| Issue |
76084
|
| Summary |
unexpected warnings with builtin_dump_struct
|
| Labels |
new issue
|
| Assignees |
|
| Reporter |
BaoshanPang
|
```
$ cat ~/tmp/t.c
int printf (const char *restrict, ...)
__attribute__ ((__format__ (__printf__, 1, 2)));
typedef unsigned char u8;
typedef unsigned char u08;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;
struct llu_dump_test {
u64 a : 4;
u64 b : 56;
u64 c : 4;
};
int main() {
struct llu_dump_test lludump;
__builtin_dump_struct(&lludump, printf);
return 0;
}
$ /home/bpang/mywork/llvm_github/llvm-project/build/bin/clang -c ~/tmp/t.c
/home/bpang/tmp/t.c:19:25: warning: format specifies type 'unsigned long long' but the argument has type 'int' [-Wformat]
19 | __builtin_dump_struct(&lludump, printf);
| ^
/home/bpang/tmp/t.c:19:3: note: in call to printing function with arguments '("%s%s %s : %zu = %llu\n", " ", "u64", "a", 4U, (&lludump)->a)' while dumping struct
19 | __builtin_dump_struct(&lludump, printf);
| ^
/home/bpang/tmp/t.c:19:25: warning: format specifies type 'unsigned long long' but the argument has type 'int' [-Wformat]
19 | __builtin_dump_struct(&lludump, printf);
| ^
/home/bpang/tmp/t.c:19:3: note: in call to printing function with arguments '("%s%s %s : %zu = %llu\n", " ", "u64", "c", 4U, (&lludump)->c)' while dumping struct
19 | __builtin_dump_struct(&lludump, printf);
| ^
2 warnings generated.
```
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