1 files changed, 89 insertions, 0 deletions
diff --git a/test/Instrumentation/MemorySanitizer/store-long-origin.ll b/test/Instrumentation/MemorySanitizer/store-long-origin.ll
new file mode 100644
index 0000000..128f810
--- /dev/null
+++ b/test/Instrumentation/MemorySanitizer/store-long-origin.ll
@@ -0,0 +1,89 @@
+; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck %s
+
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+
+; Test origin for longer stores.
+
+define void @Store8(i64* nocapture %p, i64 %x) sanitize_memory {
+entry:
+  store i64 %x, i64* %p, align 8
+  ret void
+}
+
+; Single 8-byte origin store
+; CHECK-LABEL: define void @Store8(
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: ret void
+
+define void @Store8_align4(i64* nocapture %p, i64 %x) sanitize_memory {
+entry:
+  store i64 %x, i64* %p, align 4
+  ret void
+}
+
+; Two 4-byte origin stores
+; CHECK-LABEL: define void @Store8_align4(
+; CHECK: store i64 {{.*}}, align 4
+; CHECK: store i32 {{.*}}, align 4
+; CHECK: getelementptr i32* {{.*}}, i32 1
+; CHECK: store i32 {{.*}}, align 4
+; CHECK: store i64 {{.*}}, align 4
+; CHECK: ret void
+
+%struct.S = type { i32, i32, i32 }
+
+define void @StoreAgg(%struct.S* nocapture %p, %struct.S %x) sanitize_memory {
+entry:
+  store %struct.S %x, %struct.S* %p, align 4
+  ret void
+}
+
+; Three 4-byte origin stores
+; CHECK-LABEL: define void @StoreAgg(
+; CHECK: store { i32, i32, i32 }  {{.*}}, align 4
+; CHECK: store i32 {{.*}}, align 4
+; CHECK: getelementptr i32* {{.*}}, i32 1
+; CHECK: store i32 {{.*}}, align 4
+; CHECK: getelementptr i32* {{.*}}, i32 2
+; CHECK: store i32 {{.*}}, align 4
+; CHECK: store %struct.S {{.*}}, align 4
+; CHECK: ret void
+
+
+define void @StoreAgg8(%struct.S* nocapture %p, %struct.S %x) sanitize_memory {
+entry:
+  store %struct.S %x, %struct.S* %p, align 8
+  ret void
+}
+
+; 8-byte + 4-byte origin stores
+; CHECK-LABEL: define void @StoreAgg8(
+; CHECK: store { i32, i32, i32 }  {{.*}}, align 8
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: getelementptr i32* {{.*}}, i32 2
+; CHECK: store i32 {{.*}}, align 8
+; CHECK: store %struct.S {{.*}}, align 8
+; CHECK: ret void
+
+
+%struct.Q = type { i64, i64, i64 }
+define void @StoreAgg24(%struct.Q* nocapture %p, %struct.Q %x) sanitize_memory {
+entry:
+  store %struct.Q %x, %struct.Q* %p, align 8
+  ret void
+}
+
+; 3 8-byte origin stores
+; CHECK-LABEL: define void @StoreAgg24(
+; CHECK: store { i64, i64, i64 }  {{.*}}, align 8
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: getelementptr i64* {{.*}}, i32 1
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: getelementptr i64* {{.*}}, i32 2
+; CHECK: store i64 {{.*}}, align 8
+; CHECK: store %struct.Q {{.*}}, align 8
+; CHECK: ret void