diff options
-rw-r--r-- | tcg/arm/tcg-target.c | 230 |
1 files changed, 115 insertions, 115 deletions
diff --git a/tcg/arm/tcg-target.c b/tcg/arm/tcg-target.c index 4692859ebc..e7d6bf0b78 100644 --- a/tcg/arm/tcg-target.c +++ b/tcg/arm/tcg-target.c @@ -186,7 +186,7 @@ static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str) #endif break; - /* qemu_st address & data_reg */ + /* qemu_st address & data */ case 's': ct->ct |= TCG_CT_REG; tcg_regset_set32(ct->u.regs, 0, (1 << TCG_TARGET_NB_REGS) - 1); @@ -1187,13 +1187,13 @@ static TCGReg tcg_out_tlb_read(TCGContext *s, TCGReg addrlo, TCGReg addrhi, int add_off = offsetof(CPUArchState, tlb_table[mem_index][0].addend); /* Should generate something like the following: - * shr tmp, addr_reg, #TARGET_PAGE_BITS (1) + * shr tmp, addrlo, #TARGET_PAGE_BITS (1) * add r2, env, #high * and r0, tmp, #(CPU_TLB_SIZE - 1) (2) * add r2, r2, r0, lsl #CPU_TLB_ENTRY_BITS (3) * ldr r0, [r2, #cmp] (4) - * tst addr_reg, #s_mask - * ldr r1, [r2, #add] (5) + * tst addrlo, #s_mask + * ldr r2, [r2, #add] (5) * cmpeq r0, tmp, lsl #TARGET_PAGE_BITS */ tcg_out_dat_reg(s, COND_AL, ARITH_MOV, TCG_REG_TMP, @@ -1249,18 +1249,18 @@ static TCGReg tcg_out_tlb_read(TCGContext *s, TCGReg addrlo, TCGReg addrhi, path for a load or store, so that we can later generate the correct helper code. */ static void add_qemu_ldst_label(TCGContext *s, int is_ld, TCGMemOp opc, - int data_reg, int data_reg2, int addrlo_reg, - int addrhi_reg, int mem_index, + TCGReg datalo, TCGReg datahi, TCGReg addrlo, + TCGReg addrhi, int mem_index, uint8_t *raddr, uint8_t *label_ptr) { TCGLabelQemuLdst *label = new_ldst_label(s); label->is_ld = is_ld; label->opc = opc; - label->datalo_reg = data_reg; - label->datahi_reg = data_reg2; - label->addrlo_reg = addrlo_reg; - label->addrhi_reg = addrhi_reg; + label->datalo_reg = datalo; + label->datahi_reg = datahi; + label->addrlo_reg = addrlo; + label->addrhi_reg = addrhi; label->mem_index = mem_index; label->raddr = raddr; label->label_ptr[0] = label_ptr; @@ -1268,7 +1268,7 @@ static void add_qemu_ldst_label(TCGContext *s, int is_ld, TCGMemOp opc, static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) { - TCGReg argreg, data_reg, data_reg2; + TCGReg argreg, datalo, datahi; TCGMemOp opc = lb->opc; uintptr_t func; @@ -1296,29 +1296,29 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) } tcg_out_call(s, func); - data_reg = lb->datalo_reg; - data_reg2 = lb->datahi_reg; + datalo = lb->datalo_reg; + datahi = lb->datahi_reg; switch (opc & MO_SSIZE) { case MO_SB: - tcg_out_ext8s(s, COND_AL, data_reg, TCG_REG_R0); + tcg_out_ext8s(s, COND_AL, datalo, TCG_REG_R0); break; case MO_SW: - tcg_out_ext16s(s, COND_AL, data_reg, TCG_REG_R0); + tcg_out_ext16s(s, COND_AL, datalo, TCG_REG_R0); break; default: - tcg_out_mov_reg(s, COND_AL, data_reg, TCG_REG_R0); + tcg_out_mov_reg(s, COND_AL, datalo, TCG_REG_R0); break; case MO_Q: - if (data_reg != TCG_REG_R1) { - tcg_out_mov_reg(s, COND_AL, data_reg, TCG_REG_R0); - tcg_out_mov_reg(s, COND_AL, data_reg2, TCG_REG_R1); - } else if (data_reg2 != TCG_REG_R0) { - tcg_out_mov_reg(s, COND_AL, data_reg2, TCG_REG_R1); - tcg_out_mov_reg(s, COND_AL, data_reg, TCG_REG_R0); + if (datalo != TCG_REG_R1) { + tcg_out_mov_reg(s, COND_AL, datalo, TCG_REG_R0); + tcg_out_mov_reg(s, COND_AL, datahi, TCG_REG_R1); + } else if (datahi != TCG_REG_R0) { + tcg_out_mov_reg(s, COND_AL, datahi, TCG_REG_R1); + tcg_out_mov_reg(s, COND_AL, datalo, TCG_REG_R0); } else { tcg_out_mov_reg(s, COND_AL, TCG_REG_TMP, TCG_REG_R0); - tcg_out_mov_reg(s, COND_AL, data_reg2, TCG_REG_R1); - tcg_out_mov_reg(s, COND_AL, data_reg, TCG_REG_TMP); + tcg_out_mov_reg(s, COND_AL, datahi, TCG_REG_R1); + tcg_out_mov_reg(s, COND_AL, datalo, TCG_REG_TMP); } break; } @@ -1328,7 +1328,7 @@ static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) { - TCGReg argreg, data_reg, data_reg2; + TCGReg argreg, datalo, datahi; TCGMemOp opc = lb->opc; reloc_pc24(lb->label_ptr[0], (tcg_target_long)s->code_ptr); @@ -1341,21 +1341,21 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) argreg = tcg_out_arg_reg32(s, argreg, lb->addrlo_reg); } - data_reg = lb->datalo_reg; - data_reg2 = lb->datahi_reg; + datalo = lb->datalo_reg; + datahi = lb->datahi_reg; switch (opc & MO_SIZE) { case MO_8: - argreg = tcg_out_arg_reg8(s, argreg, data_reg); + argreg = tcg_out_arg_reg8(s, argreg, datalo); break; case MO_16: - argreg = tcg_out_arg_reg16(s, argreg, data_reg); + argreg = tcg_out_arg_reg16(s, argreg, datalo); break; case MO_32: default: - argreg = tcg_out_arg_reg32(s, argreg, data_reg); + argreg = tcg_out_arg_reg32(s, argreg, datalo); break; case MO_64: - argreg = tcg_out_arg_reg64(s, argreg, data_reg, data_reg2); + argreg = tcg_out_arg_reg64(s, argreg, datalo, datahi); break; } @@ -1369,23 +1369,23 @@ static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb) static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGMemOp opc) { - TCGReg addr_reg, data_reg, data_reg2; + TCGReg addrlo, datalo, datahi; TCGMemOp bswap = opc & MO_BSWAP; TCGMemOp s_bits = opc & MO_SIZE; #ifdef CONFIG_SOFTMMU int mem_index; - TCGReg addr_reg2, addend; + TCGReg addrhi, addend; uint8_t *label_ptr; #endif - data_reg = *args++; - data_reg2 = (s_bits == MO_64 ? *args++ : 0); - addr_reg = *args++; + datalo = *args++; + datahi = (s_bits == MO_64 ? *args++ : 0); + addrlo = *args++; #ifdef CONFIG_SOFTMMU - addr_reg2 = (TARGET_LONG_BITS == 64 ? *args++ : 0); + addrhi = (TARGET_LONG_BITS == 64 ? *args++ : 0); mem_index = *args; - addend = tcg_out_tlb_read(s, addr_reg, addr_reg2, s_bits, mem_index, 1); + addend = tcg_out_tlb_read(s, addrlo, addrhi, s_bits, mem_index, 1); /* This a conditional BL only to load a pointer within this opcode into LR for the slow path. We will not be using the value for a tail call. */ @@ -1394,47 +1394,47 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGMemOp opc) switch (opc & MO_SSIZE) { case MO_UB: - tcg_out_ld8_r(s, COND_AL, data_reg, addr_reg, addend); + tcg_out_ld8_r(s, COND_AL, datalo, addrlo, addend); break; case MO_SB: - tcg_out_ld8s_r(s, COND_AL, data_reg, addr_reg, addend); + tcg_out_ld8s_r(s, COND_AL, datalo, addrlo, addend); break; case MO_UW: - tcg_out_ld16u_r(s, COND_AL, data_reg, addr_reg, addend); + tcg_out_ld16u_r(s, COND_AL, datalo, addrlo, addend); if (bswap) { - tcg_out_bswap16(s, COND_AL, data_reg, data_reg); + tcg_out_bswap16(s, COND_AL, datalo, datalo); } break; case MO_SW: if (bswap) { - tcg_out_ld16u_r(s, COND_AL, data_reg, addr_reg, addend); - tcg_out_bswap16s(s, COND_AL, data_reg, data_reg); + tcg_out_ld16u_r(s, COND_AL, datalo, addrlo, addend); + tcg_out_bswap16s(s, COND_AL, datalo, datalo); } else { - tcg_out_ld16s_r(s, COND_AL, data_reg, addr_reg, addend); + tcg_out_ld16s_r(s, COND_AL, datalo, addrlo, addend); } break; case MO_UL: default: - tcg_out_ld32_r(s, COND_AL, data_reg, addr_reg, addend); + tcg_out_ld32_r(s, COND_AL, datalo, addrlo, addend); if (bswap) { - tcg_out_bswap32(s, COND_AL, data_reg, data_reg); + tcg_out_bswap32(s, COND_AL, datalo, datalo); } break; case MO_Q: { - /* Be careful not to modify data_reg and data_reg2 + /* Be careful not to modify datalo and datahi for the slow path below. */ - TCGReg dl = (bswap ? data_reg2 : data_reg); - TCGReg dh = (bswap ? data_reg : data_reg2); + TCGReg dl = (bswap ? datahi : datalo); + TCGReg dh = (bswap ? datalo : datahi); if (use_armv6_instructions && (dl & 1) == 0 && dh == dl + 1) { - tcg_out_ldrd_r(s, COND_AL, dl, addr_reg, addend); + tcg_out_ldrd_r(s, COND_AL, dl, addrlo, addend); } else if (dl != addend) { - tcg_out_ld32_rwb(s, COND_AL, dl, addend, addr_reg); + tcg_out_ld32_rwb(s, COND_AL, dl, addend, addrlo); tcg_out_ld32_12(s, COND_AL, dh, addend, 4); } else { tcg_out_dat_reg(s, COND_AL, ARITH_ADD, TCG_REG_TMP, - addend, addr_reg, SHIFT_IMM_LSL(0)); + addend, addrlo, SHIFT_IMM_LSL(0)); tcg_out_ld32_12(s, COND_AL, dl, TCG_REG_TMP, 0); tcg_out_ld32_12(s, COND_AL, dh, TCG_REG_TMP, 4); } @@ -1446,7 +1446,7 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGMemOp opc) break; } - add_qemu_ldst_label(s, 1, opc, data_reg, data_reg2, addr_reg, addr_reg2, + add_qemu_ldst_label(s, 1, opc, datalo, datahi, addrlo, addrhi, mem_index, s->code_ptr, label_ptr); #else /* !CONFIG_SOFTMMU */ if (GUEST_BASE) { @@ -1457,57 +1457,57 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGMemOp opc) i = ctz32(offset) & ~1; rot = ((32 - i) << 7) & 0xf00; - tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_TMP, addr_reg, + tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_TMP, addrlo, ((offset >> i) & 0xff) | rot); - addr_reg = TCG_REG_TMP; + addrlo = TCG_REG_TMP; offset &= ~(0xff << i); } } switch (opc & MO_SSIZE) { case MO_UB: - tcg_out_ld8_12(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_ld8_12(s, COND_AL, datalo, addrlo, 0); break; case MO_SB: - tcg_out_ld8s_8(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_ld8s_8(s, COND_AL, datalo, addrlo, 0); break; case MO_UW: - tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_ld16u_8(s, COND_AL, datalo, addrlo, 0); if (bswap) { - tcg_out_bswap16(s, COND_AL, data_reg, data_reg); + tcg_out_bswap16(s, COND_AL, datalo, datalo); } break; case MO_SW: if (bswap) { - tcg_out_ld16u_8(s, COND_AL, data_reg, addr_reg, 0); - tcg_out_bswap16s(s, COND_AL, data_reg, data_reg); + tcg_out_ld16u_8(s, COND_AL, datalo, addrlo, 0); + tcg_out_bswap16s(s, COND_AL, datalo, datalo); } else { - tcg_out_ld16s_8(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_ld16s_8(s, COND_AL, datalo, addrlo, 0); } break; case MO_UL: default: - tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_ld32_12(s, COND_AL, datalo, addrlo, 0); if (bswap) { - tcg_out_bswap32(s, COND_AL, data_reg, data_reg); + tcg_out_bswap32(s, COND_AL, datalo, datalo); } break; case MO_Q: if (use_armv6_instructions && !bswap - && (data_reg & 1) == 0 && data_reg2 == data_reg + 1) { - tcg_out_ldrd_8(s, COND_AL, data_reg, addr_reg, 0); + && (datalo & 1) == 0 && datahi == datalo + 1) { + tcg_out_ldrd_8(s, COND_AL, datalo, addrlo, 0); } else if (use_armv6_instructions && bswap - && (data_reg2 & 1) == 0 && data_reg == data_reg2 + 1) { - tcg_out_ldrd_8(s, COND_AL, data_reg2, addr_reg, 0); - } else if (data_reg == addr_reg) { - tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, bswap ? 0 : 4); - tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, bswap ? 4 : 0); + && (datahi & 1) == 0 && datalo == datahi + 1) { + tcg_out_ldrd_8(s, COND_AL, datahi, addrlo, 0); + } else if (datalo == addrlo) { + tcg_out_ld32_12(s, COND_AL, datahi, addrlo, bswap ? 0 : 4); + tcg_out_ld32_12(s, COND_AL, datalo, addrlo, bswap ? 4 : 0); } else { - tcg_out_ld32_12(s, COND_AL, data_reg, addr_reg, bswap ? 4 : 0); - tcg_out_ld32_12(s, COND_AL, data_reg2, addr_reg, bswap ? 0 : 4); + tcg_out_ld32_12(s, COND_AL, datalo, addrlo, bswap ? 4 : 0); + tcg_out_ld32_12(s, COND_AL, datahi, addrlo, bswap ? 0 : 4); } if (bswap) { - tcg_out_bswap32(s, COND_AL, data_reg, data_reg); - tcg_out_bswap32(s, COND_AL, data_reg2, data_reg2); + tcg_out_bswap32(s, COND_AL, datalo, datalo); + tcg_out_bswap32(s, COND_AL, datahi, datahi); } break; } @@ -1516,12 +1516,12 @@ static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGMemOp opc) static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, TCGMemOp opc) { - TCGReg addr_reg, data_reg, data_reg2; + TCGReg addrlo, datalo, datahi; TCGMemOp bswap = opc & MO_BSWAP; TCGMemOp s_bits = opc & MO_SIZE; #ifdef CONFIG_SOFTMMU int mem_index; - TCGReg addr_reg2, addend; + TCGReg addrhi, addend; uint8_t *label_ptr; #endif #ifdef TARGET_WORDS_BIGENDIAN @@ -1530,48 +1530,48 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, TCGMemOp opc) bswap = 0; #endif - data_reg = *args++; - data_reg2 = (s_bits == MO_64 ? *args++ : 0); - addr_reg = *args++; + datalo = *args++; + datahi = (s_bits == MO_64 ? *args++ : 0); + addrlo = *args++; #ifdef CONFIG_SOFTMMU - addr_reg2 = (TARGET_LONG_BITS == 64 ? *args++ : 0); + addrhi = (TARGET_LONG_BITS == 64 ? *args++ : 0); mem_index = *args; - addend = tcg_out_tlb_read(s, addr_reg, addr_reg2, s_bits, mem_index, 0); + addend = tcg_out_tlb_read(s, addrlo, addrhi, s_bits, mem_index, 0); switch (s_bits) { case MO_8: - tcg_out_st8_r(s, COND_EQ, data_reg, addr_reg, addend); + tcg_out_st8_r(s, COND_EQ, datalo, addrlo, addend); break; case MO_16: if (bswap) { - tcg_out_bswap16st(s, COND_EQ, TCG_REG_R0, data_reg); - tcg_out_st16_r(s, COND_EQ, TCG_REG_R0, addr_reg, addend); + tcg_out_bswap16st(s, COND_EQ, TCG_REG_R0, datalo); + tcg_out_st16_r(s, COND_EQ, TCG_REG_R0, addrlo, addend); } else { - tcg_out_st16_r(s, COND_EQ, data_reg, addr_reg, addend); + tcg_out_st16_r(s, COND_EQ, datalo, addrlo, addend); } break; case MO_32: default: if (bswap) { - tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg); - tcg_out_st32_r(s, COND_EQ, TCG_REG_R0, addr_reg, addend); + tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, datalo); + tcg_out_st32_r(s, COND_EQ, TCG_REG_R0, addrlo, addend); } else { - tcg_out_st32_r(s, COND_EQ, data_reg, addr_reg, addend); + tcg_out_st32_r(s, COND_EQ, datalo, addrlo, addend); } break; case MO_64: if (bswap) { - tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg2); - tcg_out_st32_rwb(s, COND_EQ, TCG_REG_R0, addend, addr_reg); - tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, data_reg); + tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, datahi); + tcg_out_st32_rwb(s, COND_EQ, TCG_REG_R0, addend, addrlo); + tcg_out_bswap32(s, COND_EQ, TCG_REG_R0, datalo); tcg_out_st32_12(s, COND_EQ, TCG_REG_R0, addend, 4); } else if (use_armv6_instructions - && (data_reg & 1) == 0 && data_reg2 == data_reg + 1) { - tcg_out_strd_r(s, COND_EQ, data_reg, addr_reg, addend); + && (datalo & 1) == 0 && datahi == datalo + 1) { + tcg_out_strd_r(s, COND_EQ, datalo, addrlo, addend); } else { - tcg_out_st32_rwb(s, COND_EQ, data_reg, addend, addr_reg); - tcg_out_st32_12(s, COND_EQ, data_reg2, addend, 4); + tcg_out_st32_rwb(s, COND_EQ, datalo, addend, addrlo); + tcg_out_st32_12(s, COND_EQ, datahi, addend, 4); } break; } @@ -1580,7 +1580,7 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, TCGMemOp opc) label_ptr = s->code_ptr; tcg_out_bl_noaddr(s, COND_NE); - add_qemu_ldst_label(s, 0, opc, data_reg, data_reg2, addr_reg, addr_reg2, + add_qemu_ldst_label(s, 0, opc, datalo, datahi, addrlo, addrhi, mem_index, s->code_ptr, label_ptr); #else /* !CONFIG_SOFTMMU */ if (GUEST_BASE) { @@ -1592,45 +1592,45 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args, TCGMemOp opc) i = ctz32(offset) & ~1; rot = ((32 - i) << 7) & 0xf00; - tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R1, addr_reg, + tcg_out_dat_imm(s, COND_AL, ARITH_ADD, TCG_REG_R1, addrlo, ((offset >> i) & 0xff) | rot); - addr_reg = TCG_REG_R1; + addrlo = TCG_REG_R1; offset &= ~(0xff << i); } } switch (s_bits) { case MO_8: - tcg_out_st8_12(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_st8_12(s, COND_AL, datalo, addrlo, 0); break; case MO_16: if (bswap) { - tcg_out_bswap16st(s, COND_AL, TCG_REG_R0, data_reg); - tcg_out_st16_8(s, COND_AL, TCG_REG_R0, addr_reg, 0); + tcg_out_bswap16st(s, COND_AL, TCG_REG_R0, datalo); + tcg_out_st16_8(s, COND_AL, TCG_REG_R0, addrlo, 0); } else { - tcg_out_st16_8(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_st16_8(s, COND_AL, datalo, addrlo, 0); } break; case MO_32: default: if (bswap) { - tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg); - tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 0); + tcg_out_bswap32(s, COND_AL, TCG_REG_R0, datalo); + tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addrlo, 0); } else { - tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0); + tcg_out_st32_12(s, COND_AL, datalo, addrlo, 0); } break; case MO_64: if (bswap) { - tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg2); - tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 0); - tcg_out_bswap32(s, COND_AL, TCG_REG_R0, data_reg); - tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addr_reg, 4); + tcg_out_bswap32(s, COND_AL, TCG_REG_R0, datahi); + tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addrlo, 0); + tcg_out_bswap32(s, COND_AL, TCG_REG_R0, datalo); + tcg_out_st32_12(s, COND_AL, TCG_REG_R0, addrlo, 4); } else if (use_armv6_instructions - && (data_reg & 1) == 0 && data_reg2 == data_reg + 1) { - tcg_out_strd_8(s, COND_AL, data_reg, addr_reg, 0); + && (datalo & 1) == 0 && datahi == datalo + 1) { + tcg_out_strd_8(s, COND_AL, datalo, addrlo, 0); } else { - tcg_out_st32_12(s, COND_AL, data_reg, addr_reg, 0); - tcg_out_st32_12(s, COND_AL, data_reg2, addr_reg, 4); + tcg_out_st32_12(s, COND_AL, datalo, addrlo, 0); + tcg_out_st32_12(s, COND_AL, datahi, addrlo, 4); } break; } |