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Simplified CALL and RET

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This commit is contained in:
tevador
2019-01-11 10:18:24 +01:00
parent 557241cd95
commit e487092f07
3 changed files with 176 additions and 382 deletions
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21
src/AssemblyGeneratorX86.cpp
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@@ -506,28 +506,19 @@ namespace RandomX {
void AssemblyGeneratorX86::h_CALL(Instruction& instr, int i) {
genar(instr, i);
asmCode << "\tcmp " << regR32[instr.regb % RegistersCount] << ", " << instr.imm32 << std::endl;
asmCode << "\t" << jumpCondition(instr);
asmCode << " short taken_call_" << i << std::endl;
gencr(instr);
asmCode << "\tjmp rx_i_" << wrapInstr(i + 1) << std::endl;
asmCode << "taken_call_" << i << ":" << std::endl;
if (trace) {
asmCode << "\tmov qword ptr [" << regScratchpadAddr << " + " << regIc << " * 8 + 262136], rax" << std::endl;
}
asmCode << "\tpush rax" << std::endl;
asmCode << "\tcmp " << regR32[instr.regb % RegistersCount] << ", " << instr.imm32 << std::endl;
asmCode << "\t" << jumpCondition(instr, true);
asmCode << " short rx_i_" << wrapInstr(i + 1) << std::endl;
asmCode << "\tcall rx_i_" << wrapInstr(i + (instr.imm8 & 127) + 2) << std::endl;
}
void AssemblyGeneratorX86::h_RET(Instruction& instr, int i) {
genar(instr, i);
gencr(instr);
asmCode << "\tcmp rsp, " << regStackBeginAddr << std::endl;
asmCode << "\tje short not_taken_ret_" << i << std::endl;
asmCode << "\txor rax, qword ptr [rsp + 8]" << std::endl;
gencr(instr);
asmCode << "\tret 8" << std::endl;
asmCode << "not_taken_ret_" << i << ":" << std::endl;
gencr(instr);
asmCode << "\tje short rx_i_" << wrapInstr(i + 1) << std::endl;
asmCode << "\tret" << std::endl;
}
#include "instructionWeights.hpp"