Sign of INT64_MIN is wrong

[Timothy_Gu]

Hi, the follow program exits with code 1 on x86_64 at least, although from the look of code x86 could be affected as well.

#include <stdint.h>

int main() {
    int64_t test = 5;
    if (test < INT64_MIN)
        return 1;
    return 0;
}

A patch that fixes this issue is attached.

This is a regression since 1d13a60901 (hrev48499).

[Timothy_Gu]

Patch fixing the issue

[korli]

Applied in hrev48532. Thanks!