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author | Richard Henderson <rth@twiddle.net> | 2013-09-03 13:54:21 -0700 |
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committer | Richard Henderson <rth@twiddle.net> | 2013-10-12 16:19:19 -0700 |
commit | 37c5d0d5d1ad4e603dc50411c85bad6f726357a2 (patch) | |
tree | b2aff4905b299c0315d87b2b29a8d620ad35e15a /tcg/i386/tcg-target.c | |
parent | d257e0d7aeb72f4280666590f81ca5f0a38697f8 (diff) | |
download | hqemu-37c5d0d5d1ad4e603dc50411c85bad6f726357a2.zip hqemu-37c5d0d5d1ad4e603dc50411c85bad6f726357a2.tar.gz |
tcg-i386: Use TCGMemOp within qemu_ldst routines
Step one in the transition, with constants passed down from tcg_out_op.
Signed-off-by: Richard Henderson <rth@twiddle.net>
Diffstat (limited to 'tcg/i386/tcg-target.c')
-rw-r--r-- | tcg/i386/tcg-target.c | 123 |
1 files changed, 59 insertions, 64 deletions
diff --git a/tcg/i386/tcg-target.c b/tcg/i386/tcg-target.c index b865b4b..1b86009 100644 --- a/tcg/i386/tcg-target.c +++ b/tcg/i386/tcg-target.c @@ -1077,7 +1077,7 @@ static void add_qemu_ldst_label(TCGContext *s, First argument register is clobbered. */ static inline void tcg_out_tlb_load(TCGContext *s, int addrlo_idx, - int mem_index, int s_bits, + int mem_index, TCGMemOp s_bits, const TCGArg *args, uint8_t **label_ptr, int which) { @@ -1164,28 +1164,26 @@ static inline void setup_guest_base_seg(void) static inline void setup_guest_base_seg(void) { } #endif /* SOFTMMU */ -static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo, int datahi, - int base, intptr_t ofs, int seg, int sizeop) +static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg datalo, TCGReg datahi, + TCGReg base, intptr_t ofs, int seg, + TCGMemOp memop) { -#ifdef TARGET_WORDS_BIGENDIAN - const int bswap = 1; -#else - const int bswap = 0; -#endif - switch (sizeop) { - case 0: + const TCGMemOp bswap = memop & MO_BSWAP; + + switch (memop & MO_SSIZE) { + case MO_UB: tcg_out_modrm_offset(s, OPC_MOVZBL + seg, datalo, base, ofs); break; - case 0 | 4: + case MO_SB: tcg_out_modrm_offset(s, OPC_MOVSBL + P_REXW + seg, datalo, base, ofs); break; - case 1: + case MO_UW: tcg_out_modrm_offset(s, OPC_MOVZWL + seg, datalo, base, ofs); if (bswap) { tcg_out_rolw_8(s, datalo); } break; - case 1 | 4: + case MO_SW: if (bswap) { tcg_out_modrm_offset(s, OPC_MOVZWL + seg, datalo, base, ofs); tcg_out_rolw_8(s, datalo); @@ -1195,14 +1193,14 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo, int datahi, datalo, base, ofs); } break; - case 2: + case MO_UL: tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, datalo, base, ofs); if (bswap) { tcg_out_bswap32(s, datalo); } break; #if TCG_TARGET_REG_BITS == 64 - case 2 | 4: + case MO_SL: if (bswap) { tcg_out_modrm_offset(s, OPC_MOVL_GvEv + seg, datalo, base, ofs); tcg_out_bswap32(s, datalo); @@ -1212,7 +1210,7 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo, int datahi, } break; #endif - case 3: + case MO_Q: if (TCG_TARGET_REG_BITS == 64) { tcg_out_modrm_offset(s, OPC_MOVL_GvEv + P_REXW + seg, datalo, base, ofs); @@ -1250,26 +1248,26 @@ static void tcg_out_qemu_ld_direct(TCGContext *s, int datalo, int datahi, /* XXX: qemu_ld and qemu_st could be modified to clobber only EDX and EAX. It will be useful once fixed registers globals are less common. */ -static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, - int opc) +static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGMemOp opc) { int data_reg, data_reg2 = 0; int addrlo_idx; #if defined(CONFIG_SOFTMMU) - int mem_index, s_bits; + int mem_index; + TCGMemOp s_bits; uint8_t *label_ptr[2]; #endif data_reg = args[0]; addrlo_idx = 1; - if (TCG_TARGET_REG_BITS == 32 && opc == 3) { + if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) { data_reg2 = args[1]; addrlo_idx = 2; } #if defined(CONFIG_SOFTMMU) mem_index = args[addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS)]; - s_bits = opc & 3; + s_bits = opc & MO_SIZE; tcg_out_tlb_load(s, addrlo_idx, mem_index, s_bits, args, label_ptr, offsetof(CPUTLBEntry, addr_read)); @@ -1314,27 +1312,24 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, #endif } -static void tcg_out_qemu_st_direct(TCGContext *s, int datalo, int datahi, - int base, intptr_t ofs, int seg, - int sizeop) +static void tcg_out_qemu_st_direct(TCGContext *s, TCGReg datalo, TCGReg datahi, + TCGReg base, intptr_t ofs, int seg, + TCGMemOp memop) { -#ifdef TARGET_WORDS_BIGENDIAN - const int bswap = 1; -#else - const int bswap = 0; -#endif + const TCGMemOp bswap = memop & MO_BSWAP; + /* ??? Ideally we wouldn't need a scratch register. For user-only, we could perform the bswap twice to restore the original value instead of moving to the scratch. But as it is, the L constraint means that TCG_REG_L0 is definitely free here. */ - const int scratch = TCG_REG_L0; + const TCGReg scratch = TCG_REG_L0; - switch (sizeop) { - case 0: + switch (memop & MO_SIZE) { + case MO_8: tcg_out_modrm_offset(s, OPC_MOVB_EvGv + P_REXB_R + seg, datalo, base, ofs); break; - case 1: + case MO_16: if (bswap) { tcg_out_mov(s, TCG_TYPE_I32, scratch, datalo); tcg_out_rolw_8(s, scratch); @@ -1343,7 +1338,7 @@ static void tcg_out_qemu_st_direct(TCGContext *s, int datalo, int datahi, tcg_out_modrm_offset(s, OPC_MOVL_EvGv + P_DATA16 + seg, datalo, base, ofs); break; - case 2: + case MO_32: if (bswap) { tcg_out_mov(s, TCG_TYPE_I32, scratch, datalo); tcg_out_bswap32(s, scratch); @@ -1351,7 +1346,7 @@ static void tcg_out_qemu_st_direct(TCGContext *s, int datalo, int datahi, } tcg_out_modrm_offset(s, OPC_MOVL_EvGv + seg, datalo, base, ofs); break; - case 3: + case MO_64: if (TCG_TARGET_REG_BITS == 64) { if (bswap) { tcg_out_mov(s, TCG_TYPE_I64, scratch, datalo); @@ -1377,13 +1372,13 @@ static void tcg_out_qemu_st_direct(TCGContext *s, int datalo, int datahi, } } -static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, - int opc) +static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, TCGMemOp opc) { int data_reg, data_reg2 = 0; int addrlo_idx; #if defined(CONFIG_SOFTMMU) - int mem_index, s_bits; + int mem_index; + TCGMemOp s_bits; uint8_t *label_ptr[2]; #endif @@ -1396,7 +1391,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, #if defined(CONFIG_SOFTMMU) mem_index = args[addrlo_idx + 1 + (TARGET_LONG_BITS > TCG_TARGET_REG_BITS)]; - s_bits = opc; + s_bits = opc & MO_SIZE; tcg_out_tlb_load(s, addrlo_idx, mem_index, s_bits, args, label_ptr, offsetof(CPUTLBEntry, addr_write)); @@ -1478,8 +1473,8 @@ static void add_qemu_ldst_label(TCGContext *s, */ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l) { - int opc = l->opc; - int s_bits = opc & 3; + TCGMemOp opc = l->opc; + TCGMemOp s_bits = opc & MO_SIZE; TCGReg data_reg; uint8_t **label_ptr = &l->label_ptr[0]; @@ -1519,25 +1514,25 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l) tcg_out_calli(s, (uintptr_t)qemu_ld_helpers[s_bits]); data_reg = l->datalo_reg; - switch(opc) { - case 0 | 4: + switch (opc & MO_SSIZE) { + case MO_SB: tcg_out_ext8s(s, data_reg, TCG_REG_EAX, P_REXW); break; - case 1 | 4: + case MO_SW: tcg_out_ext16s(s, data_reg, TCG_REG_EAX, P_REXW); break; #if TCG_TARGET_REG_BITS == 64 - case 2 | 4: + case MO_SL: tcg_out_ext32s(s, data_reg, TCG_REG_EAX); break; #endif - case 0: - case 1: + case MO_UB: + case MO_UW: /* Note that the helpers have zero-extended to tcg_target_long. */ - case 2: + case MO_UL: tcg_out_mov(s, TCG_TYPE_I32, data_reg, TCG_REG_EAX); break; - case 3: + case MO_Q: if (TCG_TARGET_REG_BITS == 64) { tcg_out_mov(s, TCG_TYPE_I64, data_reg, TCG_REG_RAX); } else if (data_reg == TCG_REG_EDX) { @@ -1562,8 +1557,8 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l) */ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l) { - int opc = l->opc; - int s_bits = opc & 3; + TCGMemOp opc = l->opc; + TCGMemOp s_bits = opc & MO_SIZE; uint8_t **label_ptr = &l->label_ptr[0]; TCGReg retaddr; @@ -1590,7 +1585,7 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l) tcg_out_st(s, TCG_TYPE_I32, l->datalo_reg, TCG_REG_ESP, ofs); ofs += 4; - if (opc == 3) { + if (s_bits == MO_64) { tcg_out_st(s, TCG_TYPE_I32, l->datahi_reg, TCG_REG_ESP, ofs); ofs += 4; } @@ -1604,7 +1599,7 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l) } else { tcg_out_mov(s, TCG_TYPE_PTR, tcg_target_call_iarg_regs[0], TCG_AREG0); /* The second argument is already loaded with addrlo. */ - tcg_out_mov(s, (opc == 3 ? TCG_TYPE_I64 : TCG_TYPE_I32), + tcg_out_mov(s, (s_bits == MO_64 ? TCG_TYPE_I64 : TCG_TYPE_I32), tcg_target_call_iarg_regs[2], l->datalo_reg); tcg_out_movi(s, TCG_TYPE_I32, tcg_target_call_iarg_regs[3], l->mem_index); @@ -1851,38 +1846,38 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, break; case INDEX_op_qemu_ld8u: - tcg_out_qemu_ld(s, args, 0); + tcg_out_qemu_ld(s, args, MO_UB); break; case INDEX_op_qemu_ld8s: - tcg_out_qemu_ld(s, args, 0 | 4); + tcg_out_qemu_ld(s, args, MO_SB); break; case INDEX_op_qemu_ld16u: - tcg_out_qemu_ld(s, args, 1); + tcg_out_qemu_ld(s, args, MO_TEUW); break; case INDEX_op_qemu_ld16s: - tcg_out_qemu_ld(s, args, 1 | 4); + tcg_out_qemu_ld(s, args, MO_TESW); break; #if TCG_TARGET_REG_BITS == 64 case INDEX_op_qemu_ld32u: #endif case INDEX_op_qemu_ld32: - tcg_out_qemu_ld(s, args, 2); + tcg_out_qemu_ld(s, args, MO_TEUL); break; case INDEX_op_qemu_ld64: - tcg_out_qemu_ld(s, args, 3); + tcg_out_qemu_ld(s, args, MO_TEQ); break; case INDEX_op_qemu_st8: - tcg_out_qemu_st(s, args, 0); + tcg_out_qemu_st(s, args, MO_UB); break; case INDEX_op_qemu_st16: - tcg_out_qemu_st(s, args, 1); + tcg_out_qemu_st(s, args, MO_TEUW); break; case INDEX_op_qemu_st32: - tcg_out_qemu_st(s, args, 2); + tcg_out_qemu_st(s, args, MO_TEUL); break; case INDEX_op_qemu_st64: - tcg_out_qemu_st(s, args, 3); + tcg_out_qemu_st(s, args, MO_TEQ); break; OP_32_64(mulu2): @@ -1943,7 +1938,7 @@ static inline void tcg_out_op(TCGContext *s, TCGOpcode opc, } break; case INDEX_op_qemu_ld32s: - tcg_out_qemu_ld(s, args, 2 | 4); + tcg_out_qemu_ld(s, args, MO_TESL); break; case INDEX_op_brcond_i64: |