llvm/circular-reference.ll at 6d5ad7b563e4b926514cd11eada04c77982af2f1 - llvm - Gitea: Git with a cup of tea

RPCSX/llvm

mirror of https://github.com/RPCSX/llvm.git synced 2024-11-24 12:19:53 +00:00

Peter Collingbourne d8035f7f14 ThinLTOBitcodeWriter: Do not follow operand edges of type GlobalValue when looking for virtual functions.

Such edges may otherwise result in infinite recursion if a pointer to a vtable
is reachable from the vtable itself. This can happen in practice if a TU
defines the ABI types used to implement RTTI, and is itself compiled with RTTI.

Fixes PR32121.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296839 91177308-0d34-0410-b5e6-96231b3b80d8

2017-03-02 23:10:17 +00:00

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 ; RUN: opt -thinlto-bc -o %t %s
 ; RUN: llvm-modextract -b -n 0 -o - %t | llvm-dis | FileCheck --check-prefix=M0 %s
 ; RUN: llvm-modextract -b -n 1 -o - %t | llvm-dis | FileCheck --check-prefix=M1 %s
 ; M0: @g = external constant
 ; M1: @g = constant
 @g = constant i8* bitcast (i8** @g to i8*), !type !0
 !0 = !{i32 0, !"typeid"}