1; Verify that calls with !nosanitize are not instrumented by MSan. 2; RUN: opt < %s -S -passes=msan 2>&1 | FileCheck %s 3; RUN: opt < %s -msan -S | FileCheck %s 4; RUN: opt < %s -msan-track-origins=1 -S -passes=msan 2>&1 | FileCheck %s 5; RUN: opt < %s -msan -msan-track-origins=1 -S | FileCheck %s 6target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" 7target triple = "x86_64-unknown-linux-gnu" 8 9declare void @bar(i32 %x) 10 11define void @foo() { 12 call void @bar(i32 7), !nosanitize !{} 13 ret void 14} 15 16; CHECK-LABEL: define void @foo 17; CHECK-NOT: store {{.*}} @__msan_param_tls 18; CHECK: call void @bar 19; CHECK: ret void 20 21 22@__sancov_gen_ = private global [1 x i8] zeroinitializer, section "__sancov_cntrs", align 1 23define void @sancov() sanitize_memory { 24entry: 25 %0 = load i8, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @__sancov_gen_, i64 0, i64 0), !nosanitize !{} 26 %1 = add i8 %0, 1 27 store i8 %1, i8* getelementptr inbounds ([1 x i8], [1 x i8]* @__sancov_gen_, i64 0, i64 0), !nosanitize !{} 28 ret void 29} 30 31; CHECK-LABEL: define void @sancov 32; CHECK-NOT: xor 33; CHECK-NOT: 87960930222080 34; CHECK: ret void 35 36 37define void @load_store() sanitize_memory { 38entry: 39 %x = alloca i32, align 4, !nosanitize !{} 40 store i32 4, i32* %x, align 4, !nosanitize !{} 41 %0 = load i32, i32* %x, align 4, !nosanitize !{} 42 %add = add nsw i32 %0, %0 43 store i32 %add, i32* %x, align 4, !nosanitize !{} 44 ret void 45} 46 47; CHECK-LABEL: define void @load_store 48; CHECK-NOT: xor 49; CHECK-NOT: 87960930222080 50; CHECK: ret void 51