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- fix wrong registers getting saved when passing parameters by reference

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This commit is contained in:
Magnus Norddahl 2018-10-08 23:44:54 +02:00
parent d643fbd077
commit 367b60d88c
1 changed files with 11 additions and 10 deletions
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21
src/scripting/vm/jit_call.cpp
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@ -238,13 +238,14 @@ void JitCompiler::StoreInOuts(int b)
for (unsigned int i = ParamOpcodes.Size() - b; i < ParamOpcodes.Size(); i++)
{
asmjit::X86Gp stackPtr;
auto c = ParamOpcodes[i]->c;
switch (ParamOpcodes[i]->b)
{
case REGT_INT | REGT_ADDROF:
stackPtr = newTempIntPtr();
cc.mov(stackPtr, frameD);
cc.add(stackPtr, (int)(C * sizeof(int32_t)));
cc.mov(x86::dword_ptr(stackPtr), regD[C]);
cc.add(stackPtr, (int)(c * sizeof(int32_t)));
cc.mov(x86::dword_ptr(stackPtr), regD[c]);
break;
case REGT_STRING | REGT_ADDROF:
// We don't have to do anything in this case. String values are never moved to virtual registers.
@ -252,25 +253,25 @@ void JitCompiler::StoreInOuts(int b)
case REGT_POINTER | REGT_ADDROF:
stackPtr = newTempIntPtr();
cc.mov(stackPtr, frameA);
cc.add(stackPtr, (int)(C * sizeof(void*)));
cc.mov(x86::ptr(stackPtr), regA[C]);
cc.add(stackPtr, (int)(c * sizeof(void*)));
cc.mov(x86::ptr(stackPtr), regA[c]);
break;
case REGT_FLOAT | REGT_ADDROF:
stackPtr = newTempIntPtr();
cc.mov(stackPtr, frameF);
cc.add(stackPtr, (int)(C * sizeof(double)));
cc.movsd(x86::qword_ptr(stackPtr), regF[C]);
cc.add(stackPtr, (int)(c * sizeof(double)));
cc.movsd(x86::qword_ptr(stackPtr), regF[c]);
// When passing the address to a float we don't know if the receiving function will treat it as float, vec2 or vec3.
if ((unsigned int)C + 1 < regF.Size())
if ((unsigned int)c + 1 < regF.Size())
{
cc.add(stackPtr, (int)sizeof(double));
cc.movsd(x86::qword_ptr(stackPtr), regF[C + 1]);
cc.movsd(x86::qword_ptr(stackPtr), regF[c + 1]);
}
if ((unsigned int)C + 2 < regF.Size())
if ((unsigned int)c + 2 < regF.Size())
{
cc.add(stackPtr, (int)sizeof(double));
cc.movsd(x86::qword_ptr(stackPtr), regF[C + 2]);
cc.movsd(x86::qword_ptr(stackPtr), regF[c + 2]);
}
break;
default: