| // RUN: %clang_cc1 -verify -S -emit-llvm -o- %s -isystem %S -DWITH_DECL | FileCheck --check-prefix=CHECK-WITH-DECL %s |
| // RUN: %clang_cc1 -verify -S -emit-llvm -o- %s -isystem %S -UWITH_DECL | FileCheck --check-prefix=CHECK-NO-DECL %s |
| // RUN: %clang_cc1 -verify -S -emit-llvm -o- %s -isystem %S -DWITH_SELF_REFERENCE_DECL | FileCheck --check-prefix=CHECK-SELF-REF-DECL %s |
| // |
| // CHECK-WITH-DECL-NOT: @llvm.memcpy |
| // CHECK-NO-DECL: @llvm.memcpy |
| // CHECK-SELF-REF-DECL: @llvm.memcpy |
| // |
| #include <memcpy-nobuiltin.inc> |
| void test(void *dest, void const *from, size_t n) { |
| memcpy(dest, from, n); |
| |
| static char buffer[1]; |
| memcpy(buffer, from, 2); // expected-warning {{'memcpy' will always overflow; destination buffer has size 1, but size argument is 2}} |
| } |