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Rename channel

Rename main to:

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Delete main? This cannot be undone.

inline-asm-invalid.ll
; RUN: not llc < %s -march=avr -no-integrated-as 2>&1 | FileCheck %s

define void @foo(i16 %a) {
  ; CHECK: error: invalid operand in inline asm: 'jl ${0:l}'
  %i.addr = alloca i32, align 4
  call void asm sideeffect "jl ${0:l}", "*m"(i32* elementtype(i32) %i.addr)

  ret void
}