test/CodeGen/2008-07-30-implicit-initialization.c

   1 // RUN: clang-cc -triple i386-unknown-unknown --emit-llvm-bc -o - %s | opt --std-compile-opts | llvm-dis > %t &&
   2 // RUN: grep "ret i32" %t | count 2 &&
   3 // RUN: grep "ret i32 0" %t | count 2
   4 // <rdar://problem/6113085>
   5
   6 struct s0 {
   7   int x, y;
   8 };
   9
  10 int f0() {
  11   struct s0 x = {0};
  12   return x.y;
  13 }
  14
  15 #if 0
  16 /* Optimizer isn't smart enough to reduce this since we use
  17    memset. Hrm. */
  18 int f1() {
  19   struct s0 x[2] = { {0} };
  20   return x[1].x;
  21 }
  22 #endif
  23
  24 int f2() {
  25   int x[2] = { 0 };
  26   return x[1];
  27 }
  28