• Dmitriy Vyukov's avatar
    cmd/gc: fix undefined behavior · 1f580067
    Dmitriy Vyukov authored
    UndefinedBehaviorSanitizer claims it is UB in C:
    src/cmd/gc/racewalk.c:422:37: runtime error: member access within null pointer of type 'Node' (aka 'struct Node')
    src/cmd/gc/racewalk.c:423:37: runtime error: member access within null pointer of type 'Node' (aka 'struct Node')
    
    LGTM=rsc
    R=dave, rsc
    CC=golang-codereviews
    https://golang.org/cl/125570043
    1f580067
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