[compiler-rt] c507964 - [NFC][scudo] Suppress "division by zero" warning

[Vitaly Buka via llvm-commits]

Author: Vitaly Buka
Date: 2021-04-29T01:24:40-07:00
New Revision: c50796475d9452a3f62a0c103a78d72649557c0b

URL: https://github.com/llvm/llvm-project/commit/c50796475d9452a3f62a0c103a78d72649557c0b
DIFF: https://github.com/llvm/llvm-project/commit/c50796475d9452a3f62a0c103a78d72649557c0b.diff

LOG: [NFC][scudo] Suppress "division by zero" warning

Added: 
    

Modified: 
    compiler-rt/lib/scudo/standalone/secondary.h

Removed: 
    


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diff  --git a/compiler-rt/lib/scudo/standalone/secondary.h b/compiler-rt/lib/scudo/standalone/secondary.h
index ce3d7b48cc6c..03ac68cc02dd 100644
--- a/compiler-rt/lib/scudo/standalone/secondary.h
+++ b/compiler-rt/lib/scudo/standalone/secondary.h
@@ -170,7 +170,7 @@ template <typename Config> class MapAllocatorCache {
       if (Config::SecondaryCacheQuarantineSize &&
           useMemoryTagging<Config>(Options)) {
         QuarantinePos =
-            (QuarantinePos + 1) % Config::SecondaryCacheQuarantineSize;
+            (QuarantinePos + 1) % Max(Config::SecondaryCacheQuarantineSize, 1u);
         if (!Quarantine[QuarantinePos].CommitBase) {
           Quarantine[QuarantinePos] = Entry;
           return;