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1; RUN: opt < %s -passes=tsan -S | FileCheck %s2 3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"4target triple = "x86_64-unknown-linux-gnu"5 6; no sanitize_thread attribute here7define i32 @read_4_bytes(ptr %a) {8entry:9 %tmp1 = load i32, ptr %a, align 410 ret i32 %tmp111}12 13; CHECK: define i32 @read_4_bytes(ptr %a) {14; CHECK-NEXT: entry:15; CHECK-NEXT: %tmp1 = load i32, ptr %a, align 416; CHECK: ret i32 %tmp117 18; no sanitize_thread attribute here19define i32 @read_4_bytes_and_call(ptr %a) {20entry:21 call void @foo()22 %tmp1 = load i32, ptr %a, align 423 ret i32 %tmp124}25 26; CHECK: define i32 @read_4_bytes_and_call(ptr %a) {27; CHECK-NEXT: entry:28; CHECK-NEXT: %0 = call ptr @llvm.returnaddress(i32 0)29; CHECK-NEXT: call void @__tsan_func_entry(ptr %0)30; CHECK-NEXT: call void @foo()31; CHECK-NEXT: %tmp1 = load i32, ptr %a, align 432; CHECK-NEXT: call void @__tsan_func_exit()33; CHECK-NEXT: ret i32 %tmp134 35declare void @foo() nounwind36 37