[PATCH] D137122: VE: Register null MCTargetStreamer

[Matt Arsenault via Phabricator via llvm-commits]

arsenm created this revision.
arsenm added reviewers: kaz7, simoll.
Herald added a subscriber: hiraditya.
Herald added a project: All.
arsenm requested review of this revision.
Herald added a subscriber: wdng.
Herald added a project: LLVM.

https://reviews.llvm.org/D137122

Files:
  llvm/lib/Target/VE/MCTargetDesc/VEMCTargetDesc.cpp
  llvm/lib/Target/VE/MCTargetDesc/VETargetStreamer.h
  llvm/test/CodeGen/VE/null-mctargetstreamer.ll


Index: llvm/test/CodeGen/VE/null-mctargetstreamer.ll
===================================================================
--- /dev/null
+++ llvm/test/CodeGen/VE/null-mctargetstreamer.ll
@@ -0,0 +1,5 @@
+; RUN: llc -march=ve -filetype=null %s
+
+define void @foo() {
+  ret void
+}
Index: llvm/lib/Target/VE/MCTargetDesc/VETargetStreamer.h
===================================================================
--- llvm/lib/Target/VE/MCTargetDesc/VETargetStreamer.h
+++ llvm/lib/Target/VE/MCTargetDesc/VETargetStreamer.h
@@ -20,9 +20,9 @@
 public:
   VETargetStreamer(MCStreamer &S);
   /// Emit ".register <reg>, #ignore".
-  virtual void emitVERegisterIgnore(unsigned reg) = 0;
+  virtual void emitVERegisterIgnore(unsigned reg){};
   /// Emit ".register <reg>, #scratch".
-  virtual void emitVERegisterScratch(unsigned reg) = 0;
+  virtual void emitVERegisterScratch(unsigned reg){};
 };
 
 // This part is for ascii assembly output
Index: llvm/lib/Target/VE/MCTargetDesc/VEMCTargetDesc.cpp
===================================================================
--- llvm/lib/Target/VE/MCTargetDesc/VEMCTargetDesc.cpp
+++ llvm/lib/Target/VE/MCTargetDesc/VEMCTargetDesc.cpp
@@ -73,6 +73,10 @@
   return new VETargetAsmStreamer(S, OS);
 }
 
+static MCTargetStreamer *createNullTargetStreamer(MCStreamer &S) {
+  return new VETargetStreamer(S);
+}
+
 static MCInstPrinter *createVEMCInstPrinter(const Triple &T,
                                             unsigned SyntaxVariant,
                                             const MCAsmInfo &MAI,
@@ -108,6 +112,9 @@
     // Register the asm streamer.
     TargetRegistry::RegisterAsmTargetStreamer(*T, createTargetAsmStreamer);
 
+    // Register the null streamer.
+    TargetRegistry::RegisterNullTargetStreamer(*T, createNullTargetStreamer);
+
     // Register the MCInstPrinter
     TargetRegistry::RegisterMCInstPrinter(*T, createVEMCInstPrinter);
   }


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