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- some jump fixes

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This commit is contained in:
Magnus Norddahl 2018-09-09 22:03:57 +02:00
parent b40cbfb22e
commit 19442732d4
1 changed files with 15 additions and 10 deletions
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25
src/scripting/vm/jit.cpp
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@ -37,10 +37,11 @@ public:
Setup();
int size = sfunc->CodeSize;
for (int i = 0; i < size; i++)
pc = sfunc->Code;
auto end = pc + sfunc->CodeSize;
while (pc != end)
{
pc = sfunc->Code + i;
int i = (int)(ptrdiff_t)(pc - sfunc->Code);
op = pc->op;
cc.bind(labels[i]);
@ -53,6 +54,8 @@ public:
if (!opcodeFunc)
I_FatalError("JIT error: Unknown VM opcode %d\n", op);
(this->*opcodeFunc)();
pc++;
}
cc.endFunc();
@ -956,7 +959,7 @@ private:
{
int i = (int)(ptrdiff_t)(pc - sfunc->Code);
cc.cmp(regD[A], BC);
cc.jne(labels[i + 1]);
cc.jne(labels[i + 2]);
}
void EmitTESTN()
@ -964,7 +967,7 @@ private:
int bc = BC;
int i = (int)(ptrdiff_t)(pc - sfunc->Code);
cc.cmp(regD[A], -bc);
cc.jne(labels[i + 1]);
cc.jne(labels[i + 2]);
}
void EmitJMP()
@ -2728,7 +2731,7 @@ private:
using namespace asmjit;
FString funcname;
funcname.Format("Function: %1", sfunc->PrintableName.GetChars());
funcname.Format("Function: %s", sfunc->PrintableName.GetChars());
cc.comment(funcname.GetChars(), funcname.Len());
stack = cc.newIntPtr("stack"); // VMFrameStack *stack
@ -2820,8 +2823,8 @@ private:
auto jmplabel = labels[i + 2 + JMPOFS(pc + 1)];
cc.test(tmp, tmp);
if (check) cc.je(jmplabel);
else cc.jne(jmplabel);
if (check) cc.jne(jmplabel);
else cc.je(jmplabel);
pc++; // This instruction uses two instruction slots - skip the next one
}
@ -3046,18 +3049,20 @@ static void OutputJitLog(const asmjit::StringLogger &logger)
Printf("%s\n", pos);
}
//#define DEBUG_JIT
#define DEBUG_JIT
JitFuncPtr JitCompile(VMScriptFunction *sfunc)
{
#if defined(DEBUG_JIT)
if (strcmp(sfunc->Name.GetChars(), "EmptyFunction") != 0)
if (strcmp(sfunc->Name.GetChars(), "CanPickup") != 0)
return nullptr;
#else
if (!JitCompiler::CanJit(sfunc))
return nullptr;
#endif
Printf("Jitting function: %s\n", sfunc->PrintableName.GetChars());
using namespace asmjit;
StringLogger logger;
try