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1; RUN: llc < %s -mtriple=avr | FileCheck %s2 3define i8 @count_leading_zeros(i8) unnamed_addr {4entry-block:5 %1 = tail call i8 @llvm.ctlz.i8(i8 %0)6 ret i8 %17}8 9declare i8 @llvm.ctlz.i8(i8)10 11; CHECK-LABEL: count_leading_zeros:12; CHECK: cpi [[RESULT:r[0-9]+]], 013; CHECK: breq .LBB0_214; CHECK: mov [[SCRATCH:r[0-9]+]], {{.*}}[[RESULT]]15; CHECK: lsr {{.*}}[[SCRATCH]]16; CHECK: or {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]17; CHECK: mov {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]18; CHECK: lsr {{.*}}[[RESULT]]19; CHECK: lsr {{.*}}[[RESULT]]20; CHECK: or {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]21; CHECK: mov {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]22; CHECK: swap {{.*}}[[SCRATCH]]23; CHECK: andi {{.*}}[[SCRATCH]], 1524; CHECK: or {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]25; CHECK: com {{.*}}[[SCRATCH]]26; CHECK: mov {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]27; CHECK: lsr {{.*}}[[RESULT]]28; CHECK: andi {{.*}}[[RESULT]], 8529; CHECK: sub {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]30; CHECK: mov {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]31; CHECK: andi {{.*}}[[RESULT]], 5132; CHECK: lsr {{.*}}[[SCRATCH]]33; CHECK: lsr {{.*}}[[SCRATCH]]34; CHECK: andi {{.*}}[[SCRATCH]], 5135; CHECK: add {{.*}}[[SCRATCH]], {{.*}}[[RESULT]]36; CHECK: mov {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]37; CHECK: swap {{.*}}[[RESULT]]38; CHECK: add {{.*}}[[RESULT]], {{.*}}[[SCRATCH]]39; CHECK: andi {{.*}}[[RESULT]], 1540; CHECK: ret41; CHECK: LBB0_2:42; CHECK: ldi {{.*}}[[RESULT]], 843; CHECK: ret44