1 files changed, 17 insertions, 0 deletions
diff --git a/llvm/test/Instrumentation/HWAddressSanitizer/alloca-compat.ll b/llvm/test/Instrumentation/HWAddressSanitizer/alloca-compat.ll
new file mode 100644
index 00000000000..d2acbf6bdf4
--- /dev/null
+++ b/llvm/test/Instrumentation/HWAddressSanitizer/alloca-compat.ll
@@ -0,0 +1,17 @@
+; Test that alloca instrumentation with old API levels does not use short granules.
+;
+; RUN: opt < %s -hwasan -S | FileCheck %s
+
+target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
+target triple = "aarch64--linux-android"
+
+declare void @use32(i32*)
+
+define void @test_alloca() sanitize_hwaddress {
+; CHECK-LABEL: @test_alloca(
+; CHECK: %[[X_TAG:[^ ]*]] = trunc i64 {{.*}} to i8
+; CHECK: call void @llvm.memset.p0i8.i64(i8* align 1 {{.*}}, i8 %[[X_TAG]], i64 1, i1 false)
+  %x = alloca i32, align 4
+  call void @use32(i32* nonnull %x)
+  ret void
+}