Crash in Sema with non-constant offsetof

[efriedma-quic]

Bugzilla Link	3396
Resolution	FIXED
Resolved on	Mar 12, 2010 00:57
Version	unspecified
OS	Linux

Extended Description

Testcase:

struct sockaddr_un {
unsigned char sun_len;
char sun_path[104];
};
int a() {
int a[__builtin_offsetof(struct sockaddr_un, sun_path[len+1])];
}

Crashes with the following message:
clang: /home/eli/llvm/tools/clang/lib/CodeGen/../../include/clang/AST/Expr.h:169: llvm::APSInt clang::Expr::getIntegerConstantExprValue(clang::ASTContext&) const: Assertion `success && "Illegal argument to getIntegerConstantExpr"' failed.

Note that non-constant offsetof is a gcc extension.

[llvmbot]

*** Bug llvm/llvm-bugzilla-archive#3622 has been marked as a duplicate of this bug. ***

[efriedma-quic]

This was fixed in r65622.

[llvmbot]

mentioned in issue llvm/llvm-bugzilla-archive#3622