diff options
Diffstat (limited to 'test/CodeGen/X86/stack-protector.ll')
| -rw-r--r-- | test/CodeGen/X86/stack-protector.ll | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/test/CodeGen/X86/stack-protector.ll b/test/CodeGen/X86/stack-protector.ll new file mode 100644 index 0000000..f0fc4dd --- /dev/null +++ b/test/CodeGen/X86/stack-protector.ll @@ -0,0 +1,25 @@ +; RUN: llc -march=x86 < %s -o - | grep {__stack_chk_guard} +; RUN: llc -march=x86 < %s -o - | grep {__stack_chk_fail} + +@"\01LC" = internal constant [11 x i8] c"buf == %s\0A\00" ; <[11 x i8]*> [#uses=1] + +define void @test(i8* %a) nounwind ssp { +entry: + %a_addr = alloca i8* ; <i8**> [#uses=2] + %buf = alloca [8 x i8] ; <[8 x i8]*> [#uses=2] + %"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0] + store i8* %a, i8** %a_addr + %buf1 = bitcast [8 x i8]* %buf to i8* ; <i8*> [#uses=1] + %0 = load i8** %a_addr, align 4 ; <i8*> [#uses=1] + %1 = call i8* @strcpy(i8* %buf1, i8* %0) nounwind ; <i8*> [#uses=0] + %buf2 = bitcast [8 x i8]* %buf to i8* ; <i8*> [#uses=1] + %2 = call i32 (i8*, ...)* @printf(i8* getelementptr ([11 x i8]* @"\01LC", i32 0, i32 0), i8* %buf2) nounwind ; <i32> [#uses=0] + br label %return + +return: ; preds = %entry + ret void +} + +declare i8* @strcpy(i8*, i8*) nounwind + +declare i32 @printf(i8*, ...) nounwind |