1// llvm-gcc -O1+ should run simplify libcalls, O0 shouldn't 2// 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