forked from OSchip/llvm-project
35 lines
963 B
C++
35 lines
963 B
C++
// RUN: %clangxx_msan -m64 -O0 %s -o %t && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O1 %s -o %t && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O2 %s -o %t && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O3 %s -o %t && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O0 %s -o %t -DCHECK_IN_F && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O1 %s -o %t -DCHECK_IN_F && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O2 %s -o %t -DCHECK_IN_F && %t >%t.out 2>&1
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// RUN: %clangxx_msan -m64 -O3 %s -o %t -DCHECK_IN_F && %t >%t.out 2>&1
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// Test that (no_sanitize_memory) functions
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// * don't check shadow values (-DCHECK_IN_F)
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// * treat all values loaded from memory as fully initialized (-UCHECK_IN_F)
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#include <stdlib.h>
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#include <stdio.h>
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__attribute__((noinline))
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__attribute__((no_sanitize_memory))
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int f(void) {
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int x;
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int * volatile p = &x;
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#ifdef CHECK_IN_F
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if (*p)
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exit(0);
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#endif
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return *p;
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}
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int main(void) {
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if (f())
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exit(0);
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return 0;
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}
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