test/FrontendC/libcalls.c

   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: %llvmgcc %s -S -emit-llvm -fno-math-errno -O0 -o - | grep {call.*exp2\\.f32}
   5 // RUN: %llvmgcc %s -S -emit-llvm -fmath-errno -O0 -o - | grep {call.*exp2f}
   6 // RUN: %llvmgcc %s -S -emit-llvm -O1 -o - | grep {call.*ldexp}
   7 // RUN: %llvmgcc %s -S -emit-llvm -O3 -fno-builtin -o - | grep {call.*exp2f}
   8
   9 float exp2f(float);
  10
  11 float t4(unsigned char x) {
  12   return exp2f(x);
  13 }
  14