1; RUN: opt < %s -dfsan -verify -dfsan-args-abi -S | FileCheck %s
2target 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"
3target triple = "x86_64-unknown-linux-gnu"
4
5; CHECK: @__dfsan_shadow_width_bits = weak_odr constant i32 [[#SBITS:]]
6; CHECK: @__dfsan_shadow_width_bytes = weak_odr constant i32 [[#SBYTES:]]
7
8; CHECK-LABEL: @unreachable_bb1.dfsan
9define i8 @unreachable_bb1() {
10  ; CHECK: ret { i8, i[[#SBITS]] } { i8 1, i[[#SBITS]] 0 }
11  ; CHECK-NOT: bb2:
12  ; CHECK-NOT: bb3:
13  ; CHECK-NOT: bb4:
14  ret i8 1
15
16bb2:
17  ret i8 2
18
19bb3:
20  br label %bb4
21
22bb4:
23  br label %bb3
24}
25
26declare void @abort() noreturn
27
28; CHECK-LABEL: @unreachable_bb2.dfsan
29define i8 @unreachable_bb2() {
30  call void @abort() noreturn
31  ; CHECK-NOT: i8 12
32  ; CHECK: unreachable
33  ret i8 12
34}
35