From e3867bad0daca67df7e6312234bab6e20d4a7ae6 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Sun, 23 Apr 2023 20:10:00 +0100 Subject: [PATCH] tcg/ppc: Introduce HostAddress MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Collect the parts of the host address into a struct. Reorg tcg_out_qemu_{ld,st} to use it. Reviewed-by: Philippe Mathieu-Daudé Signed-off-by: Richard Henderson --- tcg/ppc/tcg-target.c.inc | 90 +++++++++++++++++++++------------------- 1 file changed, 47 insertions(+), 43 deletions(-) diff --git a/tcg/ppc/tcg-target.c.inc b/tcg/ppc/tcg-target.c.inc index d1aa2a9f53..cd473deb36 100644 --- a/tcg/ppc/tcg-target.c.inc +++ b/tcg/ppc/tcg-target.c.inc @@ -2287,67 +2287,71 @@ static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l) { return tcg_out_fail_alignment(s, l); } - #endif /* SOFTMMU */ +typedef struct { + TCGReg base; + TCGReg index; +} HostAddress; + static void tcg_out_qemu_ld(TCGContext *s, TCGReg datalo, TCGReg datahi, TCGReg addrlo, TCGReg addrhi, MemOpIdx oi, TCGType data_type) { MemOp opc = get_memop(oi); MemOp s_bits = opc & MO_SIZE; - TCGReg rbase; + HostAddress h; #ifdef CONFIG_SOFTMMU tcg_insn_unit *label_ptr; - addrlo = tcg_out_tlb_read(s, opc, addrlo, addrhi, get_mmuidx(oi), true); + h.index = tcg_out_tlb_read(s, opc, addrlo, addrhi, get_mmuidx(oi), true); + h.base = TCG_REG_R3; /* Load a pointer into the current opcode w/conditional branch-link. */ label_ptr = s->code_ptr; tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK); - - rbase = TCG_REG_R3; #else /* !CONFIG_SOFTMMU */ unsigned a_bits = get_alignment_bits(opc); if (a_bits) { tcg_out_test_alignment(s, true, addrlo, addrhi, a_bits); } - rbase = guest_base ? TCG_GUEST_BASE_REG : 0; + h.base = guest_base ? TCG_GUEST_BASE_REG : 0; + h.index = addrlo; if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) { tcg_out_ext32u(s, TCG_REG_TMP1, addrlo); - addrlo = TCG_REG_TMP1; + h.index = TCG_REG_TMP1; } #endif if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { if (opc & MO_BSWAP) { - tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); - tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo)); - tcg_out32(s, LWBRX | TAB(datahi, rbase, TCG_REG_R0)); - } else if (rbase != 0) { - tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); - tcg_out32(s, LWZX | TAB(datahi, rbase, addrlo)); - tcg_out32(s, LWZX | TAB(datalo, rbase, TCG_REG_R0)); - } else if (addrlo == datahi) { - tcg_out32(s, LWZ | TAI(datalo, addrlo, 4)); - tcg_out32(s, LWZ | TAI(datahi, addrlo, 0)); + tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); + tcg_out32(s, LWBRX | TAB(datalo, h.base, h.index)); + tcg_out32(s, LWBRX | TAB(datahi, h.base, TCG_REG_R0)); + } else if (h.base != 0) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); + tcg_out32(s, LWZX | TAB(datahi, h.base, h.index)); + tcg_out32(s, LWZX | TAB(datalo, h.base, TCG_REG_R0)); + } else if (h.index == datahi) { + tcg_out32(s, LWZ | TAI(datalo, h.index, 4)); + tcg_out32(s, LWZ | TAI(datahi, h.index, 0)); } else { - tcg_out32(s, LWZ | TAI(datahi, addrlo, 0)); - tcg_out32(s, LWZ | TAI(datalo, addrlo, 4)); + tcg_out32(s, LWZ | TAI(datahi, h.index, 0)); + tcg_out32(s, LWZ | TAI(datalo, h.index, 4)); } } else { uint32_t insn = qemu_ldx_opc[opc & (MO_BSWAP | MO_SSIZE)]; if (!have_isa_2_06 && insn == LDBRX) { - tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); - tcg_out32(s, LWBRX | TAB(datalo, rbase, addrlo)); - tcg_out32(s, LWBRX | TAB(TCG_REG_R0, rbase, TCG_REG_R0)); + tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); + tcg_out32(s, LWBRX | TAB(datalo, h.base, h.index)); + tcg_out32(s, LWBRX | TAB(TCG_REG_R0, h.base, TCG_REG_R0)); tcg_out_rld(s, RLDIMI, datalo, TCG_REG_R0, 32, 0); } else if (insn) { - tcg_out32(s, insn | TAB(datalo, rbase, addrlo)); + tcg_out32(s, insn | TAB(datalo, h.base, h.index)); } else { insn = qemu_ldx_opc[opc & (MO_SIZE | MO_BSWAP)]; - tcg_out32(s, insn | TAB(datalo, rbase, addrlo)); + tcg_out32(s, insn | TAB(datalo, h.base, h.index)); tcg_out_movext(s, TCG_TYPE_REG, datalo, TCG_TYPE_REG, opc & MO_SSIZE, datalo); } @@ -2365,52 +2369,52 @@ static void tcg_out_qemu_st(TCGContext *s, TCGReg datalo, TCGReg datahi, { MemOp opc = get_memop(oi); MemOp s_bits = opc & MO_SIZE; - TCGReg rbase; + HostAddress h; #ifdef CONFIG_SOFTMMU tcg_insn_unit *label_ptr; - addrlo = tcg_out_tlb_read(s, opc, addrlo, addrhi, get_mmuidx(oi), false); + h.index = tcg_out_tlb_read(s, opc, addrlo, addrhi, get_mmuidx(oi), false); + h.base = TCG_REG_R3; /* Load a pointer into the current opcode w/conditional branch-link. */ label_ptr = s->code_ptr; tcg_out32(s, BC | BI(7, CR_EQ) | BO_COND_FALSE | LK); - - rbase = TCG_REG_R3; #else /* !CONFIG_SOFTMMU */ unsigned a_bits = get_alignment_bits(opc); if (a_bits) { tcg_out_test_alignment(s, false, addrlo, addrhi, a_bits); } - rbase = guest_base ? TCG_GUEST_BASE_REG : 0; + h.base = guest_base ? TCG_GUEST_BASE_REG : 0; + h.index = addrlo; if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) { tcg_out_ext32u(s, TCG_REG_TMP1, addrlo); - addrlo = TCG_REG_TMP1; + h.index = TCG_REG_TMP1; } #endif if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) { if (opc & MO_BSWAP) { - tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); - tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo)); - tcg_out32(s, STWBRX | SAB(datahi, rbase, TCG_REG_R0)); - } else if (rbase != 0) { - tcg_out32(s, ADDI | TAI(TCG_REG_R0, addrlo, 4)); - tcg_out32(s, STWX | SAB(datahi, rbase, addrlo)); - tcg_out32(s, STWX | SAB(datalo, rbase, TCG_REG_R0)); + tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); + tcg_out32(s, STWBRX | SAB(datalo, h.base, h.index)); + tcg_out32(s, STWBRX | SAB(datahi, h.base, TCG_REG_R0)); + } else if (h.base != 0) { + tcg_out32(s, ADDI | TAI(TCG_REG_R0, h.index, 4)); + tcg_out32(s, STWX | SAB(datahi, h.base, h.index)); + tcg_out32(s, STWX | SAB(datalo, h.base, TCG_REG_R0)); } else { - tcg_out32(s, STW | TAI(datahi, addrlo, 0)); - tcg_out32(s, STW | TAI(datalo, addrlo, 4)); + tcg_out32(s, STW | TAI(datahi, h.index, 0)); + tcg_out32(s, STW | TAI(datalo, h.index, 4)); } } else { uint32_t insn = qemu_stx_opc[opc & (MO_BSWAP | MO_SIZE)]; if (!have_isa_2_06 && insn == STDBRX) { - tcg_out32(s, STWBRX | SAB(datalo, rbase, addrlo)); - tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, addrlo, 4)); + tcg_out32(s, STWBRX | SAB(datalo, h.base, h.index)); + tcg_out32(s, ADDI | TAI(TCG_REG_TMP1, h.index, 4)); tcg_out_shri64(s, TCG_REG_R0, datalo, 32); - tcg_out32(s, STWBRX | SAB(TCG_REG_R0, rbase, TCG_REG_TMP1)); + tcg_out32(s, STWBRX | SAB(TCG_REG_R0, h.base, TCG_REG_TMP1)); } else { - tcg_out32(s, insn | SAB(datalo, rbase, addrlo)); + tcg_out32(s, insn | SAB(datalo, h.base, h.index)); } }