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
15 long double exp2l(long double);
16
t4(unsigned char x)17 long double t4(unsigned char x) {
18 return exp2l(x);
19 }
20