1; Test marking string functions as nobuiltin in memory sanitizer. 2; 3; RUN: opt < %s -msan -S | FileCheck %s 4target 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 i8* @memchr(i8* %a, i32 %b, i64 %c) 8declare i32 @memcmp(i8* %a, i8* %b, i64 %c) 9declare i32 @strcmp(i8* %a, i8* %b) 10declare i8* @strcpy(i8* %a, i8* %b) 11declare i8* @stpcpy(i8* %a, i8* %b) 12declare i64 @strlen(i8* %a) 13declare i64 @strnlen(i8* %a, i64 %b) 14 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(i8* %a, i8* %b) nounwind uwtable sanitize_memory { 25 tail call i8* @memchr(i8* %a, i32 1, i64 12) 26 tail call i32 @memcmp(i8* %a, i8* %b, i64 12) 27 tail call i32 @strcmp(i8* %a, i8* %b) 28 tail call i8* @strcpy(i8* %a, i8* %b) 29 tail call i8* @stpcpy(i8* %a, i8* %b) 30 tail call i64 @strlen(i8* %a) 31 tail call i64 @strnlen(i8* %a, i64 12) 32 ret void 33} 34