xref: /llvm-project/llvm/test/Instrumentation/AddressSanitizer/byref-args.ll (revision 855fe35064674c4601ea9c659a015cacdcec9f63)
1; RUN: opt < %s -passes=asan -S | FileCheck %s
2
3; Test that for call instructions, the byref arguments are not
4; instrumented, as no copy is implied.
5
6target datalayout = "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"
7target triple = "x86_64-unknown-linux-gnu"
8
9%struct.bar = type { %struct.foo }
10%struct.foo = type { ptr, ptr, ptr }
11
12; CHECK-LABEL: @func2
13; CHECK-NEXT: tail call void @func1(
14; CHECK-NEXT: ret void
15define dso_local void @func2(ptr %foo) sanitize_address {
16  tail call void @func1(ptr byref(%struct.foo) align 8 %foo) #2
17  ret void
18}
19
20declare dso_local void @func1(ptr byref(%struct.foo) align 8)
21