1; Test marking string functions as nobuiltin in memory sanitizer. 2; 3; RUN: opt < %s -S -passes=msan 2>&1 | FileCheck %s 4; RUN: opt < %s -msan -S | FileCheck %s 5target 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" 6target triple = "x86_64-unknown-linux-gnu" 7 8declare i8* @memchr(i8* %a, i32 %b, i64 %c) 9declare i32 @memcmp(i8* %a, i8* %b, i64 %c) 10declare i32 @strcmp(i8* %a, i8* %b) 11declare i8* @strcpy(i8* %a, i8* %b) 12declare i8* @stpcpy(i8* %a, i8* %b) 13declare i64 @strlen(i8* %a) 14declare i64 @strnlen(i8* %a, i64 %b) 15 16; CHECK: call{{.*}}@memchr{{.*}} #[[ATTR:[0-9]+]] 17; CHECK: call{{.*}}@memcmp{{.*}} #[[ATTR]] 18; CHECK: call{{.*}}@strcmp{{.*}} #[[ATTR]] 19; CHECK: call{{.*}}@strcpy{{.*}} #[[ATTR]] 20; CHECK: call{{.*}}@stpcpy{{.*}} #[[ATTR]] 21; CHECK: call{{.*}}@strlen{{.*}} #[[ATTR]] 22; CHECK: call{{.*}}@strnlen{{.*}} #[[ATTR]] 23; attributes #[[ATTR]] = { nobuiltin } 24 25define void @f1(i8* %a, i8* %b) nounwind uwtable sanitize_memory { 26 tail call i8* @memchr(i8* %a, i32 1, i64 12) 27 tail call i32 @memcmp(i8* %a, i8* %b, i64 12) 28 tail call i32 @strcmp(i8* %a, i8* %b) 29 tail call i8* @strcpy(i8* %a, i8* %b) 30 tail call i8* @stpcpy(i8* %a, i8* %b) 31 tail call i64 @strlen(i8* %a) 32 tail call i64 @strnlen(i8* %a, i64 12) 33 ret void 34} 35