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1// RUN: %clang_dfsan -gmlt -mllvm -dfsan-track-origins=1 %s -o %t && \2// RUN: %run %t >%t.out 2>&13// RUN: FileCheck %s < %t.out4 5#include <sanitizer/dfsan_interface.h>6 7__attribute__((noinline)) uint64_t foo(uint64_t x, uint64_t y) { return x + y; }8 9int main(int argc, char *argv[]) {10 uint64_t a = 10;11 uint64_t b = 20;12 dfsan_set_label(8, &a, sizeof(a));13 uint64_t c = foo(a, b);14 for (int i = 0; i < argc; ++i)15 c += foo(c, b);16 dfsan_print_origin_trace(&c, NULL);17}18 19// CHECK: Taint value 0x8 {{.*}} origin tracking ()20// CHECK: Origin value: {{.*}}, Taint value was stored to memory at21// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-6]]22 23// CHECK: Origin value: {{.*}}, Taint value was stored to memory at24// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-11]]25 26// CHECK: Origin value: {{.*}}, Taint value was created at27// CHECK: #0 {{.*}} in main {{.*}}origin_branch.c:[[@LINE-15]]28