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-rw-r--r--llvm/lib/Support/Unix/Threading.inc1
1 files changed, 1 insertions, 0 deletions
diff --git a/llvm/lib/Support/Unix/Threading.inc b/llvm/lib/Support/Unix/Threading.inc
index 742660d..562971a 100644
--- a/llvm/lib/Support/Unix/Threading.inc
+++ b/llvm/lib/Support/Unix/Threading.inc
@@ -318,6 +318,7 @@ static int computeHostNumHardwareThreads() {
return CPU_COUNT(&mask);
#elif defined(__linux__)
cpu_set_t Set;
+ CPU_ZERO(&Set);
if (sched_getaffinity(0, sizeof(Set), &Set) == 0)
return CPU_COUNT(&Set);
#endif