From c0813cf2a50a71e372b6782141e777335ac801d9 Mon Sep 17 00:00:00 2001 From: Merry Date: Fri, 20 Jan 2023 02:03:52 +0000 Subject: [PATCH] emit_x64_vector: Fix 64-bit TBL (zext table input) --- src/dynarmic/backend/x64/emit_x64_vector.cpp | 24 ++++++++++++++------ 1 file changed, 17 insertions(+), 7 deletions(-) diff --git a/src/dynarmic/backend/x64/emit_x64_vector.cpp b/src/dynarmic/backend/x64/emit_x64_vector.cpp index d6b54b00..852ac742 100644 --- a/src/dynarmic/backend/x64/emit_x64_vector.cpp +++ b/src/dynarmic/backend/x64/emit_x64_vector.cpp @@ -4622,16 +4622,26 @@ void EmitX64::EmitVectorTableLookup64(EmitContext& ctx, IR::Inst* inst) { 0x6060606060606060, }; - if (code.HasHostFeature(HostFeature::SSSE3) && is_defaults_zero && table_size <= 2) { + if (code.HasHostFeature(HostFeature::SSSE3) && is_defaults_zero && table_size == 1) { + const Xbyak::Xmm indicies = ctx.reg_alloc.UseScratchXmm(args[2]); + const Xbyak::Xmm xmm_table0 = ctx.reg_alloc.UseXmm(table[0]); + const Xbyak::Xmm result = ctx.reg_alloc.ScratchXmm(); + + code.xorps(result, result); + code.movsd(result, xmm_table0); + code.paddusb(indicies, code.MConst(xword, 0x7070707070707070, 0xFFFFFFFFFFFFFFFF)); + code.pshufb(result, indicies); + + ctx.reg_alloc.DefineValue(inst, result); + return; + } + + if (code.HasHostFeature(HostFeature::SSSE3) && is_defaults_zero && table_size == 2) { const Xbyak::Xmm indicies = ctx.reg_alloc.UseScratchXmm(args[2]); const Xbyak::Xmm xmm_table0 = ctx.reg_alloc.UseScratchXmm(table[0]); + const Xbyak::Xmm xmm_table0_upper = ctx.reg_alloc.UseXmm(table[1]); - if (table_size == 2) { - const Xbyak::Xmm xmm_table0_upper = ctx.reg_alloc.UseXmm(table[1]); - code.punpcklqdq(xmm_table0, xmm_table0_upper); - ctx.reg_alloc.Release(xmm_table0_upper); - } - + code.punpcklqdq(xmm_table0, xmm_table0_upper); code.paddusb(indicies, code.MConst(xword, 0x7070707070707070, 0xFFFFFFFFFFFFFFFF)); code.pshufb(xmm_table0, indicies);