poisonRedZones(L.ShadowBytes, IRB, ShadowBase, true);
auto UnpoisonStack = [&](IRBuilder<> &IRB) {
+ // Do this always as poisonAlloca can be disabled with
+ // detect_stack_use_after_scope=0.
+ poisonRedZones(L.ShadowBytes, IRB, ShadowBase, false);
if (HavePoisonedStaticAllocas) {
// If we poisoned some allocas in llvm.lifetime analysis,
// unpoison whole stack frame now.
poisonAlloca(LocalStackBase, LocalStackSize, IRB, false);
- } else {
- poisonRedZones(L.ShadowBytes, IRB, ShadowBase, false);
}
};
; CHECK-UAS: call void @__asan_poison_stack_memory(i64 %{{[^ ]+}}, i64 1)
; Unpoison memory at function exit in UAS mode.
- ; CHECK-UAS: call void @__asan_unpoison_stack_memory(i64 %{{[^ ]+}}, i64 64)
- ; CHECK-UAS: ret void
-
+ ; CHECK-UAS: store i64 0
+ ; CHECK-UAS-NEXT: call void @__asan_unpoison_stack_memory(i64 %{{[^ ]+}}, i64 64)
+ ; CHECK-UAS: ret i32 0
ret i32 0
}
; CHECK: __asan_poison_stack_memory
ret void
- ; CHECK: __asan_unpoison_stack_memory
+ ; CHECK: store i64 0
+ ; CHECK: store i64 0
+ ; CHECK: store i64 0
+ ; CHECK: store i32 0
+ ; CHECK-NEXT: __asan_unpoison_stack_memory
}
define void @zero_sized(i64 %a) #0 {