| ; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s |
| ; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s |
| |
| ; array [4 x i8] |
| ; Requires protector. |
| |
| define void @foo(i8* %a) nounwind uwtable safestack { |
| entry: |
| ; CHECK: %[[USP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr |
| |
| ; CHECK: %[[USST:.*]] = getelementptr i8, i8* %[[USP]], i32 -16 |
| |
| ; CHECK: store i8* %[[USST]], i8** @__safestack_unsafe_stack_ptr |
| |
| ; CHECK: %[[AADDR:.*]] = alloca i8*, align 8 |
| %a.addr = alloca i8*, align 8 |
| |
| ; CHECK: %[[BUFPTR:.*]] = getelementptr i8, i8* %[[USP]], i32 -4 |
| ; CHECK: %[[BUFPTR2:.*]] = bitcast i8* %[[BUFPTR]] to [4 x i8]* |
| %buf = alloca [4 x i8], align 1 |
| |
| ; CHECK: store i8* {{.*}}, i8** %[[AADDR]], align 8 |
| store i8* %a, i8** %a.addr, align 8 |
| |
| ; CHECK: %[[GEP:.*]] = getelementptr inbounds [4 x i8], [4 x i8]* %[[BUFPTR2]], i32 0, i32 0 |
| %gep = getelementptr inbounds [4 x i8], [4 x i8]* %buf, i32 0, i32 0 |
| |
| ; CHECK: %[[A2:.*]] = load i8*, i8** %[[AADDR]], align 8 |
| %a2 = load i8*, i8** %a.addr, align 8 |
| |
| ; CHECK: call i8* @strcpy(i8* %[[GEP]], i8* %[[A2]]) |
| %call = call i8* @strcpy(i8* %gep, i8* %a2) |
| |
| ; CHECK: store i8* %[[USP]], i8** @__safestack_unsafe_stack_ptr |
| ret void |
| } |
| |
| declare i8* @strcpy(i8*, i8*) |
