1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
; 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
@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
; PtrToInt/IntToPtr Cast
define void @IntToPtr() nounwind uwtable safestack {
entry:
; CHECK-LABEL: @IntToPtr(
; CHECK-NOT: __safestack_unsafe_stack_ptr
; CHECK: ret void
%a = alloca i32, align 4
%0 = ptrtoint i32* %a to i64
%1 = inttoptr i64 %0 to i32*
ret void
}
define i8 @BitCastNarrow() nounwind uwtable safestack {
entry:
; CHECK-LABEL: @BitCastNarrow(
; CHECK-NOT: __safestack_unsafe_stack_ptr
; CHECK: ret i8
%a = alloca i32, align 4
%0 = bitcast i32* %a to i8*
%1 = load i8, i8* %0, align 1
ret i8 %1
}
define i64 @BitCastWide() nounwind uwtable safestack {
entry:
; CHECK-LABEL: @BitCastWide(
; CHECK: __safestack_unsafe_stack_ptr
; CHECK: ret i64
%a = alloca i32, align 4
%0 = bitcast i32* %a to i64*
%1 = load i64, i64* %0, align 1
ret i64 %1
}
|
