| ; RUN: opt < %s -tsan -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 crashing the compiler. |
| ; 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_thread { |
| 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 @__tsan_read |
| ; CHECK-NOT: addrspacecast |
