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1; Test marking string functions as nobuiltin in thread sanitizer.2;3; RUN: opt < %s -passes=tsan -S | FileCheck %s4target 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"5target triple = "x86_64-unknown-linux-gnu"6 7declare ptr @memchr(ptr %a, i32 %b, i64 %c) nounwind8declare i32 @memcmp(ptr %a, ptr %b, i64 %c) nounwind9declare i32 @strcmp(ptr %a, ptr %b) nounwind10declare ptr @strcpy(ptr %a, ptr %b) nounwind11declare ptr @stpcpy(ptr %a, ptr %b) nounwind12declare i64 @strlen(ptr %a) nounwind13declare i64 @strnlen(ptr %a, i64 %b) nounwind14 15; CHECK: call{{.*}}@memchr{{.*}} #[[ATTR:[0-9]+]]16; CHECK: call{{.*}}@memcmp{{.*}} #[[ATTR]]17; CHECK: call{{.*}}@strcmp{{.*}} #[[ATTR]]18; CHECK: call{{.*}}@strcpy{{.*}} #[[ATTR]]19; CHECK: call{{.*}}@stpcpy{{.*}} #[[ATTR]]20; CHECK: call{{.*}}@strlen{{.*}} #[[ATTR]]21; CHECK: call{{.*}}@strnlen{{.*}} #[[ATTR]]22; attributes #[[ATTR]] = { nobuiltin }23 24define void @f1(ptr %a, ptr %b) nounwind uwtable sanitize_thread {25 tail call ptr @memchr(ptr %a, i32 1, i64 12)26 tail call i32 @memcmp(ptr %a, ptr %b, i64 12)27 tail call i32 @strcmp(ptr %a, ptr %b)28 tail call ptr @strcpy(ptr %a, ptr %b)29 tail call ptr @stpcpy(ptr %a, ptr %b)30 tail call i64 @strlen(ptr %a)31 tail call i64 @strnlen(ptr %a, i64 12)32 ret void33}34