diff --git a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.h b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.h
--- a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.h
+++ b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.h
@@ -25,6 +25,8 @@
                    const MCRegisterInfo &MRI)
       : MCInstPrinter(MAI, MII, MRI) {}
 
+  bool applyTargetSpecificCLOption(StringRef Opt) override;
+
   void printInst(const MCInst *MI, raw_ostream &O, StringRef Annot,
                  const MCSubtargetInfo &STI) override;
   void printRegName(raw_ostream &O, unsigned RegNo) const override;
diff --git a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.cpp b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.cpp
--- a/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.cpp
+++ b/llvm/lib/Target/RISCV/MCTargetDesc/RISCVInstPrinter.cpp
@@ -45,6 +45,24 @@
                           "ABI names (such as x2 instead of sp)"),
                  cl::init(false), cl::Hidden);
 
+// The command-line flags above are used by llvm-mc and llc. They can be used by
+// `llvm-objdump`, but we override their values here to handle options passed to
+// `llvm-objdump` with `-M` (which matches GNU objdump). There did not seem to
+// be an easier way to allow these options in all these tools, without doing it
+// this way.
+bool RISCVInstPrinter::applyTargetSpecificCLOption(StringRef Opt) {
+  if (Opt == "no-aliases") {
+    NoAliases = true;
+    return true;
+  }
+  if (Opt == "numeric") {
+    ArchRegNames = true;
+    return true;
+  }
+
+  return false;
+}
+
 void RISCVInstPrinter::printInst(const MCInst *MI, raw_ostream &O,
                                  StringRef Annot, const MCSubtargetInfo &STI) {
   bool Res = false;
diff --git a/llvm/test/CodeGen/RISCV/compress-inline-asm.ll b/llvm/test/CodeGen/RISCV/compress-inline-asm.ll
--- a/llvm/test/CodeGen/RISCV/compress-inline-asm.ll
+++ b/llvm/test/CodeGen/RISCV/compress-inline-asm.ll
@@ -1,5 +1,5 @@
 ; RUN: llc -mtriple=riscv32 -mattr=+c  -filetype=obj < %s\
-; RUN: | llvm-objdump -triple=riscv32 -mattr=+c -d -riscv-no-aliases -\
+; RUN: | llvm-objdump -triple=riscv32 -mattr=+c -d -M no-aliases -\
 ; RUN: | FileCheck -check-prefix=CHECK %s
 
 @ext = external global i32
diff --git a/llvm/test/CodeGen/RISCV/compress.ll b/llvm/test/CodeGen/RISCV/compress.ll
--- a/llvm/test/CodeGen/RISCV/compress.ll
+++ b/llvm/test/CodeGen/RISCV/compress.ll
@@ -1,6 +1,6 @@
 ; RUN: llc -mtriple=riscv32 -mattr=+c -filetype=obj \
 ; RUN:   -disable-block-placement < %s \
-; RUN:   | llvm-objdump -d -triple=riscv32 -mattr=+c -riscv-no-aliases - \
+; RUN:   | llvm-objdump -d -triple=riscv32 -mattr=+c -M no-aliases - \
 ; RUN:   | FileCheck -check-prefix=RV32IC %s
 
 ; This acts as a sanity check for the codegen instruction compression path,
diff --git a/llvm/test/CodeGen/RISCV/option-norvc.ll b/llvm/test/CodeGen/RISCV/option-norvc.ll
--- a/llvm/test/CodeGen/RISCV/option-norvc.ll
+++ b/llvm/test/CodeGen/RISCV/option-norvc.ll
@@ -1,5 +1,5 @@
 ; RUN: llc -mtriple=riscv32 -mattr=+c  -filetype=obj < %s\
-; RUN: | llvm-objdump -triple=riscv32 -mattr=+c -d -riscv-no-aliases -\
+; RUN: | llvm-objdump -triple=riscv32 -mattr=+c -d -M no-aliases -\
 ; RUN: | FileCheck -check-prefix=CHECK %s
 
 ; This test demonstrates that .option norvc has no effect on codegen when
diff --git a/llvm/test/CodeGen/RISCV/option-rvc.ll b/llvm/test/CodeGen/RISCV/option-rvc.ll
--- a/llvm/test/CodeGen/RISCV/option-rvc.ll
+++ b/llvm/test/CodeGen/RISCV/option-rvc.ll
@@ -1,5 +1,5 @@
 ; RUN: llc -mtriple=riscv32 -filetype=obj < %s\
-; RUN: | llvm-objdump -triple=riscv32 -mattr=+c -d -riscv-no-aliases -\
+; RUN: | llvm-objdump -triple=riscv32 -mattr=+c -d -M no-aliases -\
 ; RUN: | FileCheck -check-prefix=CHECK %s
 
 ; This test demonstrates that .option norvc has no effect on codegen when
diff --git a/llvm/test/MC/RISCV/align.s b/llvm/test/MC/RISCV/align.s
--- a/llvm/test/MC/RISCV/align.s
+++ b/llvm/test/MC/RISCV/align.s
@@ -2,28 +2,28 @@
 
 # Relaxation enabled:
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+relax < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=RELAX-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+relax < %s \
 # RUN:     | llvm-readobj -r | FileCheck -check-prefix=RELAX-RELOC %s
 
 # Relaxation disabled:
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=-relax < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=NORELAX-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=-relax < %s \
 # RUN:     | llvm-readobj -r | FileCheck -check-prefix=NORELAX-RELOC %s
 
 # Relaxation enabled with C extension:
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,+relax < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=C-EXT-RELAX-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,+relax < %s \
 # RUN:     | llvm-readobj -r | FileCheck -check-prefix=C-EXT-RELAX-RELOC %s
 
 # Relaxation disabled with C extension:
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,-relax < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=C-EXT-NORELAX-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,-relax < %s \
 # RUN:     | llvm-readobj -r | FileCheck -check-prefix=C-EXT-NORELAX-RELOC %s
diff --git a/llvm/test/MC/RISCV/cnop.s b/llvm/test/MC/RISCV/cnop.s
--- a/llvm/test/MC/RISCV/cnop.s
+++ b/llvm/test/MC/RISCV/cnop.s
@@ -1,5 +1,5 @@
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases  - | FileCheck -check-prefix=CHECK-INST %s
+# RUN:     | llvm-objdump -d -M no-aliases  - | FileCheck -check-prefix=CHECK-INST %s
 
 # alpha and main are 8 byte alignment
 # but the alpha function's size is 6
diff --git a/llvm/test/MC/RISCV/compress-cjal.s b/llvm/test/MC/RISCV/compress-cjal.s
--- a/llvm/test/MC/RISCV/compress-cjal.s
+++ b/llvm/test/MC/RISCV/compress-cjal.s
@@ -6,7 +6,7 @@
 # RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv32 -mattr=+c -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # c.jal is an rv32 only instruction.
diff --git a/llvm/test/MC/RISCV/compress-rv32d.s b/llvm/test/MC/RISCV/compress-rv32d.s
--- a/llvm/test/MC/RISCV/compress-rv32d.s
+++ b/llvm/test/MC/RISCV/compress-rv32d.s
@@ -6,7 +6,7 @@
 # RUN: | llvm-objdump  -triple riscv32 -mattr=+c,+d -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv32 -mattr=+c,+d -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv32 -mattr=+c,+d -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv32 -mattr=+c,+d -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # RUN: llvm-mc -triple riscv64 -mattr=+c,+d -show-encoding < %s \
@@ -17,7 +17,7 @@
 # RUN: | llvm-objdump  -triple riscv64 -mattr=+c,+d -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv64 -mattr=+c,+d -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv64 -mattr=+c,+d -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv64 -mattr=+c,+d -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # Tests double precision floating point instructions available in rv32 and in rv64.
diff --git a/llvm/test/MC/RISCV/compress-rv32f.s b/llvm/test/MC/RISCV/compress-rv32f.s
--- a/llvm/test/MC/RISCV/compress-rv32f.s
+++ b/llvm/test/MC/RISCV/compress-rv32f.s
@@ -6,7 +6,7 @@
 # RUN: | llvm-objdump  -triple riscv32 -mattr=+c,+f -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv32 -mattr=+c,+f -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv32 -mattr=+c,+f -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv32 -mattr=+c,+f -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # Instructions that are 32 bit only.
diff --git a/llvm/test/MC/RISCV/compress-rv32i.s b/llvm/test/MC/RISCV/compress-rv32i.s
--- a/llvm/test/MC/RISCV/compress-rv32i.s
+++ b/llvm/test/MC/RISCV/compress-rv32i.s
@@ -6,7 +6,7 @@
 # RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv32 -mattr=+c -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # RUN: llvm-mc -triple riscv64 -mattr=+c -show-encoding < %s \
@@ -17,7 +17,7 @@
 # RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv64 -mattr=+c -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # CHECK-BYTES: 2e 85
diff --git a/llvm/test/MC/RISCV/compress-rv64i.s b/llvm/test/MC/RISCV/compress-rv64i.s
--- a/llvm/test/MC/RISCV/compress-rv64i.s
+++ b/llvm/test/MC/RISCV/compress-rv64i.s
@@ -6,7 +6,7 @@
 # RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv64 -mattr=+c -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # Tests compressed instructions available in rv64 and not in rv32.
diff --git a/llvm/test/MC/RISCV/csr-aliases.s b/llvm/test/MC/RISCV/csr-aliases.s
--- a/llvm/test/MC/RISCV/csr-aliases.s
+++ b/llvm/test/MC/RISCV/csr-aliases.s
@@ -1,5 +1,5 @@
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+f < %s \
-# RUN:     | llvm-objdump -d -mattr=+f -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+f -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+f < %s \
 # RUN:     | llvm-objdump -d -mattr=+f - \
@@ -18,7 +18,7 @@
 # RUN:     | FileCheck -check-prefix=CHECK-EXT-F-OFF %s
 
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+f < %s \
-# RUN:     | llvm-objdump -d -mattr=+f -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+f -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+f < %s \
 # RUN:     | llvm-objdump -d -mattr=+f - \
diff --git a/llvm/test/MC/RISCV/fixups-compressed.s b/llvm/test/MC/RISCV/fixups-compressed.s
--- a/llvm/test/MC/RISCV/fixups-compressed.s
+++ b/llvm/test/MC/RISCV/fixups-compressed.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple riscv32 -mattr=+c -show-encoding \
 # RUN:     | FileCheck -check-prefix=CHECK-FIXUP %s
 # RUN: llvm-mc -triple riscv32 -filetype=obj -mattr=+c < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=CHECK-INSTR %s
+# RUN:     | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=CHECK-INSTR %s
 # RUN: llvm-mc -filetype=obj -mattr=+c -triple=riscv32 %s \
 # RUN:     | llvm-readobj -r | FileCheck %s -check-prefix=CHECK-REL
 
diff --git a/llvm/test/MC/RISCV/fixups.s b/llvm/test/MC/RISCV/fixups.s
--- a/llvm/test/MC/RISCV/fixups.s
+++ b/llvm/test/MC/RISCV/fixups.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple riscv32 -riscv-no-aliases < %s -show-encoding \
 # RUN:     | FileCheck -check-prefix=CHECK-FIXUP %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefix=CHECK-INSTR %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 %s \
 # RUN:     | llvm-readobj -r | FileCheck %s -check-prefix=CHECK-REL
diff --git a/llvm/test/MC/RISCV/numeric-reg-names-d.s b/llvm/test/MC/RISCV/numeric-reg-names-d.s
--- a/llvm/test/MC/RISCV/numeric-reg-names-d.s
+++ b/llvm/test/MC/RISCV/numeric-reg-names-d.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple riscv32 -mattr=+f,+d < %s -riscv-arch-reg-names \
 # RUN:     | FileCheck -check-prefix=CHECK-NUMERIC %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+f,+d < %s \
-# RUN:     | llvm-objdump -mattr=+f,+d -d -riscv-arch-reg-names - \
+# RUN:     | llvm-objdump -mattr=+f,+d -d -M numeric - \
 # RUN:     | FileCheck -check-prefix=CHECK-NUMERIC %s
 
 # CHECK-NUMERIC: fsqrt.d f10, f0
diff --git a/llvm/test/MC/RISCV/numeric-reg-names-f.s b/llvm/test/MC/RISCV/numeric-reg-names-f.s
--- a/llvm/test/MC/RISCV/numeric-reg-names-f.s
+++ b/llvm/test/MC/RISCV/numeric-reg-names-f.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple riscv32 -mattr=+f < %s -riscv-arch-reg-names \
 # RUN:     | FileCheck -check-prefix=CHECK-NUMERIC %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+f < %s \
-# RUN:     | llvm-objdump -mattr=+f -d -riscv-arch-reg-names - \
+# RUN:     | llvm-objdump -mattr=+f -d -M numeric - \
 # RUN:     | FileCheck -check-prefix=CHECK-NUMERIC %s
 
 # CHECK-NUMERIC: fsqrt.s f10, f0
diff --git a/llvm/test/MC/RISCV/numeric-reg-names.s b/llvm/test/MC/RISCV/numeric-reg-names.s
--- a/llvm/test/MC/RISCV/numeric-reg-names.s
+++ b/llvm/test/MC/RISCV/numeric-reg-names.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple riscv32 < %s -riscv-arch-reg-names \
 # RUN:     | FileCheck -check-prefix=CHECK-NUMERIC %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
-# RUN:     | llvm-objdump -d -riscv-arch-reg-names - \
+# RUN:     | llvm-objdump -d -M numeric - \
 # RUN:     | FileCheck -check-prefix=CHECK-NUMERIC %s
 
 # CHECK-NUMERIC: addi x10, x0, 1
diff --git a/llvm/test/MC/RISCV/option-mix.s b/llvm/test/MC/RISCV/option-mix.s
--- a/llvm/test/MC/RISCV/option-mix.s
+++ b/llvm/test/MC/RISCV/option-mix.s
@@ -1,9 +1,9 @@
 # RUN: llvm-mc %s -triple=riscv32 | FileCheck -check-prefix=ASM %s
 # RUN: llvm-mc %s -triple=riscv64 | FileCheck -check-prefix=ASM %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
-# RUN:   | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=DISASM %s
+# RUN:   | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=DISASM %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
-# RUN:   | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=DISASM %s
+# RUN:   | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=DISASM %s
 
 # Checks change of options does not cause error: could not find corresponding %pcrel_hi 
 # when assembling pseudoinstruction and its extended form.
diff --git a/llvm/test/MC/RISCV/option-rvc.s b/llvm/test/MC/RISCV/option-rvc.s
--- a/llvm/test/MC/RISCV/option-rvc.s
+++ b/llvm/test/MC/RISCV/option-rvc.s
@@ -6,7 +6,7 @@
 # RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv32 -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv32 -mattr=+c -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # RUN: llvm-mc -triple riscv64 -show-encoding < %s \
@@ -17,7 +17,7 @@
 # RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-ALIAS %s
 # RUN: llvm-mc -triple riscv64 -filetype=obj < %s \
-# RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d -riscv-no-aliases - \
+# RUN: | llvm-objdump  -triple riscv64 -mattr=+c -d -M no-aliases - \
 # RUN: | FileCheck -check-prefixes=CHECK-BYTES,CHECK-INST %s
 
 # CHECK-BYTES: 13 85 05 00
diff --git a/llvm/test/MC/RISCV/priv-valid.s b/llvm/test/MC/RISCV/priv-valid.s
--- a/llvm/test/MC/RISCV/priv-valid.s
+++ b/llvm/test/MC/RISCV/priv-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple=riscv64 -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK,CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 
 # CHECK-INST: uret
diff --git a/llvm/test/MC/RISCV/rv32-relaxation.s b/llvm/test/MC/RISCV/rv32-relaxation.s
--- a/llvm/test/MC/RISCV/rv32-relaxation.s
+++ b/llvm/test/MC/RISCV/rv32-relaxation.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=INSTR %s
+# RUN:     | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=INSTR %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,+relax < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=RELAX-INSTR %s
+# RUN:     | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=RELAX-INSTR %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,+relax < %s \
 # RUN:     | llvm-readobj -r | FileCheck -check-prefix=RELAX-RELOC %s
 
diff --git a/llvm/test/MC/RISCV/rv32a-valid.s b/llvm/test/MC/RISCV/rv32a-valid.s
--- a/llvm/test/MC/RISCV/rv32a-valid.s
+++ b/llvm/test/MC/RISCV/rv32a-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+a -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+a < %s \
-# RUN:     | llvm-objdump -mattr=+a -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+a -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+a < %s \
-# RUN:     | llvm-objdump -mattr=+a -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+a -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # CHECK-ASM-AND-OBJ: lr.w t0, (t1)
diff --git a/llvm/test/MC/RISCV/rv32c-aliases-valid.s b/llvm/test/MC/RISCV/rv32c-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv32c-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv32c-aliases-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple=riscv32 -mattr=+c -riscv-no-aliases < %s \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND,CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -M no-aliases - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND,CHECK-INST %s
 
 # The following check prefixes are used in this test:
diff --git a/llvm/test/MC/RISCV/rv32c-only-valid.s b/llvm/test/MC/RISCV/rv32c-only-valid.s
--- a/llvm/test/MC/RISCV/rv32c-only-valid.s
+++ b/llvm/test/MC/RISCV/rv32c-only-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv32 -mattr=+c -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -mattr=+c -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv32 \
diff --git a/llvm/test/MC/RISCV/rv32c-valid.s b/llvm/test/MC/RISCV/rv32c-valid.s
--- a/llvm/test/MC/RISCV/rv32c-valid.s
+++ b/llvm/test/MC/RISCV/rv32c-valid.s
@@ -1,12 +1,12 @@
 # RUN: llvm-mc %s -triple=riscv32 -mattr=+c -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -mattr=+c -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+c -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -mattr=+c -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # TODO: more exhaustive testing of immediate encoding.
diff --git a/llvm/test/MC/RISCV/rv32d-valid.s b/llvm/test/MC/RISCV/rv32d-valid.s
--- a/llvm/test/MC/RISCV/rv32d-valid.s
+++ b/llvm/test/MC/RISCV/rv32d-valid.s
@@ -1,12 +1,12 @@
 # RUN: llvm-mc %s -triple=riscv32 -mattr=+d -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+d < %s \
-# RUN:     | llvm-objdump -mattr=+d -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+d -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+d -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+d < %s \
-# RUN:     | llvm-objdump -mattr=+d -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+d -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # Support for the 'D' extension implies support for 'F'
diff --git a/llvm/test/MC/RISCV/rv32dc-valid.s b/llvm/test/MC/RISCV/rv32dc-valid.s
--- a/llvm/test/MC/RISCV/rv32dc-valid.s
+++ b/llvm/test/MC/RISCV/rv32dc-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv32 -mattr=+c,+d -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+c,+d < %s \
-# RUN:     | llvm-objdump -mattr=+c,+d -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c,+d -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv32 -mattr=+c \
diff --git a/llvm/test/MC/RISCV/rv32e-invalid.s b/llvm/test/MC/RISCV/rv32e-invalid.s
--- a/llvm/test/MC/RISCV/rv32e-invalid.s
+++ b/llvm/test/MC/RISCV/rv32e-invalid.s
@@ -1,6 +1,6 @@
 # RUN: not llvm-mc -triple riscv32 -mattr=+e < %s 2>&1 | FileCheck %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 < %s \
-# RUN:     | llvm-objdump -mattr=+e -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+e -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefix=CHECK-DIS %s
 
 # Perform a simple sanity check that registers x16-x31 (and the equivalent
diff --git a/llvm/test/MC/RISCV/rv32e-valid.s b/llvm/test/MC/RISCV/rv32e-valid.s
--- a/llvm/test/MC/RISCV/rv32e-valid.s
+++ b/llvm/test/MC/RISCV/rv32e-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv32 -riscv-no-aliases -mattr=+e -show-encoding \
 # RUN:     | FileCheck -check-prefix=CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+e < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefix=CHECK-ASM-AND-OBJ %s
 
 # This file provides a basic sanity check for RV32E, checking that the expected
diff --git a/llvm/test/MC/RISCV/rv32f-valid.s b/llvm/test/MC/RISCV/rv32f-valid.s
--- a/llvm/test/MC/RISCV/rv32f-valid.s
+++ b/llvm/test/MC/RISCV/rv32f-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+f -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+f < %s \
-# RUN:     | llvm-objdump -mattr=+f -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+f -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+f < %s \
-# RUN:     | llvm-objdump -mattr=+f -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+f -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # CHECK-ASM-AND-OBJ: flw ft0, 12(a0)
diff --git a/llvm/test/MC/RISCV/rv32fc-aliases-valid.s b/llvm/test/MC/RISCV/rv32fc-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv32fc-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv32fc-aliases-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv32 -mattr=+c,+f -riscv-no-aliases \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,+f < %s \
-# RUN:     | llvm-objdump -mattr=+c,+f -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -mattr=+c,+f -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 
 # CHECK-EXPAND: c.flw fs0, 0(s1)
diff --git a/llvm/test/MC/RISCV/rv32fc-valid.s b/llvm/test/MC/RISCV/rv32fc-valid.s
--- a/llvm/test/MC/RISCV/rv32fc-valid.s
+++ b/llvm/test/MC/RISCV/rv32fc-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv32 -mattr=+c,+f -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+c,+f < %s \
-# RUN:     | llvm-objdump -mattr=+c,+f -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c,+f -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv32 -mattr=+c \
diff --git a/llvm/test/MC/RISCV/rv32i-aliases-valid.s b/llvm/test/MC/RISCV/rv32i-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv32i-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv32i-aliases-valid.s
@@ -3,7 +3,7 @@
 # RUN: llvm-mc %s -triple=riscv32 \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND,CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ-NOALIAS,CHECK-EXPAND,CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
 # RUN:     | llvm-objdump -d -r - \
diff --git a/llvm/test/MC/RISCV/rv32i-valid.s b/llvm/test/MC/RISCV/rv32i-valid.s
--- a/llvm/test/MC/RISCV/rv32i-valid.s
+++ b/llvm/test/MC/RISCV/rv32i-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple riscv64 -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 .equ CONST, 30
diff --git a/llvm/test/MC/RISCV/rv32m-valid.s b/llvm/test/MC/RISCV/rv32m-valid.s
--- a/llvm/test/MC/RISCV/rv32m-valid.s
+++ b/llvm/test/MC/RISCV/rv32m-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+m -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+m < %s \
-# RUN:     | llvm-objdump -mattr=+m -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+m -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+m < %s \
-# RUN:     | llvm-objdump -mattr=+m -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+m -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # CHECK-ASM-AND-OBJ: mul a4, ra, s0
diff --git a/llvm/test/MC/RISCV/rv64-relaxation.s b/llvm/test/MC/RISCV/rv64-relaxation.s
--- a/llvm/test/MC/RISCV/rv64-relaxation.s
+++ b/llvm/test/MC/RISCV/rv64-relaxation.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=INSTR %s
+# RUN:     | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=INSTR %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+c,+relax < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - | FileCheck -check-prefix=RELAX-INSTR %s
+# RUN:     | llvm-objdump -d -M no-aliases - | FileCheck -check-prefix=RELAX-INSTR %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+c,+relax < %s \
 # RUN:     | llvm-readobj -r | FileCheck -check-prefix=RELAX-RELOC %s
 
diff --git a/llvm/test/MC/RISCV/rv64a-aliases-valid.s b/llvm/test/MC/RISCV/rv64a-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv64a-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv64a-aliases-valid.s
@@ -3,7 +3,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+a \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+a < %s \
-# RUN:     | llvm-objdump -d -mattr=+a -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+a -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+a < %s \
 # RUN:     | llvm-objdump -d -mattr=+a - \
diff --git a/llvm/test/MC/RISCV/rv64a-valid.s b/llvm/test/MC/RISCV/rv64a-valid.s
--- a/llvm/test/MC/RISCV/rv64a-valid.s
+++ b/llvm/test/MC/RISCV/rv64a-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+a -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+a < %s \
-# RUN:     | llvm-objdump -mattr=+a -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+a -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv32 -mattr=+a < %s 2>&1 \
diff --git a/llvm/test/MC/RISCV/rv64c-aliases-valid.s b/llvm/test/MC/RISCV/rv64c-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv64c-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv64c-aliases-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc -triple=riscv64 -mattr=+c -riscv-no-aliases < %s \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND,CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -M no-aliases - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND,CHECK-INST %s
 
 # The following check prefixes are used in this test:
diff --git a/llvm/test/MC/RISCV/rv64c-hints-valid.s b/llvm/test/MC/RISCV/rv64c-hints-valid.s
--- a/llvm/test/MC/RISCV/rv64c-hints-valid.s
+++ b/llvm/test/MC/RISCV/rv64c-hints-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple riscv64 -mattr=+c -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # CHECK-ASM-AND-OBJ: c.slli zero, 63
diff --git a/llvm/test/MC/RISCV/rv64c-valid.s b/llvm/test/MC/RISCV/rv64c-valid.s
--- a/llvm/test/MC/RISCV/rv64c-valid.s
+++ b/llvm/test/MC/RISCV/rv64c-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+c -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -mattr=+c -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 #
diff --git a/llvm/test/MC/RISCV/rv64d-aliases-valid.s b/llvm/test/MC/RISCV/rv64d-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv64d-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv64d-aliases-valid.s
@@ -3,7 +3,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+d \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+d < %s \
-# RUN:     | llvm-objdump -d -mattr=+d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+d < %s \
 # RUN:     | llvm-objdump -d -mattr=+d - \
diff --git a/llvm/test/MC/RISCV/rv64d-valid.s b/llvm/test/MC/RISCV/rv64d-valid.s
--- a/llvm/test/MC/RISCV/rv64d-valid.s
+++ b/llvm/test/MC/RISCV/rv64d-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+d -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+d < %s \
-# RUN:     | llvm-objdump -mattr=+d -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+d -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv32 -mattr=+d < %s 2>&1 \
diff --git a/llvm/test/MC/RISCV/rv64dc-valid.s b/llvm/test/MC/RISCV/rv64dc-valid.s
--- a/llvm/test/MC/RISCV/rv64dc-valid.s
+++ b/llvm/test/MC/RISCV/rv64dc-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+c,+d -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+c,+d < %s \
-# RUN:     | llvm-objdump -mattr=+c,+d -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+c,+d -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv64 -mattr=+c \
diff --git a/llvm/test/MC/RISCV/rv64f-aliases-valid.s b/llvm/test/MC/RISCV/rv64f-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv64f-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv64f-aliases-valid.s
@@ -3,7 +3,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+f \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+f < %s \
-# RUN:     | llvm-objdump -d -mattr=+f -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+f -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+f < %s \
 # RUN:     | llvm-objdump -d -mattr=+f - \
diff --git a/llvm/test/MC/RISCV/rv64f-valid.s b/llvm/test/MC/RISCV/rv64f-valid.s
--- a/llvm/test/MC/RISCV/rv64f-valid.s
+++ b/llvm/test/MC/RISCV/rv64f-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+f -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+f < %s \
-# RUN:     | llvm-objdump -mattr=+f -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+f -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 #
 # RUN: not llvm-mc -triple riscv32 -mattr=+f < %s 2>&1 \
diff --git a/llvm/test/MC/RISCV/rv64i-aliases-valid.s b/llvm/test/MC/RISCV/rv64i-aliases-valid.s
--- a/llvm/test/MC/RISCV/rv64i-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rv64i-aliases-valid.s
@@ -3,7 +3,7 @@
 # RUN: llvm-mc %s -triple=riscv64 \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND,CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ-NOALIAS,CHECK-EXPAND,CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
 # RUN:     | llvm-objdump -d - \
diff --git a/llvm/test/MC/RISCV/rv64i-valid.s b/llvm/test/MC/RISCV/rv64i-valid.s
--- a/llvm/test/MC/RISCV/rv64i-valid.s
+++ b/llvm/test/MC/RISCV/rv64i-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 .equ CONST, 31
diff --git a/llvm/test/MC/RISCV/rv64m-valid.s b/llvm/test/MC/RISCV/rv64m-valid.s
--- a/llvm/test/MC/RISCV/rv64m-valid.s
+++ b/llvm/test/MC/RISCV/rv64m-valid.s
@@ -1,7 +1,7 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+m -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+m < %s \
-# RUN:     | llvm-objdump -mattr=+m -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -mattr=+m -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # CHECK-ASM-AND-OBJ: mulw ra, sp, gp
diff --git a/llvm/test/MC/RISCV/rva-aliases-valid.s b/llvm/test/MC/RISCV/rva-aliases-valid.s
--- a/llvm/test/MC/RISCV/rva-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rva-aliases-valid.s
@@ -7,13 +7,13 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+a \
 # RUN:     | FileCheck -check-prefixes=CHECK-S,CHECK-S-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+a < %s \
-# RUN:     | llvm-objdump -d -mattr=+a -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+a -M no-aliases - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ-NOALIAS,CHECK-S-OBJ-NOALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+a < %s \
 # RUN:     | llvm-objdump -d -mattr=+a - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-S-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+a < %s \
-# RUN:     | llvm-objdump -d -mattr=+a -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+a -M no-aliases - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ-NOALIAS,CHECK-S-OBJ-NOALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+a < %s \
 # RUN:     | llvm-objdump -d -mattr=+a - \
diff --git a/llvm/test/MC/RISCV/rvc-aliases-valid.s b/llvm/test/MC/RISCV/rvc-aliases-valid.s
--- a/llvm/test/MC/RISCV/rvc-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rvc-aliases-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+c -riscv-no-aliases \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 
 # CHECK-EXPAND: c.lw s0, 0(s1)
diff --git a/llvm/test/MC/RISCV/rvc-hints-valid.s b/llvm/test/MC/RISCV/rvc-hints-valid.s
--- a/llvm/test/MC/RISCV/rvc-hints-valid.s
+++ b/llvm/test/MC/RISCV/rvc-hints-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple riscv64 -mattr=+c -riscv-no-aliases -show-encoding \
 # RUN:     | FileCheck -check-prefixes=CHECK-ASM,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv32 -mattr=+c < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple=riscv64 -mattr=+c < %s \
-# RUN:     | llvm-objdump -riscv-no-aliases -d -r - \
+# RUN:     | llvm-objdump -M no-aliases -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-ASM-AND-OBJ %s
 
 # CHECK-ASM-AND-OBJ: c.nop 8
diff --git a/llvm/test/MC/RISCV/rvd-aliases-valid.s b/llvm/test/MC/RISCV/rvd-aliases-valid.s
--- a/llvm/test/MC/RISCV/rvd-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rvd-aliases-valid.s
@@ -7,13 +7,13 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+d \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+d < %s \
-# RUN:     | llvm-objdump -d -mattr=+d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+d < %s \
 # RUN:     | llvm-objdump -d -mattr=+d - \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+d < %s \
-# RUN:     | llvm-objdump -d -mattr=+d -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+d -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+d < %s \
 # RUN:     | llvm-objdump -d -mattr=+d - \
diff --git a/llvm/test/MC/RISCV/rvdc-aliases-valid.s b/llvm/test/MC/RISCV/rvdc-aliases-valid.s
--- a/llvm/test/MC/RISCV/rvdc-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rvdc-aliases-valid.s
@@ -3,10 +3,10 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+c,+d -riscv-no-aliases \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+c,+d < %s \
-# RUN:     | llvm-objdump -mattr=+c,+d -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -mattr=+c,+d -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+c,+d < %s \
-# RUN:     | llvm-objdump -mattr=+c,+d -riscv-no-aliases -d - \
+# RUN:     | llvm-objdump -mattr=+c,+d -M no-aliases -d - \
 # RUN:     | FileCheck -check-prefixes=CHECK-EXPAND %s
 
 c.fld f8, (x9)
diff --git a/llvm/test/MC/RISCV/rvf-aliases-valid.s b/llvm/test/MC/RISCV/rvf-aliases-valid.s
--- a/llvm/test/MC/RISCV/rvf-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rvf-aliases-valid.s
@@ -7,13 +7,13 @@
 # RUN: llvm-mc %s -triple=riscv64 -mattr=+f \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+f < %s \
-# RUN:     | llvm-objdump -d -mattr=+f -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+f -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 -mattr=+f < %s \
 # RUN:     | llvm-objdump -d -mattr=+f - \
 # RUN:     | FileCheck -check-prefix=CHECK-ALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+f < %s \
-# RUN:     | llvm-objdump -d -mattr=+f -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -mattr=+f -M no-aliases - \
 # RUN:     | FileCheck -check-prefix=CHECK-INST %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 -mattr=+f < %s \
 # RUN:     | llvm-objdump -d -mattr=+f - \
diff --git a/llvm/test/MC/RISCV/rvi-aliases-valid.s b/llvm/test/MC/RISCV/rvi-aliases-valid.s
--- a/llvm/test/MC/RISCV/rvi-aliases-valid.s
+++ b/llvm/test/MC/RISCV/rvi-aliases-valid.s
@@ -7,13 +7,13 @@
 # RUN: llvm-mc %s -triple=riscv64 \
 # RUN:     | FileCheck -check-prefixes=CHECK-S,CHECK-S-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
-# RUN:     | llvm-objdump -d -r -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -r -M no-aliases - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ-NOALIAS,CHECK-S-OBJ-NOALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv32 < %s \
 # RUN:     | llvm-objdump -d -r - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ,CHECK-S-OBJ %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
-# RUN:     | llvm-objdump -d -r -riscv-no-aliases - \
+# RUN:     | llvm-objdump -d -r -M no-aliases - \
 # RUN:     | FileCheck -check-prefixes=CHECK-OBJ-NOALIAS,CHECK-S-OBJ-NOALIAS %s
 # RUN: llvm-mc -filetype=obj -triple riscv64 < %s \
 # RUN:     | llvm-objdump -d -r - \