1 ; RUN: opt < %s -asan -asan-module -S | FileCheck %s 2 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" 3 target triple = "x86_64-unknown-linux-gnu" 4 define i32 @read_4_bytes(i32* %a) sanitize_address { 5 entry: 6 %tmp1 = load 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 16 define void @example_atomicrmw(i64* %ptr) nounwind uwtable sanitize_address { 17 entry: 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 29 define void @example_cmpxchg(i64* %ptr, i64 %compare_to, i64 %new_value) nounwind uwtable sanitize_address { 30 entry: 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
