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ARM64 JIT: Optimize Group E register conversion

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Based on https://github.com/tevador/RandomX/pull/324
This commit is contained in:
SChernykh
2026-04-25 10:53:11 +02:00
parent 6bf43053f7
commit 5347458fc7
2 changed files with 10 additions and 15 deletions
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7
src/crypto/randomx/jit_compiler_a64.cpp
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@@ -1059,11 +1059,8 @@ void JitCompilerA64::h_FDIV_M(Instruction& instr, uint32_t& codePos)
constexpr uint32_t tmp_reg_fp = 28;
emitMemLoadFP<tmp_reg_fp>(src, instr, code, k);
// and tmp_reg_fp, tmp_reg_fp, and_mask_reg
emit32(0x4E201C00 | tmp_reg_fp | (tmp_reg_fp << 5) | (29 << 16), code, k);
// orr tmp_reg_fp, tmp_reg_fp, or_mask_reg
emit32(0x4EA01C00 | tmp_reg_fp | (tmp_reg_fp << 5) | (30 << 16), code, k);
// bif tmp_reg_fp, or_mask_reg, and_mask_reg
emit32(0x6EE01C00 | tmp_reg_fp | (30 << 5) | (29 << 16), code, k);
emit32(ARMV8A::FDIV | dst | (dst << 5) | (tmp_reg_fp << 16), code, k);