[PATCH] D149252: [hwasan] fix false positive when hwasan-match-all-tag flag is enabled and short granules are used

[Mingjie Xu via Phabricator via llvm-commits]

Enna1 updated this revision to Diff 517442.
Enna1 added a comment.

- only test


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D149252/new/

https://reviews.llvm.org/D149252

Files:
  compiler-rt/test/hwasan/TestCases/short-granule-and-match-all-tag.cpp


Index: compiler-rt/test/hwasan/TestCases/short-granule-and-match-all-tag.cpp
===================================================================
--- /dev/null
+++ compiler-rt/test/hwasan/TestCases/short-granule-and-match-all-tag.cpp
@@ -0,0 +1,12 @@
+// RUN: %clang_hwasan -mllvm -hwasan-match-all-tag=0 %s -o %t && %run %t
+
+#include <sanitizer/hwasan_interface.h>
+#include <stdlib.h>
+
+int main() {
+  __hwasan_enable_allocator_tagging();
+  char *x = (char *)malloc(40);
+  char volatile z = *x;
+  free(x);
+  return 0;
+}


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