBitNum();
+      } else if (BI->getBitNum() != Offset + Width) {
+        OpInfo.addField(Base, Width, Offset);
+        Base = bi;
+        Width = 1;
+        Offset = BI->getBitNum();
       } else {
         ++Width;
       }