2016-09-17 06:56:12 +08:00
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// REQUIRES: x86-registered-target
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2016-09-17 06:26:45 +08:00
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=MEMSET %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin -O1 -S -o - %s | FileCheck -check-prefix=NOSTRCPY -check-prefix=NOMEMSET %s
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -fno-builtin-memset -O1 -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=NOMEMSET %s
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2012-08-02 01:02:30 +08:00
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2017-07-25 18:46:07 +08:00
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// RUN: %clang_cc1 -triple x86_64-linux-gnu -O1 -fexperimental-new-pass-manager -S -o - %s | FileCheck -check-prefix=STRCPY -check-prefix=MEMSET %s
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// 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
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// 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
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2012-08-02 20:12:26 +08:00
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void PR13497() {
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2012-08-02 01:02:30 +08:00
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char content[2];
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2012-08-02 20:12:26 +08:00
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// make sure we don't optimize this call to strcpy()
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2016-09-17 06:05:53 +08:00
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// STRCPY-NOT: __strcpy_chk
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// NOSTRCPY: __strcpy_chk
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2012-08-02 01:02:30 +08:00
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__builtin___strcpy_chk(content, "", 1);
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}
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2016-01-06 22:35:46 +08:00
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void PR4941(char *s) {
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// Make sure we don't optimize this loop to a memset().
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2016-09-17 06:05:53 +08:00
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// NOMEMSET-NOT: memset
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// MEMSET: memset
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2016-01-06 22:35:46 +08:00
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for (unsigned i = 0; i < 8192; ++i)
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s[i] = 0;
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}
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