http://llvm.org/bugs/show_bug.cgi?id=11149
Summary: kernel compiling: size of array is negative
Product: clang
Version: trunk
Platform: PC
OS/Version: Linux
Status: NEW
Severity: normal
Priority: P
Component: -New Bugs
AssignedTo: [email protected]
ReportedBy: [email protected]
CC: [email protected]
When compiling Linux kernel 3.0, gcc accepts this code at -O2 level. But clang
rejects it. Gcc also rejects it at -O0.
void f(int offset) {
((void)sizeof(char[1 - 2*!!(!__builtin_constant_p(offset))]));
}
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