39 lines · c
1// RUN: %clang_cc1 -emit-llvm -fms-extensions -o - %s | FileCheck %s2 3typedef typeof(sizeof(0)) size_t;4 5void bar(char *s);6void *memset(void *s, int c, size_t n);7void *memcpy(void *d, const void *s, size_t n);8 9// CHECK: define{{.*}} void @foo1({{.*}}) #[[NO_NOBUILTIN:[0-9]+]]10void foo1(char *s, char *d, size_t n) {11 bar(s);12 memset(s, 0, n);13 memcpy(d, s, n);14}15 16#pragma function(strlen, memset)17 18// CHECK: define{{.*}} void @foo2({{.*}}) #[[NOBUILTIN_MEMSET:[0-9]+]]19void foo2(char *s, char *d, size_t n) {20 bar(s);21 memset(s, 1, n);22 memcpy(d, s, n);23}24 25#pragma function(memcpy)26 27// CHECK: define{{.*}} void @foo3({{.*}}) #[[NOBUILTIN_MEMSET_MEMCPY:[0-9]+]]28void foo3(char *s, char *d, size_t n) {29 bar(s);30 memset(s, 2, n);31 memcpy(d, s, n);32}33 34// CHECK-NOT: attributes #[[NO_NOBUILTIN]] = {{{.*}}"no-builtin-memset"{{.*}}}35// CHECK-NOT: attributes #[[NO_NOBUILTIN]] = {{{.*}}"no-builtin-memcpy"{{.*}}"no-builtin-memset"{{.*}}}36// CHECK: attributes #[[NOBUILTIN_MEMSET]] = {{{.*}}"no-builtin-memset"{{.*}}}37// CHECK-NOT: attributes #[[NOBUILTIN_MEMSET]] = {{{.*}}"no-builtin-memcpy"{{.*}}"no-builtin-memset"{{.*}}}38// CHECK: attributes #[[NOBUILTIN_MEMSET_MEMCPY]] = {{{.*}}"no-builtin-memcpy"{{.*}}"no-builtin-memset"{{.*}}}39