[Nouveau] [Bug 71116] [any/all(?) cards below nv50(?)] libdrm built with gcc4.8 causes crashes/lockups during normal operation, and resume from disk/memory

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71116

--- Comment #24 from Maarten Lankhorst <bugs at mblankhorst.nl> ---
Because the function also increments the push->cur pointer, it's a subtle but
real difference:

gcc-4.7:

u32 ret = func(); // May change push->cur ptr
*push->cur = ret;
push->cur++;

gcc-4.8:
u32 *ptr = push->cur;
push->cur++;

*ptr = func(); // Already sees the push->cur ptr


I'm not a language expert, so no idea if I'm right, but it seems the updated
gcc-4.8 behavior is wrong here.

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