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1; RUN: llc -mtriple=arm-eabi -mattr=+v7 %s -o - | FileCheck %s2 3define i32 @f(i32 %a) nounwind readnone optsize ssp {4entry:5 %conv = zext i32 %a to i646 %tmp1 = tail call i64 @llvm.ctlz.i64(i64 %conv, i1 true)7; CHECK: clz8; CHECK-NOT: adds9 %cast = trunc i64 %tmp1 to i3210 %sub = sub nsw i32 63, %cast11 ret i32 %sub12}13 14declare i64 @llvm.ctlz.i64(i64, i1) nounwind readnone15