test/CodeGen/stack-protector.c

// RUN: clang-cc -emit-llvm -o - %s -stack-protector=0 | FileCheck -check-prefix=NOSSP %s
// NOSSP: define void @test1(i8* %msg) nounwind {
// RUN: clang-cc -emit-llvm -o - %s -stack-protector=1 | FileCheck -check-prefix=WITHSSP %s
// WITHSSP: define void @test1(i8* %msg) nounwind ssp {
// RUN: clang-cc -emit-llvm -o - %s -stack-protector=2 | FileCheck -check-prefix=SSPREQ %s
// SSPREQ: define void @test1(i8* %msg) nounwind sspreq {

int printf(const char * _Format, ...);

void test1(const char *msg) {
  char a[strlen(msg) + 1];
  strcpy(a, msg);
  printf("%s\n", a);
}