1 files changed, 27 insertions, 0 deletions
diff --git a/test/ubsan/TestCases/Pointer/alignment-assumption-builtin_assume_aligned-three-params-variable.cpp b/test/ubsan/TestCases/Pointer/alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
new file mode 100644
index 0000000000000..cc4e1f2184da7
--- /dev/null
+++ b/test/ubsan/TestCases/Pointer/alignment-assumption-builtin_assume_aligned-three-params-variable.cpp
@@ -0,0 +1,27 @@
+// RUN: %clang   -x c   -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+// RUN: %clang   -x c   -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+// RUN: %clang   -x c   -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+// RUN: %clang   -x c   -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+
+// RUN: %clang   -x c++ -fsanitize=alignment -O0 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+// RUN: %clang   -x c++ -fsanitize=alignment -O1 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+// RUN: %clang   -x c++ -fsanitize=alignment -O2 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+// RUN: %clang   -x c++ -fsanitize=alignment -O3 %s -o %t && %run %t 2>&1 | FileCheck %s --implicit-check-not=" assumption " --implicit-check-not="note:" --implicit-check-not="error:"
+
+#include <stdlib.h>
+
+volatile long offset;
+
+int main(int argc, char* argv[]) {
+  char *ptr = (char *)malloc(3);
+
+  offset = 1;
+
+  __builtin_assume_aligned(ptr + 2, 0x8000, offset);
+  // CHECK: {{.*}}alignment-assumption-{{.*}}.cpp:[[@LINE-1]]:32: runtime error: assumption of 32768 byte alignment (with offset of 1 byte) for pointer of type 'char *' failed
+  // CHECK: 0x{{.*}}: note: offset address is {{.*}} aligned, misalignment offset is {{.*}} byte
+
+  free(ptr);
+
+  return 0;
+}