https://bugs.llvm.org/show_bug.cgi?id=48745
Bug ID: 48745
Summary: error: initializer element is not a compile-time
constant for valid code
Product: clang
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: enhancement
Priority: P
Component: -New Bugs
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected],
[email protected], [email protected]
For the following code:
struct wss {
unsigned int count;
unsigned char _have_ct : 1 ;
};
struct capab {
struct wss _wss;
unsigned char _have_type;
};
struct node {
struct capab _capab;
};
struct node nd = {
._capab = {
._have_type = 1,
},
._capab._wss.count = 1, // ERROR!
};
Clang gives error:
clang -emit-llvm test.c -c
error: initializer element is not a compile-time constant
1 error generated.
Code appears to be valid according to struct initialization rules, and gcc
gives no error:
gcc -c test.c
<No error>
Also, error message doesn't show error location in the code.
Versions:
clang --version
clang version 12.0.0 (https://github.com/llvm/llvm-project
f4f158b2f89e16ee7068d6292d2d46457d6932bb)
Target: x86_64-unknown-linux-gnu
Thread model: posix
gcc --version
gcc (GCC) 8.3.1 20190507 (Red Hat 8.3.1-4)
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