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1; RUN: llc < %s -mtriple=avr | FileCheck %s2 3define i8 @count_trailing_zeros(i8) unnamed_addr {4entry-block:5 %1 = tail call i8 @llvm.cttz.i8(i8 %0)6 ret i8 %17}8 9declare i8 @llvm.cttz.i8(i8)10 11; CHECK-LABEL: count_trailing_zeros:12; CHECK: cpi [[RESULT:r[0-9]+]], 013; CHECK: breq [[END_BB:.LBB[0-9]+_[0-9]+]]14; CHECK: mov [[SCRATCH:r[0-9]+]], {{.*}}[[RESULT]]15; CHECK: dec {{.*}}[[SCRATCH]]16; CHECK: com {{.*}}[[RESULT]]17; CHECK: and {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]18; CHECK: mov {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]19; CHECK: lsr {{.*}}[[SCRATCH]]20; CHECK: andi {{.*}}[[SCRATCH]], 8521; CHECK: sub {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]22; CHECK: mov {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]23; CHECK: andi {{.*}}[[SCRATCH]], 5124; CHECK: lsr {{.*}}[[RESULT]]25; CHECK: lsr {{.*}}[[RESULT]]26; CHECK: andi {{.*}}[[RESULT]], 5127; CHECK: add {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]28; CHECK: mov {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]29; CHECK: swap {{.*}}[[SCRATCH]]30; CHECK: add {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]31; CHECK: mov {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]32; CHECK: andi {{.*}}[[RESULT]], 1533; CHECK: ret34; CHECK: [[END_BB]]:35; CHECK: ldi {{.*}}[[RESULT]], 836; CHECK: ret37