| ; RUN: opt < %s -msan-check-access-address=0 -S -passes=msan 2>&1 | FileCheck %s |
| ; RUN: opt < %s -msan-check-access-address=0 -msan-track-origins=2 -S -passes=msan 2>&1 | FileCheck %s -check-prefixes=CHECK,CHECK-ORIGIN |
| ; RUN: opt < %s -msan -msan-check-access-address=0 -S | FileCheck %s |
| 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-S128" |
| target triple = "x86_64-unknown-linux-gnu" |
| |
| declare void @__atomic_load(i64, i8*, i8*, i32) |
| declare void @__atomic_store(i64, i8*, i8*, i32) |
| |
| define i24 @odd_sized_load(i24* %ptr) sanitize_memory { |
| ; CHECK: @odd_sized_load(i24* {{.*}}[[PTR:%.+]]) |
| ; CHECK: [[VAL_PTR:%.*]] = alloca i24, align 1 |
| ; CHECK-ORIGIN: @__msan_set_alloca_origin |
| ; CHECK: [[VAL_PTR_I8:%.*]] = bitcast i24* [[VAL_PTR]] to i8* |
| ; CHECK: [[PTR_I8:%.*]] = bitcast i24* [[PTR]] to i8* |
| ; CHECK: call void @__atomic_load(i64 3, i8* [[PTR_I8]], i8* [[VAL_PTR_I8]], i32 2) |
| |
| ; CHECK: ptrtoint i8* [[PTR_I8]] |
| ; CHECK: xor |
| ; CHECK: [[SPTR_I8:%.*]] = inttoptr |
| ; CHECK-ORIGIN: add |
| ; CHECK-ORIGIN: and |
| ; CHECK-ORIGIN: [[OPTR:%.*]] = inttoptr |
| |
| ; CHECK: ptrtoint i8* [[VAL_PTR_I8]] |
| ; CHECK: xor |
| ; CHECK: [[VAL_SPTR_I8:%.*]] = inttoptr |
| ; CHECK-ORIGIN: add |
| ; CHECK-ORIGIN: and |
| ; CHECK-ORIGIN: [[VAL_OPTR:%.*]] = inttoptr |
| |
| ; CHECK: call void @llvm.memcpy{{.*}}(i8* align 1 [[VAL_SPTR_I8]], i8* align 1 [[SPTR_I8]], i64 3 |
| |
| ; CHECK-ORIGIN: [[ARG_ORIGIN:%.*]] = load i32, i32* [[OPTR]] |
| ; CHECK-ORIGIN: [[VAL_ORIGIN:%.*]] = call i32 @__msan_chain_origin(i32 [[ARG_ORIGIN]]) |
| ; CHECK-ORIGIN: call void @__msan_set_origin(i8* [[VAL_PTR_I8]], i64 3, i32 [[VAL_ORIGIN]]) |
| |
| ; CHECK: [[VAL:%.*]] = load i24, i24* [[VAL_PTR]] |
| ; CHECK: ret i24 [[VAL]] |
| %val_ptr = alloca i24, align 1 |
| %val_ptr_i8 = bitcast i24* %val_ptr to i8* |
| %ptr_i8 = bitcast i24* %ptr to i8* |
| call void @__atomic_load(i64 3, i8* %ptr_i8, i8* %val_ptr_i8, i32 0) |
| %val = load i24, i24* %val_ptr |
| ret i24 %val |
| } |
| |
| define void @odd_sized_store(i24* %ptr, i24 %val) sanitize_memory { |
| ; CHECK: @odd_sized_store(i24* {{.*}}[[PTR:%.+]], i24 {{.*}}[[VAL:%.+]]) |
| ; CHECK: [[VAL_PTR:%.*]] = alloca i24, align 1 |
| ; CHECK: store i24 [[VAL]], i24* [[VAL_PTR]] |
| ; CHECK: [[VAL_PTR_I8:%.*]] = bitcast i24* [[VAL_PTR]] to i8* |
| ; CHECK: [[PTR_I8:%.*]] = bitcast i24* [[PTR]] to i8* |
| |
| ; CHECK: ptrtoint i8* [[PTR_I8]] |
| ; CHECK: xor |
| ; CHECK: [[SPTR_I8:%.*]] = inttoptr |
| ; CHECK: call void @llvm.memset{{.*}}(i8* align 1 [[SPTR_I8]], i8 0, i64 3 |
| |
| ; CHECK: call void @__atomic_store(i64 3, i8* [[VAL_PTR_I8]], i8* [[PTR_I8]], i32 3) |
| ; CHECK: ret void |
| %val_ptr = alloca i24, align 1 |
| store i24 %val, i24* %val_ptr |
| %val_ptr_i8 = bitcast i24* %val_ptr to i8* |
| %ptr_i8 = bitcast i24* %ptr to i8* |
| call void @__atomic_store(i64 3, i8* %val_ptr_i8, i8* %ptr_i8, i32 0) |
| ret void |
| } |
| |