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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
9 lines
246 B
LLVM
9 lines
246 B
LLVM
; RUN: not llvm-link %s %p/Inputs/comdat8.ll -S -o - 2>&1 | FileCheck %s
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$c1 = comdat largest
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@some_name = unnamed_addr constant i32 42, comdat($c1)
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@c1 = alias i8, inttoptr (i32 1 to i8*)
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; CHECK: COMDAT key involves incomputable alias size.
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