1 ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=1 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS1 %s 2 ; RUN: opt < %s -msan -msan-check-access-address=0 -msan-track-origins=2 -S | FileCheck -check-prefix=CHECK -check-prefix=CHECK-ORIGINS2 %s 3 4 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" 5 target triple = "x86_64-unknown-linux-gnu" 6 7 8 ; Check origin instrumentation of stores. 9 ; Check that debug info for origin propagation code is set correctly. 10 11 @a8 = global i8 0, align 8 12 @a4 = global i8 0, align 4 13 @a2 = global i8 0, align 2 14 @a1 = global i8 0, align 1 15 16 ; 8-aligned store => 8-aligned origin store, origin address is not realigned 17 define void @Store8(i8 %x) sanitize_memory { 18 entry: 19 store i8 %x, i8* @a8, align 8 20 ret void 21 } 22 23 ; CHECK-LABEL: @Store8 24 ; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 25 ; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 26 ; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]]) 27 ; CHECK: store i32 [[ORIGIN]], {{.*}}, align 8 28 ; CHECK: ret void 29 30 31 ; 4-aligned store => 4-aligned origin store, origin address is not realigned 32 define void @Store4(i8 %x) sanitize_memory { 33 entry: 34 store i8 %x, i8* @a4, align 4 35 ret void 36 } 37 38 ; CHECK-LABEL: @Store4 39 ; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 40 ; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 41 ; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]]) 42 ; CHECK: store i32 [[ORIGIN]], {{.*}}, align 4 43 ; CHECK: ret void 44 45 46 ; 2-aligned store => 4-aligned origin store, origin address is realigned 47 define void @Store2(i8 %x) sanitize_memory { 48 entry: 49 store i8 %x, i8* @a2, align 2 50 ret void 51 } 52 53 ; CHECK-LABEL: @Store2 54 ; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 55 ; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 56 ; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]]) 57 ; CHECK: store i32 [[ORIGIN]], {{.*}}, align 4 58 ; CHECK: ret void 59 60 61 ; 1-aligned store => 4-aligned origin store, origin address is realigned 62 define void @Store1(i8 %x) sanitize_memory { 63 entry: 64 store i8 %x, i8* @a1, align 1 65 ret void 66 } 67 68 ; CHECK-LABEL: @Store1 69 ; CHECK-ORIGINS1: [[ORIGIN:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 70 ; CHECK-ORIGINS2: [[ORIGIN0:%[01-9a-z]+]] = load {{.*}} @__msan_param_origin_tls 71 ; CHECK-ORIGINS2: [[ORIGIN:%[01-9a-z]+]] = call i32 @__msan_chain_origin(i32 [[ORIGIN0]]) 72 ; CHECK: store i32 [[ORIGIN]], {{.*}}, align 4 73 74 ; CHECK: ret void 75
