Order CALLSEQ_START and CALLSEQ_END nodes.

Fixes PR16146: gdb.base__call-ar-st.exp fails after
pre-RA-sched=source fixes.

Patch by Xiaoyi Guo!

This also fixes an unsupported dbg.value test case. Codegen was
previously incorrect but the test was passing by luck.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182885 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/Sparc/SparcISelLowering.cpp b/lib/Target/Sparc/SparcISelLowering.cpp
index 8eb8702..561a019 100644
--- a/lib/Target/Sparc/SparcISelLowering.cpp
+++ b/lib/Target/Sparc/SparcISelLowering.cpp
@@ -702,7 +702,8 @@
     ByValArgs.push_back(FIPtr);
   }
 
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true));
+  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true),
+                               dl);
 
   SmallVector<std::pair<unsigned, SDValue>, 8> RegsToPass;
   SmallVector<SDValue, 8> MemOpChains;
@@ -886,7 +887,7 @@
   InFlag = Chain.getValue(1);
 
   Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(ArgsSize, true),
-                             DAG.getIntPtrConstant(0, true), InFlag);
+                             DAG.getIntPtrConstant(0, true), InFlag, dl);
   InFlag = Chain.getValue(1);
 
   // Assign locations to each value returned by this call.
@@ -1004,7 +1005,8 @@
   // Adjust the stack pointer to make room for the arguments.
   // FIXME: Use hasReservedCallFrame to avoid %sp adjustments around all calls
   // with more than 6 arguments.
-  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true));
+  Chain = DAG.getCALLSEQ_START(Chain, DAG.getIntPtrConstant(ArgsSize, true),
+                               DL);
 
   // Collect the set of registers to pass to the function and their values.
   // This will be emitted as a sequence of CopyToReg nodes glued to the call
@@ -1122,7 +1124,7 @@
 
   // Revert the stack pointer immediately after the call.
   Chain = DAG.getCALLSEQ_END(Chain, DAG.getIntPtrConstant(ArgsSize, true),
-                             DAG.getIntPtrConstant(0, true), InGlue);
+                             DAG.getIntPtrConstant(0, true), InGlue, DL);
   InGlue = Chain.getValue(1);
 
   // Now extract the return values. This is more or less the same as