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| author | Anshil Gandhi <gandhi21299@gmail.com> | 2023-07-03 15:11:04 -0600 |
|---|---|---|
| committer | Anshil Gandhi <gandhi21299@gmail.com> | 2023-07-03 15:11:41 -0600 |
| commit | e578b3be24fc3986f46942aa1fdbf73ff8d34ace (patch) | |
| tree | 4e65eaee97734d149e5f4bffefc4581d32330f44 /llvm/lib/Analysis/MemoryBuiltins.cpp | |
| parent | ebd2ed2aa88d582aff553e7fbab513d9dad9d0aa (diff) | |
| download | llvm-e578b3be24fc3986f46942aa1fdbf73ff8d34ace.zip llvm-e578b3be24fc3986f46942aa1fdbf73ff8d34ace.tar.gz llvm-e578b3be24fc3986f46942aa1fdbf73ff8d34ace.tar.bz2 | |
[InstSimplify] Fold all global variables with initializers
Allow computing size of interposable or externally initializable global variables.
Reviewed By: nikic
Differential Revision: https://reviews.llvm.org/D152145
Diffstat (limited to 'llvm/lib/Analysis/MemoryBuiltins.cpp')
| -rw-r--r-- | llvm/lib/Analysis/MemoryBuiltins.cpp | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/MemoryBuiltins.cpp b/llvm/lib/Analysis/MemoryBuiltins.cpp index 6b2e442..53e089b 100644 --- a/llvm/lib/Analysis/MemoryBuiltins.cpp +++ b/llvm/lib/Analysis/MemoryBuiltins.cpp @@ -830,7 +830,9 @@ SizeOffsetType ObjectSizeOffsetVisitor::visitGlobalAlias(GlobalAlias &GA) { } SizeOffsetType ObjectSizeOffsetVisitor::visitGlobalVariable(GlobalVariable &GV){ - if (!GV.hasDefinitiveInitializer()) + if (!GV.getValueType()->isSized() || GV.hasExternalWeakLinkage() || + ((!GV.hasInitializer() || GV.isInterposable()) && + Options.EvalMode != ObjectSizeOpts::Mode::Min)) return unknown(); APInt Size(IntTyBits, DL.getTypeAllocSize(GV.getValueType())); |