select_float_origin.cpp
823 Bytes
// Regression test for origin propagation in "select i1, float, float".
// https://code.google.com/p/memory-sanitizer/issues/detail?id=78
// RUN: %clangxx_msan -O2 -fsanitize-memory-track-origins %s -o %t && not %run %t >%t.out 2>&1
// RUN: FileCheck %s < %t.out
// RUN: %clangxx_msan -O2 -fsanitize-memory-track-origins=2 %s -o %t && not %run %t >%t.out 2>&1
// RUN: FileCheck %s < %t.out
#include <stdio.h>
#include <sanitizer/msan_interface.h>
int main() {
volatile bool b = true;
float x, y;
__msan_allocated_memory(&x, sizeof(x));
__msan_allocated_memory(&y, sizeof(y));
float z = b ? x : y;
if (z > 0) printf(".\n");
// CHECK: Memory was marked as uninitialized
// CHECK: {{#0 0x.* in .*__msan_allocated_memory}}
// CHECK: {{#1 0x.* in main .*select_float_origin.cpp:}}[[@LINE-6]]
return 0;
}