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File _service:tar_scm:0027-x86-reduce-AVX512-FP16-set-of-insns-decoded-through-.patch of Package binutils
From 2235ecb8afebeb56baf29eb98de34cfa1b95f697 Mon Sep 17 00:00:00 2001 From: Jan Beulich <jbeulich@suse.com> Date: Fri, 14 Jan 2022 10:54:21 +0100 Subject: [PATCH] x86: reduce AVX512-FP16 set of insns decoded through vex_w_table[] Like already indicated during review of the original submission, there's really only very few insns where going through this table is easier / cheaper than using suitable macros. Utilize %XH more and introduce similar %XS and %XD (which subsequently can be used for further table size reduction). While there also switch to using oappend() in 'XH' macro processing. diff --git a/opcodes/i386-dis-evex-prefix.h b/opcodes/i386-dis-evex-prefix.h index 9c8156ac11e..64a43ce02a1 100644 --- a/opcodes/i386-dis-evex-prefix.h +++ b/opcodes/i386-dis-evex-prefix.h @@ -375,17 +375,17 @@ { "vfmsub213s%XW", { XMScalar, VexScalar, EXdq, EXxEVexR }, 0 }, { "v4fnmaddss", { XMScalar, VexScalar, Mxmm }, 0 }, }, - /* PREFIX_EVEX_0F3A08_W_0 */ + /* PREFIX_EVEX_0F3A08 */ { - { "vrndscaleph", { XM, EXxh, EXxEVexS, Ib }, 0 }, + { "vrndscalep%XH", { XM, EXxh, EXxEVexS, Ib }, 0 }, { Bad_Opcode }, - { "vrndscaleps", { XM, EXx, EXxEVexS, Ib }, 0 }, + { "vrndscalep%XS", { XM, EXx, EXxEVexS, Ib }, 0 }, }, - /* PREFIX_EVEX_0F3A0A_W_0 */ + /* PREFIX_EVEX_0F3A0A */ { - { "vrndscalesh", { XMScalar, VexScalar, EXw, EXxEVexS, Ib }, 0 }, + { "vrndscales%XH", { XMScalar, VexScalar, EXw, EXxEVexS, Ib }, 0 }, { Bad_Opcode }, - { "vrndscaless", { XMScalar, VexScalar, EXd, EXxEVexS, Ib }, 0 }, + { "vrndscales%XS", { XMScalar, VexScalar, EXd, EXxEVexS, Ib }, 0 }, }, /* PREFIX_EVEX_0F3A26 */ { @@ -482,27 +482,18 @@ { "vmulp%XH", { XM, Vex, EXxh, EXxEVexR }, 0 }, { "vmuls%XH", { XMM, VexScalar, EXw, EXxEVexR }, 0 }, }, - /* PREFIX_EVEX_MAP5_5A_W_0 */ + /* PREFIX_EVEX_MAP5_5A */ { - { "vcvtph2pd", { XM, EXxmmqdh, EXxEVexS }, 0 }, - { "vcvtsh2sd", { XMM, VexScalar, EXw, EXxEVexS }, 0 }, + { "vcvtp%XH2pd", { XM, EXxmmqdh, EXxEVexS }, 0 }, + { "vcvts%XH2sd", { XMM, VexScalar, EXw, EXxEVexS }, 0 }, + { "vcvtp%XD2ph%XZ", { XMM, EXx, EXxEVexR }, 0 }, + { "vcvts%XD2sh", { XMM, VexScalar, EXq, EXxEVexR }, 0 }, }, - /* PREFIX_EVEX_MAP5_5A_W_1 */ + /* PREFIX_EVEX_MAP5_5B */ { - { Bad_Opcode }, - { Bad_Opcode }, - { "vcvtpd2ph%XZ", { XMM, EXx, EXxEVexR }, 0 }, - { "vcvtsd2sh", { XMM, VexScalar, EXq, EXxEVexR }, 0 }, - }, - /* PREFIX_EVEX_MAP5_5B_W_0 */ - { - { "vcvtdq2ph%XY", { XMxmmq, EXx, EXxEVexR }, 0 }, - { "vcvttph2dq", { XM, EXxmmqh, EXxEVexS }, 0 }, - { "vcvtph2dq", { XM, EXxmmqh, EXxEVexR }, 0 }, - }, - /* PREFIX_EVEX_MAP5_5B_W_1 */ - { - { "vcvtqq2ph%XZ", { XMM, EXx, EXxEVexR }, 0 }, + { VEX_W_TABLE (EVEX_W_MAP5_5B_P_0) }, + { "vcvttp%XH2dq", { XM, EXxmmqh, EXxEVexS }, 0 }, + { "vcvtp%XH2dq", { XM, EXxmmqh, EXxEVexR }, 0 }, }, /* PREFIX_EVEX_MAP5_5C */ { @@ -526,47 +517,47 @@ }, /* PREFIX_EVEX_MAP5_78 */ { - { VEX_W_TABLE (EVEX_W_MAP5_78_P_0) }, + { "vcvttp%XH2udq", { XM, EXxmmqh, EXxEVexS }, 0 }, { "vcvttsh2usi", { Gdq, EXw, EXxEVexS }, 0 }, - { VEX_W_TABLE (EVEX_W_MAP5_78_P_2) }, + { "vcvttp%XH2uqq", { XM, EXxmmqdh, EXxEVexS }, 0 }, }, /* PREFIX_EVEX_MAP5_79 */ { - { VEX_W_TABLE (EVEX_W_MAP5_79_P_0) }, + { "vcvtp%XH2udq", { XM, EXxmmqh, EXxEVexR }, 0 }, { "vcvtsh2usi", { Gdq, EXw, EXxEVexR }, 0 }, - { VEX_W_TABLE (EVEX_W_MAP5_79_P_2) }, + { "vcvtp%XH2uqq", { XM, EXxmmqdh, EXxEVexR }, 0 }, }, /* PREFIX_EVEX_MAP5_7A */ { { Bad_Opcode }, { Bad_Opcode }, - { VEX_W_TABLE (EVEX_W_MAP5_7A_P_2) }, + { "vcvttp%XH2qq", { XM, EXxmmqdh, EXxEVexS }, 0 }, { VEX_W_TABLE (EVEX_W_MAP5_7A_P_3) }, }, /* PREFIX_EVEX_MAP5_7B */ { { Bad_Opcode }, { "vcvtusi2sh{%LQ|}", { XMScalar, VexScalar, EXxEVexR, Edq }, 0 }, - { VEX_W_TABLE (EVEX_W_MAP5_7B_P_2) }, + { "vcvtp%XH2qq", { XM, EXxmmqdh, EXxEVexR }, 0 }, }, /* PREFIX_EVEX_MAP5_7C */ { - { VEX_W_TABLE (EVEX_W_MAP5_7C_P_0) }, + { "vcvttp%XH2uw", { XM, EXxh, EXxEVexS }, 0 }, { Bad_Opcode }, - { VEX_W_TABLE (EVEX_W_MAP5_7C_P_2) }, + { "vcvttp%XH2w", { XM, EXxh, EXxEVexS }, 0 }, }, - /* PREFIX_EVEX_MAP5_7D_W_0 */ + /* PREFIX_EVEX_MAP5_7D */ { - { "vcvtph2uw", { XM, EXxh, EXxEVexR }, 0 }, - { "vcvtw2ph", { XM, EXxh, EXxEVexR }, 0 }, - { "vcvtph2w", { XM, EXxh, EXxEVexR }, 0 }, - { "vcvtuw2ph", { XM, EXxh, EXxEVexR }, 0 }, + { "vcvtp%XH2uw", { XM, EXxh, EXxEVexR }, 0 }, + { "vcvtw2p%XH", { XM, EXxh, EXxEVexR }, 0 }, + { "vcvtp%XH2w", { XM, EXxh, EXxEVexR }, 0 }, + { "vcvtuw2p%XH", { XM, EXxh, EXxEVexR }, 0 }, }, /* PREFIX_EVEX_MAP6_13 */ { - { VEX_W_TABLE (EVEX_W_MAP6_13_P_0) }, + { "vcvts%XH2ss", { XMM, VexScalar, EXw, EXxEVexS }, 0 }, { Bad_Opcode }, - { VEX_W_TABLE (EVEX_W_MAP6_13_P_2) }, + { "vcvtp%XH2psx", { XM, EXxmmqh, EXxEVexS }, 0 }, }, /* PREFIX_EVEX_MAP6_56 */ { diff --git a/opcodes/i386-dis-evex-w.h b/opcodes/i386-dis-evex-w.h index 62c3d3b9afb..fc0a0791d1d 100644 --- a/opcodes/i386-dis-evex-w.h +++ b/opcodes/i386-dis-evex-w.h @@ -550,19 +550,11 @@ { Bad_Opcode }, { "vpermilpd", { XM, EXx, Ib }, PREFIX_DATA }, }, - /* EVEX_W_0F3A08 */ - { - { PREFIX_TABLE (PREFIX_EVEX_0F3A08_W_0) }, - }, /* EVEX_W_0F3A09 */ { { Bad_Opcode }, { "vrndscalepd", { XM, EXx, EXxEVexS, Ib }, PREFIX_DATA }, }, - /* EVEX_W_0F3A0A */ - { - { PREFIX_TABLE (PREFIX_EVEX_0F3A0A_W_0) }, - }, /* EVEX_W_0F3A0B */ { { Bad_Opcode }, @@ -636,62 +628,13 @@ { Bad_Opcode }, { "vpshrdw", { XM, Vex, EXx, Ib }, 0 }, }, - /* EVEX_W_MAP5_5A */ - { - { PREFIX_TABLE (PREFIX_EVEX_MAP5_5A_W_0) }, - { PREFIX_TABLE (PREFIX_EVEX_MAP5_5A_W_1) }, - }, - /* EVEX_W_MAP5_5B */ - { - { PREFIX_TABLE (PREFIX_EVEX_MAP5_5B_W_0) }, - { PREFIX_TABLE (PREFIX_EVEX_MAP5_5B_W_1) }, - }, - /* EVEX_W_MAP5_78_P_0 */ - { - { "vcvttph2udq", { XM, EXxmmqh, EXxEVexS }, 0 }, - }, - /* EVEX_W_MAP5_78_P_2 */ - { - { "vcvttph2uqq", { XM, EXxmmqdh, EXxEVexS }, 0 }, - }, - /* EVEX_W_MAP5_79_P_0 */ - { - { "vcvtph2udq", { XM, EXxmmqh, EXxEVexR }, 0 }, - }, - /* EVEX_W_MAP5_79_P_2 */ + /* EVEX_W_MAP5_5B_P_0 */ { - { "vcvtph2uqq", { XM, EXxmmqdh, EXxEVexR }, 0 }, - }, - /* EVEX_W_MAP5_7A_P_2 */ - { - { "vcvttph2qq", { XM, EXxmmqdh, EXxEVexS }, 0 }, + { "vcvtdq2ph%XY", { XMxmmq, EXx, EXxEVexR }, 0 }, + { "vcvtqq2ph%XZ", { XMM, EXx, EXxEVexR }, 0 }, }, /* EVEX_W_MAP5_7A_P_3 */ { { "vcvtudq2ph%XY", { XMxmmq, EXx, EXxEVexR }, 0 }, { "vcvtuqq2ph%XZ", { XMM, EXx, EXxEVexR }, 0 }, }, - /* EVEX_W_MAP5_7B_P_2 */ - { - { "vcvtph2qq", { XM, EXxmmqdh, EXxEVexR }, 0 }, - }, - /* EVEX_W_MAP5_7C_P_0 */ - { - { "vcvttph2uw", { XM, EXxh, EXxEVexS }, 0 }, - }, - /* EVEX_W_MAP5_7C_P_2 */ - { - { "vcvttph2w", { XM, EXxh, EXxEVexS }, 0 }, - }, - /* EVEX_W_MAP5_7D */ - { - { PREFIX_TABLE (PREFIX_EVEX_MAP5_7D_W_0) }, - }, - /* EVEX_W_MAP6_13_P_0 */ - { - { "vcvtsh2ss", { XMM, VexScalar, EXw, EXxEVexS }, 0 }, - }, - /* EVEX_W_MAP6_13_P_2 */ - { - { "vcvtph2psx", { XM, EXxmmqh, EXxEVexS }, 0 }, - }, diff --git a/opcodes/i386-dis-evex.h b/opcodes/i386-dis-evex.h index d79c78c1793..11cc257bb2e 100644 --- a/opcodes/i386-dis-evex.h +++ b/opcodes/i386-dis-evex.h @@ -593,9 +593,9 @@ static const struct dis386 evex_table[][256] = { { Bad_Opcode }, { Bad_Opcode }, /* 08 */ - { VEX_W_TABLE (EVEX_W_0F3A08) }, + { PREFIX_TABLE (PREFIX_EVEX_0F3A08) }, { VEX_W_TABLE (EVEX_W_0F3A09) }, - { VEX_W_TABLE (EVEX_W_0F3A0A) }, + { PREFIX_TABLE (PREFIX_EVEX_0F3A0A) }, { VEX_W_TABLE (EVEX_W_0F3A0B) }, { Bad_Opcode }, { Bad_Opcode }, @@ -976,8 +976,8 @@ static const struct dis386 evex_table[][256] = { /* 58 */ { PREFIX_TABLE (PREFIX_EVEX_MAP5_58) }, { PREFIX_TABLE (PREFIX_EVEX_MAP5_59) }, - { VEX_W_TABLE (EVEX_W_MAP5_5A) }, - { VEX_W_TABLE (EVEX_W_MAP5_5B) }, + { PREFIX_TABLE (PREFIX_EVEX_MAP5_5A) }, + { PREFIX_TABLE (PREFIX_EVEX_MAP5_5B) }, { PREFIX_TABLE (PREFIX_EVEX_MAP5_5C) }, { PREFIX_TABLE (PREFIX_EVEX_MAP5_5D) }, { PREFIX_TABLE (PREFIX_EVEX_MAP5_5E) }, @@ -1015,7 +1015,7 @@ static const struct dis386 evex_table[][256] = { { PREFIX_TABLE (PREFIX_EVEX_MAP5_7A) }, { PREFIX_TABLE (PREFIX_EVEX_MAP5_7B) }, { PREFIX_TABLE (PREFIX_EVEX_MAP5_7C) }, - { VEX_W_TABLE (EVEX_W_MAP5_7D) }, + { PREFIX_TABLE (PREFIX_EVEX_MAP5_7D) }, { "vmovw", { Edw, XMScalar }, PREFIX_DATA }, { Bad_Opcode }, /* 80 */ diff --git a/opcodes/i386-dis.c b/opcodes/i386-dis.c index 4e0e1559339..afc3743e4e8 100644 --- a/opcodes/i386-dis.c +++ b/opcodes/i386-dis.c @@ -1212,8 +1212,8 @@ enum PREFIX_EVEX_0F38AA, PREFIX_EVEX_0F38AB, - PREFIX_EVEX_0F3A08_W_0, - PREFIX_EVEX_0F3A0A_W_0, + PREFIX_EVEX_0F3A08, + PREFIX_EVEX_0F3A0A, PREFIX_EVEX_0F3A26, PREFIX_EVEX_0F3A27, PREFIX_EVEX_0F3A56, @@ -1233,10 +1233,8 @@ enum PREFIX_EVEX_MAP5_51, PREFIX_EVEX_MAP5_58, PREFIX_EVEX_MAP5_59, - PREFIX_EVEX_MAP5_5A_W_0, - PREFIX_EVEX_MAP5_5A_W_1, - PREFIX_EVEX_MAP5_5B_W_0, - PREFIX_EVEX_MAP5_5B_W_1, + PREFIX_EVEX_MAP5_5A, + PREFIX_EVEX_MAP5_5B, PREFIX_EVEX_MAP5_5C, PREFIX_EVEX_MAP5_5D, PREFIX_EVEX_MAP5_5E, @@ -1246,7 +1244,7 @@ enum PREFIX_EVEX_MAP5_7A, PREFIX_EVEX_MAP5_7B, PREFIX_EVEX_MAP5_7C, - PREFIX_EVEX_MAP5_7D_W_0, + PREFIX_EVEX_MAP5_7D, PREFIX_EVEX_MAP6_13, PREFIX_EVEX_MAP6_56, @@ -1746,9 +1744,7 @@ enum EVEX_W_0F3883, EVEX_W_0F3A05, - EVEX_W_0F3A08, EVEX_W_0F3A09, - EVEX_W_0F3A0A, EVEX_W_0F3A0B, EVEX_W_0F3A18_L_n, EVEX_W_0F3A19_L_n, @@ -1765,21 +1761,8 @@ enum EVEX_W_0F3A70, EVEX_W_0F3A72, - EVEX_W_MAP5_5A, - EVEX_W_MAP5_5B, - EVEX_W_MAP5_78_P_0, - EVEX_W_MAP5_78_P_2, - EVEX_W_MAP5_79_P_0, - EVEX_W_MAP5_79_P_2, - EVEX_W_MAP5_7A_P_2, + EVEX_W_MAP5_5B_P_0, EVEX_W_MAP5_7A_P_3, - EVEX_W_MAP5_7B_P_2, - EVEX_W_MAP5_7C_P_0, - EVEX_W_MAP5_7C_P_2, - EVEX_W_MAP5_7D, - - EVEX_W_MAP6_13_P_0, - EVEX_W_MAP6_13_P_2, }; typedef void (*op_rtn) (instr_info *ins, int bytemode, int sizeflag); @@ -1840,7 +1823,9 @@ struct dis386 { "XZ" => print 'x', 'y', or 'z' if suffix_always is true or no register operands and no broadcast. "XW" => print 's', 'd' depending on the VEX.W bit (for FMA) + "XD" => print 'd' if EVEX.W=1, EVEX.W=0 is not a valid encoding "XH" => print 'h' if EVEX.W=0, EVEX.W=1 is not a valid encoding (for FP16) + "XS" => print 's' if EVEX.W=0, EVEX.W=1 is not a valid encoding "XV" => print "{vex3}" pseudo prefix "LQ" => print 'l' ('d' in Intel mode) or 'q' for memory operand, cond being false, or no operand at all in 64bit mode, or if suffix_always @@ -10496,6 +10481,23 @@ putop (instr_info *ins, const char *in_template, int sizeflag) } break; case 'D': + if (l == 1) + { + switch (last[0]) + { + case 'X': + if (ins->vex.w) + *ins->obufp++ = 'd'; + else + oappend (ins, "{bad}"); + break; + default: + abort (); + } + break; + } + if (l) + abort (); if (ins->intel_syntax || !(sizeflag & SUFFIX_ALWAYS)) break; USED_REX (REX_W); @@ -10582,13 +10584,7 @@ putop (instr_info *ins, const char *in_template, int sizeflag) if (ins->vex.w == 0) *ins->obufp++ = 'h'; else - { - *ins->obufp++ = '{'; - *ins->obufp++ = 'b'; - *ins->obufp++ = 'a'; - *ins->obufp++ = 'd'; - *ins->obufp++ = '}'; - } + oappend (ins, "{bad}"); } else abort (); @@ -10752,9 +10748,13 @@ putop (instr_info *ins, const char *in_template, int sizeflag) ins->used_prefixes |= (ins->prefixes & PREFIX_DATA); } } + break; } - else if (l == 1 && last[0] == 'L') + if (l != 1) + abort (); + switch (last[0]) { + case 'L': if (ins->address_mode == mode_64bit && !(ins->prefixes & PREFIX_ADDR)) { @@ -10764,9 +10764,15 @@ putop (instr_info *ins, const char *in_template, int sizeflag) } goto case_S; + case 'X': + if (!ins->vex.w) + *ins->obufp++ = 's'; + else + oappend (ins, "{bad}"); + break; + default: + abort (); } - else - abort (); break; case 'V': if (l == 0) -- 2.33.0
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