clang/test/CodeGen/indirect-goto.c

   1 // RUN: %clang_cc1 -triple x86_64-unknown-unknown -O3 -emit-llvm -o - %s | grep "ret i32 2520"
   2
   3 static int foo(unsigned i) {
   4   void *addrs[] = { &&L1, &&L2, &&L3, &&L4, &&L5 };
   5   int res = 1;
   6
   7   goto *addrs[i];
   8  L5: res *= 11;
   9  L4: res *= 7;
  10  L3: res *= 5;
  11  L2: res *= 3;
  12  L1: res *= 2;
  13   return res;
  14 }
  15
  16 static int foo2(unsigned i) {
  17   static const void *addrs[] = { &&L1, &&L2, &&L3, &&L4, &&L5 };
  18   int res = 1;
  19
  20   goto *addrs[i];
  21 L5: res *= 11;
  22 L4: res *= 7;
  23 L3: res *= 5;
  24 L2: res *= 3;
  25 L1: res *= 2;
  26   return res;
  27 }
  28
  29 int main(void) {
  30   return foo(3)+foo2(4);
  31 }