clang/test/CodeGen/builtin-count-zeros.c


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// RUN: clang -emit-llvm %s -o - | grep 'cttz' | count 2
// RUN: clang -emit-llvm %s -o - | grep 'ctlz' | count 2

int a(int a) {return __builtin_ctz(a) + __builtin_clz(a);}