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\\.f64} 5 // RUN: %clang_cc1 %s -emit-llvm -fmath-errno -o - | grep {call.*exp2} 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.*exp2} 8 9 // clang doesn't support this yet. 10 // XFAIL: * 11 12 double exp2(double); 13 14 double t4(unsigned char x) { 15 return exp2(x); 16 } 17
