1; RUN: opt < %s -dfsan -dfsan-debug-nonzero-labels -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
8declare i32 @g()
9
10; CHECK: define i32 @f.dfsan(i32 %0, i32 %1)
11define i32 @f(i32, i32) {
12  ; CHECK: [[ARGLABEL1:%.*]] = load i[[#SBITS]], {{.*}} @__dfsan_arg_tls
13  %i = alloca i32
14  ; CHECK: [[ARGCMP1:%.*]] = icmp ne i[[#SBITS]] [[ARGLABEL1]], 0
15  ; CHECK: br i1 [[ARGCMP1]]
16  ; CHECK: [[ARGLABEL2:%.*]] = load i[[#SBITS]], {{.*}} @__dfsan_arg_tls
17  ; CHECK: [[LOCALLABELALLOCA:%.*]] = alloca i[[#SBITS]]
18  ; CHECK: [[ARGCMP2:%.*]] = icmp ne i[[#SBITS]] [[ARGLABEL2]], 0
19  ; CHECK: br i1 [[ARGCMP2]]
20  %x = add i32 %0, %1
21  store i32 %x, i32* %i
22  ; CHECK: [[CALL:%.*]] = call i32 @g.dfsan()
23  ; CHECK: [[RETLABEL:%.*]] = load i[[#SBITS]], {{.*}} @__dfsan_retval_tls
24  ; CHECK: [[CALLCMP:%.*]] = icmp ne i[[#SBITS]] [[RETLABEL]], 0
25  ; CHECK: br i1 [[CALLCMP]]
26  %call = call i32 @g()
27  ; CHECK: [[LOCALLABEL:%.*]] = load i[[#SBITS]], i[[#SBITS]]* [[LOCALLABELALLOCA]]
28  ; CHECK: [[LOCALCMP:%.*]] = icmp ne i[[#SBITS]] [[LOCALLABEL]], 0
29  ; CHECK: br i1 [[LOCALCMP]]
30  %load = load i32, i32* %i
31  ret i32 %load
32}
33