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- Work around issue with tree-loop-vectorize in p_acs.cpp.

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This commit is contained in:
Braden Obrzut 2016-01-16 00:51:17 -05:00
parent f9ae304596
commit 8f31af3ff9
1 changed files with 6 additions and 3 deletions
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9
src/p_acs.cpp
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@ -1954,11 +1954,14 @@ bool FBehavior::Init(int lumpnum, FileReader * fr, int len)
int arraynum = MapVarStore[LittleLong(chunk[2])]; int arraynum = MapVarStore[LittleLong(chunk[2])];
if ((unsigned)arraynum < (unsigned)NumArrays) if ((unsigned)arraynum < (unsigned)NumArrays)
{ {
int initsize = MIN<int> (ArrayStore[arraynum].ArraySize, (LittleLong(chunk[1])-4)/4); // Use unsigned iterator here to avoid issue with GCC 4.9/5.x
// optimizer. Might be some undefined behavior in this code,
// but I don't know what it is.
unsigned int initsize = MIN<unsigned int> (ArrayStore[arraynum].ArraySize, (LittleLong(chunk[1])-4)/4);
SDWORD *elems = ArrayStore[arraynum].Elements; SDWORD *elems = ArrayStore[arraynum].Elements;
for (i = 0; i < initsize; ++i) for (unsigned int j = 0; j < initsize; ++j)
{ {
elems[i] = LittleLong(chunk[3+i]); elems[j] = LittleLong(chunk[3+j]);
} }
} }
chunk = (DWORD *)NextChunk((BYTE *)chunk); chunk = (DWORD *)NextChunk((BYTE *)chunk);