[CodeGen] Print MCSymbol operands as <mcsymbol sym> in both MIR and debug output

Work towards the unification of MIR and debug output by printing
`<mcsymbol sym>` instead of `<MCSym=sym>`.

Only debug syntax is affected.

llvm-svn: 320685

1 files changed, 22 insertions, 0 deletions

diff --git a/llvm/unittests/CodeGen/MachineOperandTest.cpp b/llvm/unittests/CodeGen/MachineOperandTest.cpp
index 192229be065..e51207b9571 100644
--- a/llvm/unittests/CodeGen/MachineOperandTest.cpp
+++ b/llvm/unittests/CodeGen/MachineOperandTest.cpp
@@ -13,6 +13,8 @@
 #include "llvm/IR/LLVMContext.h"
 #include "llvm/IR/Module.h"
 #include "llvm/IR/ModuleSlotTracker.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCAsmInfo.h"
 #include "llvm/Support/raw_ostream.h"
 #include "gtest/gtest.h"
 
@@ -314,4 +316,24 @@ TEST(MachineOperandTest, PrintMetadata) {
   ASSERT_TRUE(OS.str() == "!0");
 }
 
+TEST(MachineOperandTest, PrintMCSymbol) {
+  MCAsmInfo MAI;
+  MCContext Ctx(&MAI, /*MRI=*/nullptr, /*MOFI=*/nullptr);
+  MCSymbol *Sym = Ctx.getOrCreateSymbol("foo");
+
+  // Create a MachineOperand with a metadata and print it.
+  MachineOperand MO = MachineOperand::CreateMCSymbol(Sym);
+
+  // Checking some preconditions on the newly created
+  // MachineOperand.
+  ASSERT_TRUE(MO.isMCSymbol());
+  ASSERT_TRUE(MO.getMCSymbol() == Sym);
+
+  std::string str;
+  // Print a MachineOperand containing a metadata node.
+  raw_string_ostream OS(str);
+  MO.print(OS, /*TRI=*/nullptr, /*IntrinsicInfo=*/nullptr);
+  ASSERT_TRUE(OS.str() == "<mcsymbol foo>");
+}
+
 } // end namespace