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