1; RUN: opt < %s -asan -enable-new-pm=0 -S | FileCheck %s 2; RUN: opt < %s -passes='asan-function-pipeline' -S | FileCheck %s 3target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" 4target triple = "x86_64-apple-macosx10.11.0" 5 6; Checks that we do not instrument loads and stores comming from custom address space. 7; These result in invalid (false positive) reports. 8; int foo(int argc, const char * argv[]) { 9; void *__attribute__((address_space(256))) *gs_base = (((void * __attribute__((address_space(256))) *)0)); 10; void *somevalue = gs_base[-1]; 11; return somevalue; 12; } 13 14define i32 @foo(i32 %argc, i8** %argv) sanitize_address { 15entry: 16 %retval = alloca i32, align 4 17 %argc.addr = alloca i32, align 4 18 %argv.addr = alloca i8**, align 8 19 %gs_base = alloca i8* addrspace(256)*, align 8 20 %somevalue = alloca i8*, align 8 21 store i32 0, i32* %retval, align 4 22 store i32 %argc, i32* %argc.addr, align 4 23 store i8** %argv, i8*** %argv.addr, align 8 24 store i8* addrspace(256)* null, i8* addrspace(256)** %gs_base, align 8 25 %0 = load i8* addrspace(256)*, i8* addrspace(256)** %gs_base, align 8 26 %arrayidx = getelementptr inbounds i8*, i8* addrspace(256)* %0, i64 -1 27 %1 = load i8*, i8* addrspace(256)* %arrayidx, align 8 28 store i8* %1, i8** %somevalue, align 8 29 %2 = load i8*, i8** %somevalue, align 8 30 %3 = ptrtoint i8* %2 to i32 31 ret i32 %3 32} 33; CHECK-NOT: call void @__asan_report_load8 34