111
|
1 /* PR c/80116 */
|
|
2 /* { dg-options "-Wmultistatement-macros" } */
|
|
3 /* { dg-do compile } */
|
|
4
|
|
5 #define SWAP(x, y) \
|
|
6 tmp = x; /* { dg-warning "macro expands to multiple statements" } */ \
|
|
7 x = y; \
|
|
8 y = tmp
|
|
9
|
|
10 #define M1 \
|
|
11 while (x) /* { dg-message "not guarded by this 'while' claus" } */ \
|
|
12 SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
|
|
13
|
|
14 #define M2 \
|
|
15 while (x) \
|
|
16 x++
|
|
17
|
|
18 #define M3 \
|
|
19 while (x) \
|
|
20 x++;;
|
|
21
|
|
22 #define M4 \
|
|
23 while (x) /* { dg-message "not guarded by this 'while' claus" } */ \
|
|
24 L1: \
|
|
25 SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
|
|
26
|
|
27 #define INC \
|
|
28 x++;;
|
|
29
|
|
30 int x, y, tmp;
|
|
31
|
|
32 void
|
|
33 fn0 (void)
|
|
34 {
|
|
35 while (x) /* { dg-message "not guarded by this 'while' claus" } */
|
|
36 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
|
|
37
|
|
38 while (x) /* { dg-message "not guarded by this 'while' claus" } */
|
|
39 L:
|
|
40 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
|
|
41 goto L;
|
|
42 }
|
|
43
|
|
44 void
|
|
45 fn1 (void)
|
|
46 {
|
|
47 M1; /* { dg-message "in expansion of macro .M1." } */
|
|
48 M2;
|
|
49 M3;
|
|
50 M4; /* { dg-message "in expansion of macro .M4." } */
|
|
51 goto L1;
|
|
52 }
|
|
53
|
|
54 void
|
|
55 fn2 (void)
|
|
56 {
|
|
57 while (x)
|
|
58 INC
|
|
59
|
|
60 while (x)
|
|
61 ({ x = 10; x++; });
|
|
62 }
|