1; RUN: opt < %s -asan -asan-module -S | FileCheck %s 2target 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" 3target triple = "x86_64-unknown-linux-gnu" 4define i32 @read_4_bytes(i32* %a) sanitize_address { 5entry: 6 %tmp1 = load i32, i32* %a, align 4 7 ret i32 %tmp1 8} 9; CHECK-LABEL: @read_4_bytes 10; CHECK-NOT: ret 11; CHECK: lshr {{.*}} 3 12; Check for ASAN's Offset for 64-bit (7fff8000) 13; CHECK-NEXT: add{{.*}}2147450880 14; CHECK: ret 15 16define void @example_atomicrmw(i64* %ptr) nounwind uwtable sanitize_address { 17entry: 18 %0 = atomicrmw add i64* %ptr, i64 1 seq_cst 19 ret void 20} 21 22; CHECK-LABEL: @example_atomicrmw 23; CHECK: lshr {{.*}} 3 24; CHECK: __asan_report_store8 25; CHECK-NOT: __asan_report 26; CHECK: atomicrmw 27; CHECK: ret 28 29define void @example_cmpxchg(i64* %ptr, i64 %compare_to, i64 %new_value) nounwind uwtable sanitize_address { 30entry: 31 %0 = cmpxchg i64* %ptr, i64 %compare_to, i64 %new_value seq_cst seq_cst 32 ret void 33} 34 35; CHECK-LABEL: @example_cmpxchg 36; CHECK: lshr {{.*}} 3 37; CHECK: __asan_report_store8 38; CHECK-NOT: __asan_report 39; CHECK: cmpxchg 40; CHECK: ret 41