| Eric Christopher | cee313d | 2019-04-17 04:52:47 +0000 | [diff] [blame] | 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 | ; no safestack attribute |
| 7 | ; Requires no protector. |
| 8 | |
| 9 | ; CHECK-NOT: __safestack_unsafe_stack_ptr |
| 10 | |
| 11 | ; CHECK: @foo |
| 12 | define void @foo(i8* %a) nounwind uwtable { |
| 13 | entry: |
| 14 | ; CHECK-NOT: __safestack_unsafe_stack_ptr |
| 15 | %a.addr = alloca i8*, align 8 |
| 16 | %buf = alloca [16 x i8], align 16 |
| 17 | store i8* %a, i8** %a.addr, align 8 |
| 18 | %arraydecay = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0 |
| 19 | %0 = load i8*, i8** %a.addr, align 8 |
| 20 | %call = call i8* @strcpy(i8* %arraydecay, i8* %0) |
| 21 | %arraydecay1 = getelementptr inbounds [16 x i8], [16 x i8]* %buf, i32 0, i32 0 |
| 22 | %call2 = call i32 (i8*, ...) @printf(i8* getelementptr inbounds ([4 x i8], [4 x i8]* @.str, i32 0, i32 0), i8* %arraydecay1) |
| 23 | ret void |
| 24 | } |
| 25 | |
| 26 | declare i8* @strcpy(i8*, i8*) |
| 27 | declare i32 @printf(i8*, ...) |