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authorUneven Prankster <unevenprankster@protonmail.com>2023-07-12 13:22:29 -0300
committerUneven Prankster <unevenprankster@protonmail.com>2023-07-12 13:22:29 -0300
commitfa2bdd711212ba6b7a94a20971e8bfa281e73296 (patch)
tree6713b3c0379507d49558287b71dd360ce188a2f0 /tinycc/tests/tests2/119_random_stuff.c
lol
Diffstat (limited to 'tinycc/tests/tests2/119_random_stuff.c')
-rw-r--r--tinycc/tests/tests2/119_random_stuff.c120
1 files changed, 120 insertions, 0 deletions
diff --git a/tinycc/tests/tests2/119_random_stuff.c b/tinycc/tests/tests2/119_random_stuff.c
new file mode 100644
index 0000000..0b7a4e5
--- /dev/null
+++ b/tinycc/tests/tests2/119_random_stuff.c
@@ -0,0 +1,120 @@
+#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);
+}
+
+struct {
+ int (*print)(const char *format, ...);
+} tst_indir = {
+ printf
+};
+
+void tst_indir_func(void)
+{
+ tst_indir.print("tst_indir_func %d\n", 10);
+}
+
+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();
+ tst_indir_func();
+}