| // REQUIRES: x86-registered-target |
| |
| // RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=MEMSET %s |
| // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin -O1 -S -o - %s | FileCheck -check-prefix=NOSTRCPY -check-prefix=NOMEMSET %s |
| // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin-memset -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=NOMEMSET %s |
| |
| void PR13497(void) { |
| char content[2]; |
| // make sure we don't optimize this call to strcpy() |
| // STRCPY-NOT: __strcpy_chk |
| // NOSTRCPY: __strcpy_chk |
| __builtin___strcpy_chk(content, "", 1); |
| } |
| |
| void PR4941(char *s) { |
| // Make sure we don't optimize this loop to a memset(). |
| // NOMEMSET-NOT: memset |
| // MEMSET: memset |
| for (unsigned i = 0; i < 8192; ++i) |
| s[i] = 0; |
| } |
