diff options
| -rw-r--r-- | llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp | 11 | ||||
| -rw-r--r-- | llvm/test/Instrumentation/AddressSanitizer/twice.ll | 8 |
2 files changed, 19 insertions, 0 deletions
diff --git a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp index dea94a514fe..a9df5e5898a 100644 --- a/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp +++ b/llvm/lib/Transforms/Instrumentation/AddressSanitizer.cpp @@ -280,6 +280,11 @@ class GlobalsMetadata { GlobalsMetadata() : inited_(false) {} + void reset() { + inited_ = false; + Entries.clear(); + } + void init(Module &M) { assert(!inited_); inited_ = true; @@ -450,6 +455,7 @@ struct AddressSanitizer : public FunctionPass { bool maybeInsertAsanInitAtFunctionEntry(Function &F); void markEscapedLocalAllocas(Function &F); bool doInitialization(Module &M) override; + bool doFinalization(Module &M) override; static char ID; // Pass identification, replacement for typeid DominatorTree &getDominatorTree() const { return *DT; } @@ -1521,6 +1527,11 @@ bool AddressSanitizer::doInitialization(Module &M) { return true; } +bool AddressSanitizer::doFinalization(Module &M) { + GlobalsMD.reset(); + return false; +} + bool AddressSanitizer::maybeInsertAsanInitAtFunctionEntry(Function &F) { // For each NSObject descendant having a +load method, this method is invoked // by the ObjC runtime before any of the static constructors is called. diff --git a/llvm/test/Instrumentation/AddressSanitizer/twice.ll b/llvm/test/Instrumentation/AddressSanitizer/twice.ll new file mode 100644 index 00000000000..9f7826f7395 --- /dev/null +++ b/llvm/test/Instrumentation/AddressSanitizer/twice.ll @@ -0,0 +1,8 @@ +; Check that the address sanitizer pass can be reused +; RUN: opt < %s -S -run-twice -asan + +define void @foo(i64* %b) nounwind uwtable sanitize_address { + entry: + store i64 0, i64* %b, align 1 + ret void +} |
