llvm-project/llvm/test/Linker/comdat8.ll

; RUN: not llvm-link %s %p/Inputs/comdat8.ll -S -o - 2>&1 | FileCheck %s

$c1 = comdat largest

@some_name = unnamed_addr constant i32 42, comdat($c1)
@c1 = alias i8, inttoptr (i32 1 to i8*)

; CHECK: COMDAT key involves incomputable alias size.
Cleanup this test a bit. Use simpler names and remove unnecessary fields. llvm-svn: 220498 2014-10-24 03:23:42 +08:00			`; RUN: not llvm-link %s %p/Inputs/comdat8.ll -S -o - 2>&1 \| FileCheck %s`

			`$c1 = comdat largest`

IR: Teach GlobalIndirectSymbol::getBaseObject() to handle more kinds of expressions. For aliases, any expression that lowers at the MC level to global_object or global_object+constant is valid at the object file level. getBaseObject() should return a result if the aliasee ends up being of that form even if the IR used to produce it is somewhat unconventional. Note that this is different from what stripInBoundsOffsets() and that family of functions is doing. Those functions are concerned about semantic properties of IR, whereas here we only care about the lowering result. Therefore reimplement getBaseObject() in a way that matches the lowering result. This fixes a crash when producing a summary for aliases such as that in the included test case. Differential Revision: https://reviews.llvm.org/D65115 llvm-svn: 366952 2019-07-25 06:23:05 +08:00			`@some_name = unnamed_addr constant i32 42, comdat($c1)`
			`@c1 = alias i8, inttoptr (i32 1 to i8*)`
IR: Add COMDATs to the IR This new IR facility allows us to represent the object-file semantic of a COMDAT group. COMDATs allow us to tie together sections and make the inclusion of one dependent on another. This is required to implement features like MS ABI VFTables and optimizing away certain kinds of initialization in C++. This functionality is only representable in COFF and ELF, Mach-O has no similar mechanism. Differential Revision: http://reviews.llvm.org/D4178 llvm-svn: 211920 2014-06-28 02:19:56 +08:00
			`; CHECK: COMDAT key involves incomputable alias size.`