1 ; RUN: opt < %s -asan -S | FileCheck %s
2 target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
3 target triple = "x86_64-apple-macosx10.11.0"
5 ; Checks that we do not instrument loads and stores comming from custom address space.
6 ; These result in invalid (false positive) reports.
7 ; int foo(int argc, const char * argv[]) {
8 ; void *__attribute__((address_space(256))) *gs_base = (((void * __attribute__((address_space(256))) *)0));
9 ; void *somevalue = gs_base[-1];
13 define i32 @foo(i32 %argc, i8** %argv) sanitize_address {
15 %retval = alloca i32, align 4
16 %argc.addr = alloca i32, align 4
17 %argv.addr = alloca i8**, align 8
18 %gs_base = alloca i8* addrspace(256)*, align 8
19 %somevalue = alloca i8*, align 8
20 store i32 0, i32* %retval, align 4
21 store i32 %argc, i32* %argc.addr, align 4
22 store i8** %argv, i8*** %argv.addr, align 8
23 store i8* addrspace(256)* null, i8* addrspace(256)** %gs_base, align 8
24 %0 = load i8* addrspace(256)*, i8* addrspace(256)** %gs_base, align 8
25 %arrayidx = getelementptr inbounds i8*, i8* addrspace(256)* %0, i64 -1
26 %1 = load i8*, i8* addrspace(256)* %arrayidx, align 8
27 store i8* %1, i8** %somevalue, align 8
28 %2 = load i8*, i8** %somevalue, align 8
29 %3 = ptrtoint i8* %2 to i32
32 ; CHECK-NOT: call void @__asan_report_load8