[Issue 22597] New: importC: Segmentation fault initializing va_list with __builtin_va_start

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=22597

          Issue ID: 22597
           Summary: importC: Segmentation fault initializing va_list with
                    __builtin_va_start
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Severity: blocker
          Priority: P1
         Component: dmd
          Assignee: nobody at puremagic.com
          Reporter: ibuclaw at gdcproject.org

---
int test(const char *format, ...)
{
    va_list va;
    __builtin_va_start(va,format);  // here
    char buf[32];
    int ret = vsprintf(buf, format, va);
    __builtin_va_end(va);
    return ret;
}

int main()
{
    if (test(", %s!", "hello") != 8)
    {
        printf("test failed\n");
        return 1;
    }
    return 0;
}
---

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