llvm.org GIT mirror llvm / c4ae87a
A simple test for stack protectors. This should be valid on all platforms. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@59505 91177308-0d34-0410-b5e6-96231b3b80d8 Bill Wendling 11 years ago
1 changed file(s) with 25 addition(s) and 0 deletion(s). Raw diff Collapse all Expand all
0 ; RUN: llvm-as < %s | llc -o - | grep {__stack_chk_guard}
1 ; RUN: llvm-as < %s | llc -o - | grep {__stack_chk_fail}
2
3 @"\01LC" = internal constant [11 x i8] c"buf == %s\0A\00" ; <[11 x i8]*> [#uses=1]
4
5 define void @test(i8* %a) nounwind ssp {
6 entry:
7 %a_addr = alloca i8* ; [#uses=2]
8 %buf = alloca [8 x i8] ; <[8 x i8]*> [#uses=2]
9 %"alloca point" = bitcast i32 0 to i32 ; [#uses=0]
10 store i8* %a, i8** %a_addr
11 %buf1 = bitcast [8 x i8]* %buf to i8* ; [#uses=1]
12 %0 = load i8** %a_addr, align 4 ; [#uses=1]
13 %1 = call i8* @strcpy(i8* %buf1, i8* %0) nounwind ; [#uses=0]
14 %buf2 = bitcast [8 x i8]* %buf to i8* ; [#uses=1]
15 %2 = call i32 (i8*, ...)* @printf(i8* getelementptr ([11 x i8]* @"\01LC", i32 0, i32 0), i8* %buf2) nounwind ; [#uses=0]
16 br label %return
17
18 return: ; preds = %entry
19 ret void
20 }
21
22 declare i8* @strcpy(i8*, i8*) nounwind
23
24 declare i32 @printf(i8*, ...) nounwind