[PATCH] D86841: [clang] Add noprogress attribute deduction for infinite loops

[Atmn Patel via Phabricator via cfe-commits]

atmnpatel updated this revision to Diff 289849.
atmnpatel added a comment.

In Summary:

- I changed the llvm loop metadata name to `mustprogress`, to indicate that loops with this attribute are required to have side-effects.
- The `mayprogress` function attribute is applied to functions where an infinite loop is found with a constant conditional.
- The `mustprogress` attribute is applied to loops within a `mayprogress` function that do not have a constant conditional.


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D86841/new/

https://reviews.llvm.org/D86841

Files:
  clang/lib/CodeGen/CGLoopInfo.cpp
  clang/lib/CodeGen/CGLoopInfo.h
  clang/lib/CodeGen/CGStmt.cpp
  clang/lib/CodeGen/CodeGenFunction.cpp
  clang/lib/CodeGen/CodeGenFunction.h
  clang/test/CodeGen/attr-noprogress.c
  clang/test/CodeGen/attr-noprogress.cpp
  clang/test/CodeGenCXX/fno-unroll-loops-metadata.cpp

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