1 ; RUN: opt < %s -tsan -S | FileCheck %s 2 3 target 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" 4 target triple = "x86_64-unknown-linux-gnu" 5 6 ; no sanitize_thread attribute here 7 define i32 @read_4_bytes(i32* %a) { 8 entry: 9 %tmp1 = load i32, i32* %a, align 4 10 ret i32 %tmp1 11 } 12 13 ; CHECK: define i32 @read_4_bytes(i32* %a) { 14 ; CHECK-NEXT: entry: 15 ; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 4 16 ; CHECK: ret i32 %tmp1 17 18 ; no sanitize_thread attribute here 19 define i32 @read_4_bytes_and_call(i32* %a) { 20 entry: 21 call void @foo() 22 %tmp1 = load i32, i32* %a, align 4 23 ret i32 %tmp1 24 } 25 26 ; CHECK: define i32 @read_4_bytes_and_call(i32* %a) { 27 ; CHECK-NEXT: entry: 28 ; CHECK-NEXT: %0 = call i8* @llvm.returnaddress(i32 0) 29 ; CHECK-NEXT: call void @__tsan_func_entry(i8* %0) 30 ; CHECK-NEXT: call void @foo() 31 ; CHECK-NEXT: %tmp1 = load i32, i32* %a, align 4 32 ; CHECK-NEXT: call void @__tsan_func_exit() 33 ; CHECK-NEXT: ret i32 %tmp1 34 35 declare void @foo() 36 37
