forked from OSchip/llvm-project
64 lines
1.7 KiB
LLVM
64 lines
1.7 KiB
LLVM
; 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
|
|
|
|
define void @bad_store() nounwind uwtable safestack {
|
|
entry:
|
|
; CHECK-LABEL: @bad_store(
|
|
; CHECK: __safestack_unsafe_stack_ptr
|
|
; CHECK: ret void
|
|
%a = alloca i32, align 4
|
|
%0 = ptrtoint i32* %a to i64
|
|
%1 = inttoptr i64 %0 to i64*
|
|
store i64 zeroinitializer, i64* %1
|
|
ret void
|
|
}
|
|
|
|
define void @good_store() nounwind uwtable safestack {
|
|
entry:
|
|
; CHECK-LABEL: @good_store(
|
|
; CHECK-NOT: __safestack_unsafe_stack_ptr
|
|
; CHECK: ret void
|
|
%a = alloca i32, align 4
|
|
%0 = bitcast i32* %a to i8*
|
|
store i8 zeroinitializer, i8* %0
|
|
ret void
|
|
}
|
|
|
|
define void @overflow_gep_store() nounwind uwtable safestack {
|
|
entry:
|
|
; CHECK-LABEL: @overflow_gep_store(
|
|
; CHECK: __safestack_unsafe_stack_ptr
|
|
; CHECK: ret void
|
|
%a = alloca i32, align 4
|
|
%0 = bitcast i32* %a to i8*
|
|
%1 = getelementptr i8, i8* %0, i32 4
|
|
store i8 zeroinitializer, i8* %1
|
|
ret void
|
|
}
|
|
|
|
define void @underflow_gep_store() nounwind uwtable safestack {
|
|
entry:
|
|
; CHECK-LABEL: @underflow_gep_store(
|
|
; CHECK: __safestack_unsafe_stack_ptr
|
|
; CHECK: ret void
|
|
%a = alloca i32, align 4
|
|
%0 = bitcast i32* %a to i8*
|
|
%1 = getelementptr i8, i8* %0, i32 -1
|
|
store i8 zeroinitializer, i8* %1
|
|
ret void
|
|
}
|
|
|
|
define void @good_gep_store() nounwind uwtable safestack {
|
|
entry:
|
|
; CHECK-LABEL: @good_gep_store(
|
|
; CHECK-NOT: __safestack_unsafe_stack_ptr
|
|
; CHECK: ret void
|
|
%a = alloca i32, align 4
|
|
%0 = bitcast i32* %a to i8*
|
|
%1 = getelementptr i8, i8* %0, i32 3
|
|
store i8 zeroinitializer, i8* %1
|
|
ret void
|
|
}
|