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// RUN: clang-cc -triple x86_64-apple-darwin -S %s -o - | FileCheck %s
#define strcpy(dest, src) \
((__builtin_object_size(dest, 0) != -1ULL) \
? __builtin___strcpy_chk (dest, src, __builtin_object_size(dest, 1)) \
: __inline_strcpy_chk(dest, src))
static char *__inline_strcpy_chk (char *dest, const char *src) {
return __builtin___strcpy_chk(dest, src, __builtin_object_size(dest, 1));
}
char gbuf[63];
char *gp;
int gi, gj;
void test1() {
// CHECK: movabsq $59, %rdx
// CHECK-NEXT: movq %rax, %rdi
// CHECK-NEXT: movq %rcx, %rsi
// CHECK-NEXT: call ___strcpy_chk
strcpy(&gbuf[4], "Hi there");
}
void test2() {
// CHECK: movabsq $63, %rdx
// CHECK-NEXT: movq %rax, %rdi
// CHECK-NEXT: movq %rcx, %rsi
// CHECK-NEXT: call ___strcpy_chk
strcpy(gbuf, "Hi there");
}
void test3() {
// CHECK: movabsq $0, %rdx
// CHECK-NEXT: movq %rax, %rdi
// CHECK-NEXT: movq %rcx, %rsi
// CHECK-NEXT: call ___strcpy_chk
strcpy(&gbuf[100], "Hi there");
}
void test4() {
// CHECK: movabsq $0, %rdx
// CHECK-NEXT: movq %rax, %rdi
// CHECK-NEXT: movq %rcx, %rsi
// CHECK-NEXT: call ___strcpy_chk
strcpy((char*)(void*)&gbuf[-1], "Hi there");
}
void test5() {
// CHECK: movb $0, %al
// CHECK-NEXT testb %al, %al
// CHECK: call ___inline_strcpy_chk
strcpy(gp, "Hi there");
}
void test6() {
char buf[57];
// CHECK: movabsq $53, %rdx
// CHECK-NEXT: movq %rax, %rdi
// CHECK-NEXT: movq %rcx, %rsi
// CHECK-NEXT: call ___strcpy_chk
strcpy(&buf[4], "Hi there");
}
void test7() {
int i;
// CHECK-NOT: call ___strcpy_chk
// CHECK: call ___inline_strcpy_chk
strcpy((++i, gbuf), "Hi there");
}
void test8() {
char *buf[50];
// CHECK-NOT: call ___strcpy_chk
// CHECK: call ___inline_strcpy_chk
strcpy(buf[++gi], "Hi there");
}
void test9() {
// CHECK-NOT: call ___strcpy_chk
// CHECK: call ___inline_strcpy_chk
strcpy((char *)((++gi) + gj), "Hi there");
}
char **p;
void test10() {
// CHECK-NOT: call ___strcpy_chk
// CHECK: call ___inline_strcpy_chk
strcpy(*(++p), "Hi there");
}
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