1; RUN: opt < %s -msan-eager-checks -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck %s 2; RUN: opt < %s -msan-eager-checks -msan-check-access-address=0 -msan-track-origins=2 -S -passes=msan 2>&1 | FileCheck %s -check-prefixes=CHECK,CHECK-ORIGIN 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-S128" 4target triple = "x86_64-unknown-linux-gnu" 5 6declare noundef i8 @__sanitizer_unaligned_load8(ptr noundef) 7declare void @__sanitizer_unaligned_store8(ptr noundef, i8 noundef) 8 9define noundef i8 @unaligned_load(ptr noundef %ptr) sanitize_memory { 10; CHECK: @unaligned_load(ptr {{.*}}[[PTR:%.+]]) 11; CHECK: store i64 0, {{.*}} @__msan_param_tls 12; CHECK: [[VAL:%.*]] = call noundef i8 @__sanitizer_unaligned_load8(ptr noundef [[PTR]]) 13 %val = call noundef i8 @__sanitizer_unaligned_load8(ptr noundef %ptr) 14; CHECK: load {{.*}} @__msan_retval_tls 15; CHECK-ORIGIN: load {{.*}} @__msan_retval_origin_tls 16; CHECK: call void @__msan_warning_{{.*}}noreturn 17; CHECK: ret i8 [[VAL]] 18 ret i8 %val 19} 20 21define void @unaligned_store(ptr noundef %ptr, i8 noundef %val) sanitize_memory { 22; CHECK: @unaligned_store(ptr {{.*}}[[PTR:%.+]], i8 {{.*}}[[VAL:%.+]]) 23; CHECK: store i64 0, {{.*}} @__msan_param_tls 24; CHECK: store i8 0, {{.*}} @__msan_param_tls 25; CHECK: call void @__sanitizer_unaligned_store8(ptr noundef [[PTR]], i8 noundef [[VAL]]) 26 call void @__sanitizer_unaligned_store8(ptr noundef %ptr, i8 noundef %val) 27; CHECK: ret void 28 ret void 29} 30