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; RUN: opt < %s -passes=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[]) {
; ptr__attribute__((address_space(256))) *gs_base = (((ptr __attribute__((address_space(256))) *)0));
; ptr somevalue = gs_base[-1];
; return somevalue;
; }
define i32 @foo(i32 %argc, ptr %argv) sanitize_thread {
entry:
%retval = alloca i32, align 4
%argc.addr = alloca i32, align 4
%argv.addr = alloca ptr, align 8
%gs_base = alloca ptr addrspace(256), align 8
%somevalue = alloca ptr, align 8
store i32 0, ptr %retval, align 4
store i32 %argc, ptr %argc.addr, align 4
store ptr %argv, ptr %argv.addr, align 8
store ptr addrspace(256) null, ptr %gs_base, align 8
%0 = load ptr addrspace(256), ptr %gs_base, align 8
%arrayidx = getelementptr inbounds ptr, ptr addrspace(256) %0, i64 -1
%1 = load ptr, ptr addrspace(256) %arrayidx, align 8
store ptr %1, ptr %somevalue, align 8
%2 = load ptr, ptr %somevalue, align 8
%3 = ptrtoint ptr %2 to i32
ret i32 %3
}
; CHECK-NOT: call void @__tsan_read
; CHECK-NOT: addrspacecast
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