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Fix mad opdesc allocation errors by swapping out lower opdescs

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This commit is contained in:
fincs 2017-03-18 20:40:29 +01:00
parent caf06d4896
commit 346f761609
1 changed files with 33 additions and 1 deletions
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34
source/picasso_assembler.cpp
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@ -16,6 +16,7 @@ int g_stackPos;
int g_opdescTable[MAX_OPDESC];
int g_opdescCount;
int g_opdescMasks[MAX_OPDESC];
u32 g_opdescIsMad;
Uniform g_uniformTable[MAX_UNIFORM];
int g_uniformCount;
@ -630,6 +631,26 @@ static int findOrAddOpdesc(int opcode, int& out, int opdesc, int mask)
return 0;
}
static void swapOpdesc(u32 from, u32 to)
{
std::swap(g_opdescTable[from], g_opdescTable[to]);
std::swap(g_opdescMasks[from], g_opdescMasks[to]);
for (size_t i = 0; i < BUF.size(); i ++)
{
u32& opword = BUF[i];
u32 opcode = opword>>26;
if (opcode < 0x20 || (opcode&~1)==MAESTRO_CMP)
{
u32 cur_opdesc = opword & 0x7F;
if (cur_opdesc==from)
cur_opdesc=to;
else if (cur_opdesc==to)
cur_opdesc=from;
opword = (opword &~ 0x7F) | cur_opdesc;
}
}
}
static inline bool isregp(int x)
{
x = tolower(x);
@ -962,7 +983,18 @@ DEF_COMMAND(format5)
safe_call(findOrAddOpdesc(opcode, opdesc, OPDESC_MAKE(maskFromSwizzling(rDestSw), rSrc1Sw, rSrc2Sw, rSrc3Sw), OPDESC_MASK_D123));
if (opdesc >= 32)
return throwError("opdesc allocation error\n");
{
int which;
for (which; which < 32; which ++)
if (!(g_opdescIsMad & BIT(which)))
break;
if (which == 32)
return throwError("opdesc allocation error\n");
swapOpdesc(which, opdesc);
opdesc = which;
}
g_opdescIsMad |= BIT(opdesc);
#ifdef DEBUG
printf("%s:%02X d%02X, d%02X, d%02X, d%02X (0x%X)\n", cmdName, opcode, rDest, rSrc1, rSrc2, rSrc3, opdesc);