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author | Teresa Johnson <tejohnson@google.com> | 2017-12-16 00:18:12 +0000 |
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committer | Teresa Johnson <tejohnson@google.com> | 2017-12-16 00:18:12 +0000 |
commit | 2140d926da5be829f23fc59bcaf8fe95800faed0 (patch) | |
tree | 20ac5e04344c3f76a1d630bf50e64926602bce3a /lib/IR | |
parent | 2d82935d1ad3407029669a0854650f9aa7866150 (diff) |
[ThinLTO] Enable importing of aliases as copy of aliasee
Summary:
This implements a missing feature to allow importing of aliases, which
was previously disabled because alias cannot be available_externally.
We instead import an alias as a copy of its aliasee.
Some additional work was required in the IndexBitcodeWriter for the
distributed build case, to ensure that the aliasee has a value id
in the distributed index file (i.e. even when it is not being
imported directly).
This is a performance win in codes that have many aliases, e.g. C++
applications that have many constructor and destructor aliases.
Reviewers: pcc
Subscribers: mehdi_amini, inglorion, eraman, llvm-commits
Differential Revision: https://reviews.llvm.org/D40747
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@320895 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/IR')
-rw-r--r-- | lib/IR/Value.cpp | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/IR/Value.cpp b/lib/IR/Value.cpp index 50235d8d30f..19b2535fbd6 100644 --- a/lib/IR/Value.cpp +++ b/lib/IR/Value.cpp @@ -409,7 +409,7 @@ void Value::doRAUW(Value *New, bool NoMetadata) { if (!NoMetadata && isUsedByMetadata()) ValueAsMetadata::handleRAUW(this, New); - while (!use_empty()) { + while (!materialized_use_empty()) { Use &U = *UseList; // Must handle Constants specially, we cannot call replaceUsesOfWith on a // constant because they are uniqued. |