[Disassembler] Delete the VStream parameter of MCDisassembler::getInstruction()

The argument is llvm::null() everywhere except llvm::errs() in
llvm-objdump in -DLLVM_ENABLE_ASSERTIONS=On builds. It is used by no
target but X86 in -DLLVM_ENABLE_ASSERTIONS=On builds.

If we ever have the needs to add verbose log to disassemblers, we can
record log with a member function, instead of passing it around as an
argument.

2 files changed, 1 insertions, 2 deletions

diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
index 9388592c887..968d653bd74 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.cpp
@@ -268,7 +268,6 @@ static bool isValidDPP8(const MCInst &MI) {
 DecodeStatus AMDGPUDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
                                                 ArrayRef<uint8_t> Bytes_,
                                                 uint64_t Address,
-                                                raw_ostream &WS,
                                                 raw_ostream &CS) const {
   CommentStream = &CS;
   bool IsSDWA = false;
diff --git a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
index c5eaba615c2..f975af409a0 100644
--- a/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
+++ b/llvm/lib/Target/AMDGPU/Disassembler/AMDGPUDisassembler.h
@@ -53,7 +53,7 @@ public:
 
   DecodeStatus getInstruction(MCInst &MI, uint64_t &Size,
                               ArrayRef<uint8_t> Bytes, uint64_t Address,
-                              raw_ostream &WS, raw_ostream &CS) const override;
+                              raw_ostream &CS) const override;
 
   const char* getRegClassName(unsigned RegClassID) const;