1 files changed, 81 insertions, 0 deletions
diff --git a/test/Instrumentation/DataFlowSanitizer/load.ll b/test/Instrumentation/DataFlowSanitizer/load.ll
new file mode 100644
index 0000000..d12a17a
--- /dev/null
+++ b/test/Instrumentation/DataFlowSanitizer/load.ll
@@ -0,0 +1,81 @@
+; RUN: opt < %s -dfsan -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"
+
+define i8 @load8(i8* %p) {
+  ; CHECK: @load8
+  ; CHECK: ptrtoint
+  ; CHECK: and
+  ; CHECK: mul
+  ; CHECK: inttoptr
+  ; CHECK: load
+  ; CHECK: store{{.*}}__dfsan_retval_tls
+  ; CHECK: ret i8
+  %a = load i8* %p
+  ret i8 %a
+}
+
+define i16 @load16(i16* %p) {
+  ; CHECK: @load16
+  ; CHECK: ptrtoint
+  ; CHECK: and
+  ; CHECK: mul
+  ; CHECK: inttoptr
+  ; CHECK: load
+  ; CHECK: load
+  ; CHECK: icmp ne
+  ; CHECK: call{{.*}}__dfsan_union
+  ; CHECK: store{{.*}}__dfsan_retval_tls
+  ; CHECK: ret i16
+  %a = load i16* %p
+  ret i16 %a
+}
+
+define i32 @load32(i32* %p) {
+  ; CHECK: @load32
+  ; CHECK: ptrtoint
+  ; CHECK: and
+  ; CHECK: mul
+  ; CHECK: inttoptr
+  ; CHECK: bitcast
+  ; CHECK: load
+  ; CHECK: trunc
+  ; CHECK: shl
+  ; CHECK: lshr
+  ; CHECK: or
+  ; CHECK: icmp eq
+
+  ; CHECK: store{{.*}}__dfsan_retval_tls
+  ; CHECK: ret i32
+
+  ; CHECK: call{{.*}}__dfsan_union_load
+
+  %a = load i32* %p
+  ret i32 %a
+}
+
+define i64 @load64(i64* %p) {
+  ; CHECK: @load64
+  ; CHECK: ptrtoint
+  ; CHECK: and
+  ; CHECK: mul
+  ; CHECK: inttoptr
+  ; CHECK: bitcast
+  ; CHECK: load
+  ; CHECK: trunc
+  ; CHECK: shl
+  ; CHECK: lshr
+  ; CHECK: or
+  ; CHECK: icmp eq
+
+  ; CHECK: store{{.*}}__dfsan_retval_tls
+  ; CHECK: ret i64
+
+  ; CHECK: call{{.*}}__dfsan_union_load
+
+  ; CHECK: getelementptr
+  ; CHECK: load
+  ; CHECK: icmp eq
+
+  %a = load i64* %p
+  ret i64 %a
+}