From dc999653431c905c49e1c96d723ccfa02d85a14d Mon Sep 17 00:00:00 2001 From: Benjamin Kramer Date: Sun, 23 May 2010 20:57:46 +0000 Subject: Add a comment for r104472. llvm-svn: 104473 --- clang/lib/CodeGen/CGStmt.cpp | 3 +++ 1 file changed, 3 insertions(+) (limited to 'clang/lib/CodeGen/CGStmt.cpp') diff --git a/clang/lib/CodeGen/CGStmt.cpp b/clang/lib/CodeGen/CGStmt.cpp index 3e807bdbc76..efde3807111 100644 --- a/clang/lib/CodeGen/CGStmt.cpp +++ b/clang/lib/CodeGen/CGStmt.cpp @@ -79,6 +79,9 @@ void CodeGenFunction::EmitStmt(const Stmt *S) { // Expression emitters don't handle unreachable blocks yet, so look for one // explicitly here. This handles the common case of a call to a noreturn // function. + // We can't erase blocks with an associated cleanup size here since the + // memory might be reused, leaving the old cleanup info pointing at a new + // block. if (llvm::BasicBlock *CurBB = Builder.GetInsertBlock()) { if (CurBB->empty() && CurBB->use_empty() && !BlockScopes.count(CurBB)) { CurBB->eraseFromParent(); -- cgit v1.2.1