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-rw-r--r--llvm/tools/bugpoint/bugpoint.cpp14
1 files changed, 10 insertions, 4 deletions
diff --git a/llvm/tools/bugpoint/bugpoint.cpp b/llvm/tools/bugpoint/bugpoint.cpp
index 4ddea8dbec1..ec1ca2e5496 100644
--- a/llvm/tools/bugpoint/bugpoint.cpp
+++ b/llvm/tools/bugpoint/bugpoint.cpp
@@ -50,10 +50,10 @@ static cl::opt<unsigned> TimeoutValue(
cl::desc("Number of seconds program is allowed to run before it "
"is killed (default is 300s), 0 disables timeout"));
-static cl::opt<int>
- MemoryLimit("mlimit", cl::init(-1), cl::value_desc("MBytes"),
- cl::desc("Maximum amount of memory to use. 0 disables check."
- " Defaults to 400MB (800MB under valgrind)."));
+static cl::opt<int> MemoryLimit(
+ "mlimit", cl::init(-1), cl::value_desc("MBytes"),
+ cl::desc("Maximum amount of memory to use. 0 disables check. Defaults to "
+ "400MB (800MB under valgrind, 0 with sanitizers)."));
static cl::opt<bool>
UseValgrind("enable-valgrind",
@@ -169,6 +169,12 @@ int main(int argc, char **argv) {
MemoryLimit = 800;
else
MemoryLimit = 400;
+#if (LLVM_ADDRESS_SANITIZER_BUILD || LLVM_MEMORY_SANITIZER_BUILD || \
+ LLVM_THREAD_SANITIZER_BUILD)
+ // Starting from kernel 4.9 memory allocated with mmap is counted against
+ // RLIMIT_DATA. Sanitizers need to allocate tens of terabytes for shadow.
+ MemoryLimit = 0;
+#endif
}
BugDriver D(argv[0], FindBugs, TimeoutValue, MemoryLimit, UseValgrind,
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