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| author | Johannes Doerfert <jdoerfert@anl.gov> | 2019-06-27 15:51:40 +0000 |
|---|---|---|
| committer | Johannes Doerfert <jdoerfert@anl.gov> | 2019-06-27 15:51:40 +0000 |
| commit | 3b77583e95236761d8741fd6df375975a8ca5d83 (patch) | |
| tree | 62368c6f8dec79ee75d295c2d39c31d41a9646e8 /llvm/lib/Transforms/Utils/CodeExtractor.cpp | |
| parent | 7d8274d54d0305b827e87adae4619abd6433043c (diff) | |
| download | bcm5719-llvm-3b77583e95236761d8741fd6df375975a8ca5d83.tar.gz bcm5719-llvm-3b77583e95236761d8741fd6df375975a8ca5d83.zip | |
[Attr] Add "willreturn" function attribute
This patch introduces a new function attribute, willreturn, to indicate
that a call of this function will either exhibit undefined behavior or
comes back and continues execution at a point in the existing call stack
that includes the current invocation.
This attribute guarantees that the function does not have any endless
loops, endless recursion, or terminating functions like abort or exit.
Patch by Hideto Ueno (@uenoku)
Reviewers: jdoerfert
Subscribers: mehdi_amini, hiraditya, steven_wu, dexonsmith, lebedev.ri, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D62801
llvm-svn: 364555
Diffstat (limited to 'llvm/lib/Transforms/Utils/CodeExtractor.cpp')
| -rw-r--r-- | llvm/lib/Transforms/Utils/CodeExtractor.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Utils/CodeExtractor.cpp b/llvm/lib/Transforms/Utils/CodeExtractor.cpp index 61c1e9313c2..23a404c11a6 100644 --- a/llvm/lib/Transforms/Utils/CodeExtractor.cpp +++ b/llvm/lib/Transforms/Utils/CodeExtractor.cpp @@ -801,6 +801,7 @@ Function *CodeExtractor::constructFunction(const ValueSet &inputs, case Attribute::StructRet: case Attribute::SwiftError: case Attribute::SwiftSelf: + case Attribute::WillReturn: case Attribute::WriteOnly: case Attribute::ZExt: case Attribute::ImmArg: |
