[llvm-bugs] [Bug 33317] New: MIR printer asserts with empty inline asm string

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33317

            Bug ID: 33317
           Summary: MIR printer asserts with empty inline asm string
           Product: tools
           Version: trunk
          Hardware: PC
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P
         Component: llc
          Assignee: unassignedbugs at nondot.org
          Reporter: qcolombet at apple.com
                CC: llvm-bugs at lists.llvm.org

If you try to output MIR for an IR with empty inline asm string, the MIR
printing pass is going to assert with:
Assertion failed: (!Name.empty() && "Cannot get empty name!"), function
printLLVMNameWithoutPrefix, file lib/IR/AsmWriter.cpp, line 362.

E.g.,

define void @toto() {
  call void asm sideeffect "", "~{lr}"() nounwind
  ret void
}

Fails.

define void @toto() {
  call void asm sideeffect "# DUMMY", "~{lr}"() nounwind
  ret void
}

Works

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