recover-dedup.cpp
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// RUN: %clangxx -w -fsanitize=signed-integer-overflow,nullability-return,returns-nonnull-attribute -fsanitize-recover=all %s -o %t && %run %t 2>&1 | FileCheck %s
#include <stdint.h>
#include <stdio.h>
int *_Nonnull h() {
// CHECK: nullability-return
return NULL;
}
__attribute__((returns_nonnull))
int *i() {
// CHECK: nonnull-return
return NULL;
}
__attribute__((noinline))
int f(int x, int y) {
// CHECK: mul-overflow
return x * y;
}
__attribute__((noinline))
int g(int x, int y) {
// CHECK: mul-overflow
return x * (y + 1);
}
int main() {
h();
i();
int x = 2;
for (int i = 0; i < 10; ++i)
x = f(x, x);
x = 2;
for (int i = 0; i < 10; ++i)
x = g(x, x);
// CHECK-NOT: mul-overflow
}