xref: /aosp_15_r20/external/llvm/test/Transforms/SafeStack/escape-casted-pointer.ll (revision 9880d6810fe72a1726cb53787c6711e909410d58)
1*9880d681SAndroid Build Coastguard Worker; RUN: opt -safe-stack -S -mtriple=i386-pc-linux-gnu < %s -o - | FileCheck %s
2*9880d681SAndroid Build Coastguard Worker; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck %s
3*9880d681SAndroid Build Coastguard Worker
4*9880d681SAndroid Build Coastguard Worker@.str = private unnamed_addr constant [4 x i8] c"%s\0A\00", align 1
5*9880d681SAndroid Build Coastguard Worker
6*9880d681SAndroid Build Coastguard Worker; Addr-of a casted pointer
7*9880d681SAndroid Build Coastguard Worker;  safestack attribute
8*9880d681SAndroid Build Coastguard Worker; Requires protector.
9*9880d681SAndroid Build Coastguard Workerdefine void @foo() nounwind uwtable safestack {
10*9880d681SAndroid Build Coastguard Workerentry:
11*9880d681SAndroid Build Coastguard Worker  ; CHECK: __safestack_unsafe_stack_ptr
12*9880d681SAndroid Build Coastguard Worker  %a = alloca i32*, align 8
13*9880d681SAndroid Build Coastguard Worker  %b = alloca float**, align 8
14*9880d681SAndroid Build Coastguard Worker  %call = call i32* @getp()
15*9880d681SAndroid Build Coastguard Worker  store i32* %call, i32** %a, align 8
16*9880d681SAndroid Build Coastguard Worker  %0 = bitcast i32** %a to float**
17*9880d681SAndroid Build Coastguard Worker  store float** %0, float*** %b, align 8
18*9880d681SAndroid Build Coastguard Worker  %1 = load float**, float*** %b, align 8
19*9880d681SAndroid Build Coastguard Worker  call void @funfloat2(float** %1)
20*9880d681SAndroid Build Coastguard Worker  ret void
21*9880d681SAndroid Build Coastguard Worker}
22*9880d681SAndroid Build Coastguard Worker
23*9880d681SAndroid Build Coastguard Workerdeclare void @funfloat2(float**)
24*9880d681SAndroid Build Coastguard Workerdeclare i32* @getp()
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