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