When using the 'push' mnemonic for Thumb2 stmdb, be explicit when it's the
32-bit wide version by adding the .w suffix.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@120838 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
index cb4bdac..42f94ee 100644
--- a/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
+++ b/lib/Target/ARM/InstPrinter/ARMInstPrinter.cpp
@@ -67,6 +67,8 @@
       MI->getOperand(0).getReg() == ARM::SP) {
     O << '\t' << "push";
     printPredicateOperand(MI, 2, O);
+    if (Opcode == ARM::t2STMDB_UPD)
+      O << ".w";
     O << '\t';
     printRegisterList(MI, 4, O);
     return;
@@ -77,6 +79,8 @@
       MI->getOperand(0).getReg() == ARM::SP) {
     O << '\t' << "pop";
     printPredicateOperand(MI, 2, O);
+    if (Opcode == ARM::t2LDMIA_UPD)
+      O << ".w";
     O << '\t';
     printRegisterList(MI, 4, O);
     return;