From 2b8046f3618756dee9c8169bc389b890c43f7190 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Wed, 11 Oct 2023 11:51:58 +0200 Subject: [PATCH] target/i386: move remaining conditional operations to new decoder Move long-displacement Jcc, SETcc and CMOVcc to the new decoder. While filling in the tables makes the code seem longer, the new emitters are all just one line of code. Reviewed-by: Richard Henderson Signed-off-by: Paolo Bonzini --- target/i386/tcg/decode-new.c.inc | 56 ++++++++++++++++++++++++++++++++ target/i386/tcg/decode-new.h | 1 + target/i386/tcg/emit.c.inc | 10 ++++++ target/i386/tcg/translate.c | 2 +- 4 files changed, 68 insertions(+), 1 deletion(-) diff --git a/target/i386/tcg/decode-new.c.inc b/target/i386/tcg/decode-new.c.inc index b145af7a56..c70a783691 100644 --- a/target/i386/tcg/decode-new.c.inc +++ b/target/i386/tcg/decode-new.c.inc @@ -999,6 +999,15 @@ static const X86OpEntry opcodes_0F[256] = { /* Incorrectly listed as Mq,Vq in the manual */ [0x17] = X86_OP_ENTRY3(VMOVHPx_st, M,q, None,None, V,dq, vex5 p_00_66), + [0x40] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x41] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x42] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x43] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x44] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x45] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x46] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x47] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x50] = X86_OP_ENTRY3(MOVMSK, G,y, None,None, U,x, vex7 p_00_66), [0x51] = X86_OP_GROUP3(sse_unary, V,x, H,x, W,x, vex2_rep3 p_00_66_f3_f2), /* sqrtps */ [0x52] = X86_OP_GROUP3(sse_unary, V,x, H,x, W,x, vex4_rep5 p_00_f3), /* rsqrtps */ @@ -1026,6 +1035,24 @@ static const X86OpEntry opcodes_0F[256] = { [0x76] = X86_OP_ENTRY3(PCMPEQD, V,x, H,x, W,x, vex4 mmx avx2_256 p_00_66), [0x77] = X86_OP_GROUP0(0F77), + [0x80] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x81] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x82] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x83] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x84] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x85] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x86] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x87] = X86_OP_ENTRYr(Jcc, J,z_f64), + + [0x90] = X86_OP_ENTRYw(SETcc, E,b), + [0x91] = X86_OP_ENTRYw(SETcc, E,b), + [0x92] = X86_OP_ENTRYw(SETcc, E,b), + [0x93] = X86_OP_ENTRYw(SETcc, E,b), + [0x94] = X86_OP_ENTRYw(SETcc, E,b), + [0x95] = X86_OP_ENTRYw(SETcc, E,b), + [0x96] = X86_OP_ENTRYw(SETcc, E,b), + [0x97] = X86_OP_ENTRYw(SETcc, E,b), + [0x28] = X86_OP_ENTRY3(MOVDQ, V,x, None,None, W,x, vex1 p_00_66), /* MOVAPS */ [0x29] = X86_OP_ENTRY3(MOVDQ, W,x, None,None, V,x, vex1 p_00_66), /* MOVAPS */ [0x2A] = X86_OP_GROUP0(0F2A), @@ -1038,6 +1065,15 @@ static const X86OpEntry opcodes_0F[256] = { [0x38] = X86_OP_GROUP0(0F38), [0x3a] = X86_OP_GROUP0(0F3A), + [0x48] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x49] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x4a] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x4b] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x4c] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x4d] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x4e] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x4f] = X86_OP_ENTRY2(CMOVcc, G,v, E,v, cpuid(CMOV)), + [0x58] = X86_OP_ENTRY3(VADD, V,x, H,x, W,x, vex2_rep3 p_00_66_f3_f2), [0x59] = X86_OP_ENTRY3(VMUL, V,x, H,x, W,x, vex2_rep3 p_00_66_f3_f2), [0x5a] = X86_OP_GROUP0(0F5A), @@ -1063,6 +1099,24 @@ static const X86OpEntry opcodes_0F[256] = { [0x7e] = X86_OP_GROUP0(0F7E), [0x7f] = X86_OP_GROUP0(0F7F), + [0x88] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x89] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x8a] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x8b] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x8c] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x8d] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x8e] = X86_OP_ENTRYr(Jcc, J,z_f64), + [0x8f] = X86_OP_ENTRYr(Jcc, J,z_f64), + + [0x98] = X86_OP_ENTRYw(SETcc, E,b), + [0x99] = X86_OP_ENTRYw(SETcc, E,b), + [0x9a] = X86_OP_ENTRYw(SETcc, E,b), + [0x9b] = X86_OP_ENTRYw(SETcc, E,b), + [0x9c] = X86_OP_ENTRYw(SETcc, E,b), + [0x9d] = X86_OP_ENTRYw(SETcc, E,b), + [0x9e] = X86_OP_ENTRYw(SETcc, E,b), + [0x9f] = X86_OP_ENTRYw(SETcc, E,b), + [0xae] = X86_OP_GROUP0(group15), [0xc2] = X86_OP_ENTRY4(VCMP, V,x, H,x, W,x, vex2_rep3 p_00_66_f3_f2), @@ -1929,6 +1983,8 @@ static bool has_cpuid_feature(DisasContext *s, X86CPUIDFeature cpuid) switch (cpuid) { case X86_FEAT_None: return true; + case X86_FEAT_CMOV: + return (s->cpuid_features & CPUID_CMOV); case X86_FEAT_F16C: return (s->cpuid_ext_features & CPUID_EXT_F16C); case X86_FEAT_FMA: diff --git a/target/i386/tcg/decode-new.h b/target/i386/tcg/decode-new.h index e86a5c2cb5..2ea06b4478 100644 --- a/target/i386/tcg/decode-new.h +++ b/target/i386/tcg/decode-new.h @@ -107,6 +107,7 @@ typedef enum X86CPUIDFeature { X86_FEAT_AVX2, X86_FEAT_BMI1, X86_FEAT_BMI2, + X86_FEAT_CMOV, X86_FEAT_CMPCCXADD, X86_FEAT_F16C, X86_FEAT_FMA, diff --git a/target/i386/tcg/emit.c.inc b/target/i386/tcg/emit.c.inc index 2c848fab62..a9e32516af 100644 --- a/target/i386/tcg/emit.c.inc +++ b/target/i386/tcg/emit.c.inc @@ -1386,6 +1386,11 @@ static void gen_CMC(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode) tcg_gen_xori_tl(cpu_cc_src, cpu_cc_src, CC_C); } +static void gen_CMOVcc(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode) +{ + gen_cmovcc1(s, decode->b & 0xf, s->T0, s->T1); +} + static void gen_CMPccXADD(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode) { TCGLabel *label_top = gen_new_label(); @@ -3305,6 +3310,11 @@ static void gen_SCAS(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode) } } +static void gen_SETcc(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode) +{ + gen_setcc1(s, decode->b & 0xf, s->T0); +} + static void gen_SHA1NEXTE(DisasContext *s, CPUX86State *env, X86DecodedInsn *decode) { gen_helper_sha1nexte(OP_PTR0, OP_PTR1, OP_PTR2); diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c index 3060fdbee9..b1c1aecf71 100644 --- a/target/i386/tcg/translate.c +++ b/target/i386/tcg/translate.c @@ -3207,7 +3207,7 @@ static bool disas_insn(DisasContext *s, CPUState *cpu) #ifndef CONFIG_USER_ONLY use_new &= b <= limit; #endif - if (use_new && 0) { + if (use_new && (b >= 0x138 && b <= 0x19f)) { disas_insn_new(s, cpu, b); return true; }