File: unreachable.c

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// RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
// CHECK-NOT: @unreachable

extern void abort(void) __attribute__((noreturn));
extern int unreachable(void);

int f0(void) {
  return 0;
  unreachable();
}

int f1(int i) {
  goto L0;
  int a = unreachable();
 L0:
  return 0;
}

int f2(int i) {
  goto L0;
  unreachable();
  int a;
  unreachable();
 L0:
  a = i + 1;
  return a;
}

int f3(int i) {
  if (i) {
    return 0;
  } else {
    abort();
  }
  unreachable();
  return 3;
}