R600/SI: Move gds operand to the end of operand list

Also print it in the assembly string.

llvm-svn: 231684
diff --git a/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp b/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp
index 46630d0..3d96fe5 100644
--- a/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/R600/SILoadStoreOptimizer.cpp
@@ -249,10 +249,10 @@
   DebugLoc DL = I->getDebugLoc();
   MachineInstrBuilder Read2
     = BuildMI(*MBB, I, DL, Read2Desc, DestReg)
-    .addImm(0) // gds
     .addOperand(*AddrReg) // addr
     .addImm(NewOffset0) // offset0
     .addImm(NewOffset1) // offset1
+    .addImm(0) // gds
     .addOperand(*M0Reg) // M0
     .addMemOperand(*I->memoperands_begin())
     .addMemOperand(*Paired->memoperands_begin());
@@ -332,12 +332,12 @@
 
   MachineInstrBuilder Write2
     = BuildMI(*MBB, I, DL, Write2Desc)
-    .addImm(0) // gds
     .addOperand(*Addr) // addr
     .addOperand(*Data0) // data0
     .addOperand(*Data1) // data1
     .addImm(NewOffset0) // offset0
     .addImm(NewOffset1) // offset1
+    .addImm(0) // gds
     .addOperand(*M0Reg)  // m0
     .addMemOperand(*I->memoperands_begin())
     .addMemOperand(*Paired->memoperands_begin());