1; RUN: opt < %s -passes=asan -S | FileCheck --check-prefixes=CHECK,CHECK-S3 %s 2; RUN: opt < %s -passes=asan -asan-mapping-scale=5 -S | FileCheck --check-prefixes=CHECK,CHECK-S5 %s 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" 5define i32 @read_4_bytes(ptr %a) sanitize_address { 6entry: 7 %tmp1 = load i32, ptr %a, align 4 8 ret i32 %tmp1 9} 10; CHECK-LABEL: @read_4_bytes 11; CHECK-NOT: ret 12; CHECK-S3: lshr {{.*}} 3 13; CHECK-S5: lshr {{.*}} 5 14; Check for ASAN's Offset for 64-bit (7fff8000|7ffe0000) 15; CHECK-S3-NEXT: add{{.*}}2147450880 16; CHECK-S5-NEXT: add{{.*}}2147352576 17; CHECK: ret 18 19define void @example_atomicrmw(ptr %ptr) nounwind uwtable sanitize_address { 20entry: 21 %0 = atomicrmw add ptr %ptr, i64 1 seq_cst 22 ret void 23} 24 25; CHECK-LABEL: @example_atomicrmw 26; CHECK-S3: lshr {{.*}} 3 27; CHECK-S5: lshr {{.*}} 5 28; CHECK: __asan_report_store8 29; CHECK-NOT: __asan_report 30; CHECK: atomicrmw 31; CHECK: ret 32 33define void @example_cmpxchg(ptr %ptr, i64 %compare_to, i64 %new_value) nounwind uwtable sanitize_address { 34entry: 35 %0 = cmpxchg ptr %ptr, i64 %compare_to, i64 %new_value seq_cst seq_cst 36 ret void 37} 38 39; CHECK-LABEL: @example_cmpxchg 40; CHECK-S3: lshr {{.*}} 3 41; CHECK-S5: lshr {{.*}} 5 42; CHECK: __asan_report_store8 43; CHECK-NOT: __asan_report 44; CHECK: cmpxchg 45; CHECK: ret 46