| ; 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 |
| |
| %struct.__jmp_buf_tag = type { [8 x i64], i32, %struct.__sigset_t } |
| %struct.__sigset_t = type { [16 x i64] } |
| |
| @.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1 |
| @buf = internal global [1 x %struct.__jmp_buf_tag] zeroinitializer, align 16 |
| |
| ; setjmp/longjmp test. |
| ; Requires protector. |
| define i32 @foo() nounwind uwtable safestack { |
| entry: |
| ; CHECK: %[[SP:.*]] = load i8*, i8** @__safestack_unsafe_stack_ptr |
| ; CHECK: %[[STATICTOP:.*]] = getelementptr i8, i8* %[[SP]], i32 -16 |
| %retval = alloca i32, align 4 |
| %x = alloca i32, align 4 |
| store i32 0, i32* %retval |
| store i32 42, i32* %x, align 4 |
| %call = call i32 @_setjmp(%struct.__jmp_buf_tag* getelementptr inbounds ([1 x %struct.__jmp_buf_tag], [1 x %struct.__jmp_buf_tag]* @buf, i32 0, i32 0)) returns_twice |
| ; CHECK: setjmp |
| ; CHECK-NEXT: store i8* %[[STATICTOP]], i8** @__safestack_unsafe_stack_ptr |
| %tobool = icmp ne i32 %call, 0 |
| br i1 %tobool, label %if.else, label %if.then |
| if.then: ; preds = %entry |
| call void @funcall(i32* %x) |
| br label %if.end |
| if.else: ; preds = %entry |
| call i32 (...) @dummy() |
| br label %if.end |
| if.end: ; preds = %if.else, %if.then |
| ret i32 0 |
| } |
| |
| declare i32 @_setjmp(%struct.__jmp_buf_tag*) |
| declare void @funcall(i32*) |
| declare i32 @dummy(...) |
