1 | // REQUIRES: x86-registered-target |
2 | |
3 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=MEMSET %s |
4 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin -O1 -S -o - %s | FileCheck -check-prefix=NOSTRCPY -check-prefix=NOMEMSET %s |
5 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin-memset -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=NOMEMSET %s |
6 | |
7 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=MEMSET %s |
8 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=NOSTRCPY -check-prefix=NOMEMSET %s |
9 | // RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin-memset -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=NOMEMSET %s |
10 | |
11 | void PR13497() { |
12 | char content[2]; |
13 | // make sure we don't optimize this call to strcpy() |
14 | // STRCPY-NOT: __strcpy_chk |
15 | // NOSTRCPY: __strcpy_chk |
16 | __builtin___strcpy_chk(content, "", 1); |
17 | } |
18 | |
19 | void PR4941(char *s) { |
20 | // Make sure we don't optimize this loop to a memset(). |
21 | // NOMEMSET-NOT: memset |
22 | // MEMSET: memset |
23 | for (unsigned i = 0; i < 8192; ++i) |
24 | s[i] = 0; |
25 | } |
26 | |