llvm-project/llvm/test/CodeGen/AVR/issue-cannot-select-bswap.ll

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; RUN: llc < %s -march=avr | FileCheck %s
declare i16 @llvm.bswap.i16(i16)
define i16 @foo(i16) {
; CHECK-LABEL: foo:
entry-block:
%1 = tail call i16 @llvm.bswap.i16(i16 %0)
ret i16 %1
}