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- workaround bug in asmjit's register allocator for calls where the return register is already allocated in a physical register needed by one of the call arguments

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This commit is contained in:
Magnus Norddahl 2018-10-07 06:29:54 +02:00
commit d47988202a
5 changed files with 78 additions and 27 deletions
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16
src/scripting/vm/jit_load.cpp
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@ -90,9 +90,11 @@ void JitCompiler::EmitMETA()
EmitThrowException(X_READ_NIL);
cc.bind(label);
auto result = cc.newIntPtr();
auto call = CreateCall<uint8_t*, DObject*>([](DObject *o) { return o->GetClass()->Meta; });
call->setRet(0, regA[A]);
call->setRet(0, result);
call->setArg(0, regA[B]);
cc.mov(regA[A], result);
}
void JitCompiler::EmitCLSS()
@ -103,9 +105,11 @@ void JitCompiler::EmitCLSS()
EmitThrowException(X_READ_NIL);
cc.bind(label);
auto result = cc.newIntPtr();
auto call = CreateCall<PClass*, DObject*>([](DObject *o) { return o->GetClass(); });
call->setRet(0, regA[A]);
call->setRet(0, result);
call->setArg(0, regA[B]);
cc.mov(regA[A], result);
}
/////////////////////////////////////////////////////////////////////////////
@ -222,9 +226,11 @@ void JitCompiler::EmitLO()
auto ptr = cc.newIntPtr();
cc.mov(ptr, asmjit::x86::ptr(regA[B], konstd[C]));
auto result = cc.newIntPtr();
auto call = CreateCall<DObject*,DObject*>([](DObject *p) { return GC::ReadBarrier(p); });
call->setRet(0, regA[A]);
call->setRet(0, result);
call->setArg(0, ptr);
cc.mov(regA[A], result);
}
void JitCompiler::EmitLO_R()
@ -234,9 +240,11 @@ void JitCompiler::EmitLO_R()
auto ptr = cc.newIntPtr();
cc.mov(ptr, asmjit::x86::ptr(regA[B], regD[C]));
auto result = cc.newIntPtr();
auto call = CreateCall<DObject*, DObject*>([](DObject *p) { return GC::ReadBarrier(p); });
call->setRet(0, regA[A]);
call->setRet(0, result);
call->setArg(0, ptr);
cc.mov(regA[A], result);
}
void JitCompiler::EmitLP()