add clang

05/tcc-final/tests/tests2/119_random_stuff.c

@@ -0,0 +1,108 @@
+#include <stdio.h>
+
+struct big_struct { char a[262144]; };
+
+static const char str[] = "abcdefghijklmnopqrstuvwxyz";
+
+void tst_branch(void)
+{
+  printf("tst_branch --");
+  goto *&&a; 
+  printf (" dummy");
+a: ;
+  printf(" --\n");
+}
+
+void tst_void_ptr(void *pv, int i) 
+{
+  i ? *pv : *pv; // dr106
+}
+
+void tst_shift(void)
+{
+  int i = 1;
+  long long l = 1;
+  i = i << 32; // illegal. just test
+  l = l << 64; // illegal. just test
+}
+
+#if !defined(_WIN32)
+#include <sys/mman.h>
+
+void tst_const_addr(void)
+{
+  void *addr = mmap ((void *)0x20000000, 4096, PROT_READ | PROT_WRITE, MAP_FIXED | MAP_ANONYMOUS, -1, 0);
+  if (addr != (void *) -1) {
+    *(int *)0x20000000 += 42;
+    munmap (addr, 4096);
+  }
+}
+#endif
+
+struct zero_struct {};
+
+struct zero_struct tst_zero_struct(void)
+{
+  struct zero_struct ret;
+  return ret;
+}
+
+struct big_struct tst_big(struct big_struct tst)
+{
+   return tst;
+}
+
+void tst_adr (int (*fp)(char *, const char *, ...))
+{
+  char buf[10];
+  (*fp)(buf, "%.0f", 5.0);
+  printf("tst_adr %s\n", buf);
+}
+
+int tst(void)
+{
+  long long value = 3;
+  return -value;
+}
+
+void tst_compare(void)
+{
+  /* This failed on risc64 */
+  printf ("tst_compare: %s\n", tst() > 0 ? "error" : "ok");
+}
+
+#pragma pack(1)
+struct S { int d:24; int f:14; } i, j;
+#pragma pack()
+
+void tst_pack (void)
+{
+  i.f = 5; j.f = 5;
+  printf("tst_pack: j.f = %d, i.f = %d\n", j.f, i.f);
+}
+
+void tst_cast(void)
+{
+  signed char c = (signed char) 0xaaaaaaaa;
+  int r = (unsigned short) c ^ (signed char) 0x99999999;
+  printf ("schar to ushort cast: %x\n", r);
+}
+
+int
+main (void)
+{
+  struct big_struct big;
+
+  tst_branch();
+  tst_shift();
+  tst_void_ptr(&big.a[0], 0);
+#if !defined(_WIN32)
+  tst_const_addr();
+#endif
+  tst_zero_struct();
+  tst_big(big);
+  tst_adr(&sprintf);
+  tst_compare();
+  tst_pack();
+  tst_cast();
+}