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emit_x64_crc32: Use same constants

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This commit is contained in:
MerryMage 2020-06-06 20:46:09 +01:00
parent 66a356e6cb
commit feddf69cb4
1 changed files with 2 additions and 2 deletions
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4
src/backend/x64/emit_x64_crc32.cpp
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@ -42,7 +42,7 @@ static void EmitCRC32ISO(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, co
const Xbyak::Xmm xmm_const = ctx.reg_alloc.ScratchXmm(); const Xbyak::Xmm xmm_const = ctx.reg_alloc.ScratchXmm();
const Xbyak::Xmm xmm_tmp = ctx.reg_alloc.ScratchXmm(); const Xbyak::Xmm xmm_tmp = ctx.reg_alloc.ScratchXmm();
code.movdqa(xmm_const, code.MConst(xword, 0x00000001'F7011641, 0x00000001'DB710641)); code.movdqa(xmm_const, code.MConst(xword, 0xb4e5b025'f7011641, 0x00000001'DB710641));
code.movzx(value.cvt32(), value.changeBit(data_size)); code.movzx(value.cvt32(), value.changeBit(data_size));
code.xor_(value.cvt32(), crc); code.xor_(value.cvt32(), crc);
@ -72,7 +72,7 @@ static void EmitCRC32ISO(BlockOfCode& code, EmitContext& ctx, IR::Inst* inst, co
const Xbyak::Xmm xmm_value = ctx.reg_alloc.ScratchXmm(); const Xbyak::Xmm xmm_value = ctx.reg_alloc.ScratchXmm();
const Xbyak::Xmm xmm_const = ctx.reg_alloc.ScratchXmm(); const Xbyak::Xmm xmm_const = ctx.reg_alloc.ScratchXmm();
code.movdqa(xmm_const, code.MConst(xword, 0x00000001'F7011641, 0x00000001'DB710641)); code.movdqa(xmm_const, code.MConst(xword, 0xb4e5b025'f7011641, 0x00000001'DB710641));
code.xor_(crc, value); code.xor_(crc, value);
code.shl(crc.cvt64(), 32); code.shl(crc.cvt64(), 32);