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comparison gcc/testsuite/c-c++-common/Wmultistatement-macros-8.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
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 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */ \
12 SWAP (x, y) /* { dg-message "in expansion of macro .SWAP." } */
13
14 #define M2 \
15 for (i = 0; i < 1; ++i) \
16 x++
17
18 #define M3 \
19 for (i = 0; i < 1; ++i) \
20 x++;;
21
22 #define M4 \
23 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */ \
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 int i;
36 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */
37 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
38
39 for (i = 0; i < 1; ++i) /* { dg-message "not guarded by this 'for' clause" } */
40 L:
41 SWAP (x, y); /* { dg-message "in expansion of macro .SWAP." } */
42 goto L;
43 }
44
45 void
46 fn1 (void)
47 {
48 int i;
49 M1; /* { dg-message "in expansion of macro .M1." } */
50 M2;
51 M3;
52 M4; /* { dg-message "in expansion of macro .M4." } */
53 goto L1;
54 }
55
56 void
57 fn2 (void)
58 {
59 for (int i = 0; i < 1; ++i)
60 INC
61
62 for (int i = 0; i < 1; ++i)
63 ({ x = 10; x++; });
64 }