exprs.c revision c3953a61f7e2a9919ce18d418f8b26a8612e87f2 
1// RUN: clang %s -emit-llvm -o -
2
3// PR1895
4// sizeof function
5int zxcv(void);
6int x=sizeof(zxcv);
7int y=__alignof__(zxcv);
8
9
10void *test(int *i) {
11 short a = 1;
12 i += a;
13 i + a;
14 a + i;
15}
16
17_Bool test2b;
18int test2() {if (test2b);}
19
20// PR1921
21int test3() {
22  const unsigned char *bp;
23  bp -= (short)1;
24}
25
26// PR2080 - sizeof void
27int t1 = sizeof(void);
28int t2 = __alignof__(void);
29void test4() {
30  t1 = sizeof(void);
31  t2 = __alignof__(void);
32
33  t1 = sizeof(test4());
34  t2 = __alignof__(test4());
35}
36
37// 'const float' promotes to double in varargs.
38int test5(const float x, float float_number) {
39  return __builtin_isless(x, float_number);
40}
41
42// this one shouldn't fold
43int ola() {
44  int a=2;
45  if ((0, (int)a) & 2) { return 1; }
46  return 2;
47}
48
49// this one shouldn't fold as well
50void eMaisUma() {
51	double t[1];
52	if (*t)
53		return;
54}
55
56// rdar://6520707
57void f0(void (*fp)(void), void (*fp2)(void)) {
58  int x = fp - fp2;
59}
60
61// noop casts as lvalues.
62struct X {
63  int Y;
64};
65struct X foo();
66int bar() {
67  return ((struct X)foo()).Y + 1;
68}
69
70