1*9880d681SAndroid Build Coastguard Worker; RUN: llc -mtriple=arm-eabi -mattr=+v7 %s -o - | FileCheck %s 2*9880d681SAndroid Build Coastguard Worker 3*9880d681SAndroid Build Coastguard Workerdefine i32 @f(i32 %a) nounwind readnone optsize ssp { 4*9880d681SAndroid Build Coastguard Workerentry: 5*9880d681SAndroid Build Coastguard Worker %conv = zext i32 %a to i64 6*9880d681SAndroid Build Coastguard Worker %tmp1 = tail call i64 @llvm.ctlz.i64(i64 %conv, i1 true) 7*9880d681SAndroid Build Coastguard Worker; CHECK: clz 8*9880d681SAndroid Build Coastguard Worker; CHECK-NOT: adds 9*9880d681SAndroid Build Coastguard Worker %cast = trunc i64 %tmp1 to i32 10*9880d681SAndroid Build Coastguard Worker %sub = sub nsw i32 63, %cast 11*9880d681SAndroid Build Coastguard Worker ret i32 %sub 12*9880d681SAndroid Build Coastguard Worker} 13*9880d681SAndroid Build Coastguard Worker 14*9880d681SAndroid Build Coastguard Workerdeclare i64 @llvm.ctlz.i64(i64, i1) nounwind readnone 15