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1// llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't2// and -fno-builtins shouldn't.3// -fno-math-errno should emit an llvm intrinsic, -fmath-errno should not.4// RUN: %clang_cc1 %s -emit-llvm -fno-math-errno -o - | grep {call.*exp2\\..*f}5// RUN: %clang_cc1 %s -emit-llvm -fmath-errno -o - | grep {call.*exp2l}6// RUN: %clang_cc1 %s -emit-llvm -O1 -o - | grep {call.*ldexp}7// RUN: %clang_cc1 %s -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2l}8 9// clang doesn't support this yet.10// XFAIL: *11 12// If this fails for you because your target doesn't support long double,13// please xfail the test.14 15long double exp2l(long double);16 17long double t4(unsigned char x) {18 return exp2l(x);19}20