Revert r226440.
It was fixed the right way in r227195.
llvm-svn: 227196
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc
index ffea321..0048f67 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_coverage_libcdep.cc
@@ -156,8 +156,7 @@
}
void CoverageData::Enable() {
- if (pc_array)
- return;
+ CHECK_EQ(pc_array, nullptr);
pc_array = reinterpret_cast<uptr *>(
MmapNoReserveOrDie(sizeof(uptr) * kPcArrayMaxSize, "CovInit"));
atomic_store(&pc_array_index, 0, memory_order_relaxed);
@@ -183,7 +182,6 @@
}
void CoverageData::InitializeGuardArray(s32 *guards) {
- Enable(); // Make sure coverage is enabled at this point.
s32 n = guards[0];
for (s32 j = 1; j <= n; j++) {
uptr idx = atomic_fetch_add(&pc_array_index, 1, memory_order_relaxed);