1; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
2; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
3
4@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
5
6; array of [16 x i8]
7
8define void @foo(i8* %a) nounwind uwtable safestack {
9entry:
10  ; CHECK: %[[USP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr
11
12  ; CHECK: %[[USST:.*]] = getelementptr i8, i8* %[[USP]], i32 -16
13
14  ; CHECK: store i8* %[[USST]], i8** @__safestack_unsafe_stack_ptr
15
16  %a.addr = alloca i8*, align 8
17  %buf = alloca [16 x i8], align 16
18
19  ; CHECK: %[[AADDR:.*]] = alloca i8*, align 8
20  ; CHECK: store i8* {{.*}}, i8** %[[AADDR]], align 8
21  store i8* %a, i8** %a.addr, align 8
22
23  ; CHECK: %[[BUFPTR:.*]] = getelementptr i8, i8* %[[USP]], i32 -16
24  ; CHECK: %[[BUFPTR2:.*]] = bitcast i8* %[[BUFPTR]] to [16 x i8]*
25  ; CHECK: %[[GEP:.*]] = getelementptr inbounds [16 x i8], [16 x i8]* %[[BUFPTR2]], i32 0, i32 0
26  %gep = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0
27
28  ; CHECK: %[[A2:.*]] = load i8*, i8** %[[AADDR]], align 8
29  %a2 = load i8*, i8** %a.addr, align 8
30
31  ; CHECK: call i8* @strcpy(i8* %[[GEP]], i8* %[[A2]])
32  %call = call i8* @strcpy(i8* %gep, i8* %a2)
33
34  ; CHECK: store i8* %[[USP]], i8** @__safestack_unsafe_stack_ptr
35  ret void
36}
37
38declare i8* @strcpy(i8*, i8*)
39