| //@ build-pass |
| //@ compile-flags: --crate-type=rlib --emit=llvm-ir -Cno-prepopulate-passes |
| |
| // This test declares globals by the same name with different types, which |
| // caused problems because Module::getOrInsertGlobal would return a Constant* |
| // bitcast instead of a GlobalVariable* that could access linkage/visibility. |
| // In alt builds with LLVM assertions this would fail: |
| // |
| // rustc: /checkout/src/llvm-project/llvm/include/llvm/Support/Casting.h:269: |
| // typename cast_retty<X, Y *>::ret_type llvm::cast(Y *) [X = llvm::GlobalValue, Y = llvm::Value]: |
| // Assertion `isa<X>(Val) && "cast<Ty>() argument of incompatible type!"' failed. |
| // |
| // In regular builds, the bad cast was UB, like "Invalid LLVMRustVisibility value!" |
| |
| #![allow(dropping_copy_types)] |
| |
| pub mod before { |
| #[no_mangle] |
| pub static GLOBAL1: [u8; 1] = [1]; |
| } |
| |
| pub mod inner { |
| extern "C" { |
| pub static GLOBAL1: u8; |
| pub static GLOBAL2: u8; |
| } |
| |
| pub fn call() { |
| drop(unsafe { (GLOBAL1, GLOBAL2) }); |
| } |
| } |
| |
| pub mod after { |
| #[no_mangle] |
| pub static GLOBAL2: [u8; 1] = [2]; |
| } |
