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By exposing the constant initializer, the optimizer can fold many
of these constructs.
This is a recommit of r311857 that was reverted in r311898 because
an assert was hit when building Chromium.
We have to take into account that the GlobalVariable may be first
created with a different type than the initializer. This can
happen for example when the variable is a struct with tail padding
while the initializer does not have padding. In such case, the
variable needs to be destroyed an replaced with a new one with the
type of the initializer.
Differential Revision: https://reviews.llvm.org/D34992
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@312512 91177308-0d34-0410-b5e6-96231b3b80d8
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It caused PR759744.
> Emit static constexpr member as available_externally definition
>
> By exposing the constant initializer, the optimizer can fold many
> of these constructs.
>
> Differential Revision: https://reviews.llvm.org/D34992
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311898 91177308-0d34-0410-b5e6-96231b3b80d8
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By exposing the constant initializer, the optimizer can fold many
of these constructs.
Differential Revision: https://reviews.llvm.org/D34992
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@311857 91177308-0d34-0410-b5e6-96231b3b80d8
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