1 ; Test marking string functions as nobuiltin in memory sanitizer.
3 ; RUN: opt < %s -S -passes=msan 2>&1 | FileCheck %s
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"
5 target triple = "x86_64-unknown-linux-gnu"
7 declare ptr @memchr(ptr %a, i32 %b, i64 %c)
8 declare i32 @memcmp(ptr %a, ptr %b, i64 %c)
9 declare i32 @strcmp(ptr %a, ptr %b)
10 declare ptr @strcpy(ptr %a, ptr %b)
11 declare ptr @stpcpy(ptr %a, ptr %b)
12 declare i64 @strlen(ptr %a)
13 declare i64 @strnlen(ptr %a, i64 %b)
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 }
24 define void @f1(ptr %a, ptr %b) nounwind uwtable sanitize_memory {
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)