test/CodeGen/available-externally-suppress.c

   1 // RUN: %clang_cc1 -emit-llvm -o - -O0 -triple x86_64-apple-darwin10 %s | FileCheck %s
   2
   3 // Ensure that we don't emit available_externally functions at -O0.
   4 int x;
   5
   6 inline void f0(int y) { x = y; }
   7
   8 // CHECK: define void @test()
   9 // CHECK: declare void @f0(i32)
  10 void test() {
  11   f0(17);
  12 }
  13
  14 inline int __attribute__((always_inline)) f1(int x) {
  15   int blarg = 0;
  16   for (int i = 0; i < x; ++i)
  17     blarg = blarg + x * i;
  18   return blarg;
  19 }
  20
  21 // CHECK: @test1
  22 int test1(int x) {
  23   // CHECK: br i1
  24   // CHECK-NOT: call
  25   // CHECK: ret i32
  26   return f1(x);
  27 }