1
; RUN: opt < %s -tsan -S | FileCheck %s
3
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"
5
declare void @escape(i32*)
7
@sink = global i32* null, align 4
9
define void @captured0() nounwind uwtable sanitize_thread {
11
%ptr = alloca i32, align 4
13
call void @escape(i32* %ptr)
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store i32 42, i32* %ptr, align 4
17
; CHECK-LABEL: define void @captured0
21
define void @captured1() nounwind uwtable sanitize_thread {
23
%ptr = alloca i32, align 4
24
; escapes due to store into global
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store i32* %ptr, i32** @sink, align 8
26
store i32 42, i32* %ptr, align 4
29
; CHECK-LABEL: define void @captured1
34
define void @captured2() nounwind uwtable sanitize_thread {
36
%ptr = alloca i32, align 4
37
%tmp = alloca i32*, align 8
39
store i32* %ptr, i32** %tmp, align 8
40
%0 = load i32*, i32** %tmp, align 8
41
store i32* %0, i32** @sink, align 8
42
store i32 42, i32* %ptr, align 4
45
; CHECK-LABEL: define void @captured2
50
define void @notcaptured0() nounwind uwtable sanitize_thread {
52
%ptr = alloca i32, align 4
53
store i32 42, i32* %ptr, align 4
55
call void @escape(i32* %ptr)
58
; CHECK-LABEL: define void @notcaptured0
62
define void @notcaptured1() nounwind uwtable sanitize_thread {
64
%ptr = alloca i32, align 4
65
store i32 42, i32* %ptr, align 4
66
; escapes due to store into global
67
store i32* %ptr, i32** @sink, align 8
70
; CHECK-LABEL: define void @notcaptured1
75
define void @notcaptured2() nounwind uwtable sanitize_thread {
77
%ptr = alloca i32, align 4
78
%tmp = alloca i32*, align 8
79
store i32 42, i32* %ptr, align 4
81
store i32* %ptr, i32** %tmp, align 8
82
%0 = load i32*, i32** %tmp, align 8
83
store i32* %0, i32** @sink, align 8
86
; CHECK-LABEL: define void @notcaptured2