[all-commits] [llvm/llvm-project] 7bc00c: [clang-repl] Remove memory leak of ASTContext/Targ...
Sunho Kim via All-commits
all-commits at lists.llvm.org
Fri Jun 17 14:36:54 PDT 2022
Author: Sunho Kim <ksunhokim123 at gmail.com>
Date: 2022-06-18 (Sat, 18 Jun 2022)
[clang-repl] Remove memory leak of ASTContext/TargetMachine.
Removes memory leak of ASTContext and TargetMachine. When DisableFree is turned on, it intentionally leaks these instances as they can be trivially deallocated. This patch turns this off and delete Parser instance early so that they will not reference dangling pargma headers.
Asan shouldn't detect these as leaks normally, since burypointer is called for them. But, every invocation of incremental parser createa an additional leak of TargetMachine. If there are many invocations within a single test case, we easily reach number of leaks exceeding kGraveYardMaxSize (which is 12) and leaks start to get reported by asan buildbots.
Reviewed By: v.g.vassilev
Differential Revision: https://reviews.llvm.org/D127991
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