1 files changed, 23 insertions, 0 deletions
diff --git a/test/Instrumentation/DataFlowSanitizer/debug-nonzero-labels.ll b/test/Instrumentation/DataFlowSanitizer/debug-nonzero-labels.ll
new file mode 100644
index 0000000..4329fd1
--- /dev/null
+++ b/test/Instrumentation/DataFlowSanitizer/debug-nonzero-labels.ll
@@ -0,0 +1,23 @@
+; RUN: opt < %s -dfsan -dfsan-args-abi -dfsan-debug-nonzero-labels -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"
+
+declare i32 @g()
+
+; CHECK: define { i32, i16 } @f(i32, i16)
+define i32 @f(i32) {
+  ; CHECK: [[LOCALLABELALLOCA:%.*]] = alloca i16
+  ; CHECK: [[ARGCMP:%.*]] = icmp ne i16 %1, 0
+  ; CHECK: br i1 [[ARGCMP]]
+  %i = alloca i32
+  store i32 %0, i32* %i
+  ; CHECK: [[CALL:%.*]] = call { i32, i16 } @g()
+  ; CHECK: [[CALLLABEL:%.*]] = extractvalue { i32, i16 } [[CALL]], 1
+  ; CHECK: [[CALLCMP:%.*]] = icmp ne i16 [[CALLLABEL]], 0
+  ; CHECK: br i1 [[CALLCMP]]
+  %call = call i32 @g()
+  ; CHECK: [[LOCALLABEL:%.*]] = load i16* [[LOCALLABELALLOCA]]
+  ; CHECK: [[LOCALCMP:%.*]] = icmp ne i16 [[LOCALLABEL]], 0
+  ; CHECK: br i1 [[LOCALCMP]]
+  %load = load i32* %i
+  ret i32 %load
+}