accad76c14
When hidden symbols are discarded by comdat rules we still want to create a local defined symbol, otherwise `Symbol::isDiscarded()` relies on begin able to check `getChunk->discarded`. This is a followup on rL362769. The comdat.ll test was previously GC'ing the `__wasm_call_ctors` functions so `do_init` was not actually being included in the link. Once that function was included in triggered the crash bug that this change addresses. Fixes: https://github.com/emscripten-core/emscripten/issues/8981 Differential Revision: https://reviews.llvm.org/D64872 llvm-svn: 366358
23 lines
540 B
LLVM
23 lines
540 B
LLVM
target triple = "wasm32-unknown-unknown"
|
|
|
|
$foo = comdat any
|
|
|
|
@constantData = constant [3 x i8] c"abc", comdat($foo)
|
|
|
|
define i32 @comdatFn() comdat($foo) {
|
|
ret i32 ptrtoint ([3 x i8]* @constantData to i32)
|
|
}
|
|
|
|
define internal void @do_init() comdat($foo) {
|
|
ret void
|
|
}
|
|
|
|
%0 = type { i32, void ()*, i8* }
|
|
@llvm.global_ctors = appending global [1 x %0 ] [%0 { i32 65535, void ()* @do_init, i8* null }]
|
|
|
|
; Everything above this is part of the `foo` comdat group
|
|
|
|
define i32 @callComdatFn1() {
|
|
ret i32 ptrtoint (i32 ()* @comdatFn to i32)
|
|
}
|