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Heuristically detecting ret - probably breaks some things.

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This commit is contained in:
Ben Vanik
2014-01-26 01:09:25 -08:00
parent c74f35552a
commit 8789fd4134
8 changed files with 135 additions and 34 deletions
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50
src/alloy/backend/ivm/ivm_intcode.cc
View File

@@ -728,6 +728,55 @@ int Translate_RETURN(TranslationContext& ctx, Instr* i) {
return DispatchToC(ctx, i, IntCode_RETURN);
}
uint32_t IntCode_RETURN_TRUE_I8(IntCodeState& ics, const IntCode* i) {
if (ics.rf[i->src1_reg].u8) {
return IA_RETURN;
}
return IA_NEXT;
}
uint32_t IntCode_RETURN_TRUE_I16(IntCodeState& ics, const IntCode* i) {
if (ics.rf[i->src1_reg].u16) {
return IA_RETURN;
}
return IA_NEXT;
}
uint32_t IntCode_RETURN_TRUE_I32(IntCodeState& ics, const IntCode* i) {
if (ics.rf[i->src1_reg].u32) {
return IA_RETURN;
}
return IA_NEXT;
}
uint32_t IntCode_RETURN_TRUE_I64(IntCodeState& ics, const IntCode* i) {
if (ics.rf[i->src1_reg].u64) {
return IA_RETURN;
}
return IA_NEXT;
}
uint32_t IntCode_RETURN_TRUE_F32(IntCodeState& ics, const IntCode* i) {
if (ics.rf[i->src1_reg].f32) {
return IA_RETURN;
}
return IA_NEXT;
}
uint32_t IntCode_RETURN_TRUE_F64(IntCodeState& ics, const IntCode* i) {
if (ics.rf[i->src1_reg].f64) {
return IA_RETURN;
}
return IA_NEXT;
}
int Translate_RETURN_TRUE(TranslationContext& ctx, Instr* i) {
static IntCodeFn fns[] = {
IntCode_RETURN_TRUE_I8,
IntCode_RETURN_TRUE_I16,
IntCode_RETURN_TRUE_I32,
IntCode_RETURN_TRUE_I64,
IntCode_RETURN_TRUE_F32,
IntCode_RETURN_TRUE_F64,
IntCode_INVALID_TYPE,
};
return DispatchToC(ctx, i, fns[i->src1.value->type]);
}
uint32_t IntCode_SET_RETURN_ADDRESS(IntCodeState& ics, const IntCode* i) {
ics.call_return_address = ics.rf[i->src1_reg].u32;
return IA_NEXT;
@@ -3978,6 +4027,7 @@ static const TranslateFn dispatch_table[] = {
Translate_CALL_INDIRECT,
Translate_CALL_INDIRECT_TRUE,
Translate_RETURN,
Translate_RETURN_TRUE,
Translate_SET_RETURN_ADDRESS,
Translate_BRANCH,

11
src/alloy/backend/x64/lowering/lowering_sequences.cc
View File

@@ -308,6 +308,17 @@ void alloy::backend::x64::lowering::RegisterSequences(LoweringTable* table) {
return true;
});
table->AddSequence(OPCODE_RETURN_TRUE, [](X64Emitter& e, Instr*& i) {
e.inLocalLabel();
CheckBoolean(e, i->src1.value);
e.jne(".x", e.T_SHORT);
e.ret();
e.L(".x");
e.outLocalLabel();
i = e.Advance(i);
return true;
});
table->AddSequence(OPCODE_SET_RETURN_ADDRESS, [](X64Emitter& e, Instr*& i) {
//UNIMPLEMENTED_SEQ();
i = e.Advance(i);