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tcg/ppc: Convert tcg_out_qemu_{ld,st}_slow_path 

Use tcg_out_ld_helper_args, tcg_out_ld_helper_ret,
and tcg_out_st_helper_args.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2023-04-10 11:09:42 -07:00
parent f07aaf4856
commit ec38941912
1 changed files with 26 additions and 62 deletions
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88
tcg/ppc/tcg-target.c.inc
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@ -2003,44 +2003,38 @@ static void * const qemu_st_helpers[(MO_SIZE | MO_BSWAP) + 1] = {
[MO_BEUQ] = helper_be_stq_mmu,
};
static TCGReg ldst_ra_gen(TCGContext *s, const TCGLabelQemuLdst *l, int arg)
{
if (arg < 0) {
arg = TCG_REG_TMP1;
}
tcg_out32(s, MFSPR | RT(arg) | LR);
return arg;
}
/*
* For the purposes of ppc32 sorting 4 input registers into 4 argument
* registers, there is an outside chance we would require 3 temps.
* Because of constraints, no inputs are in r3, and env will not be
* placed into r3 until after the sorting is done, and is thus free.
*/
static const TCGLdstHelperParam ldst_helper_param = {
.ra_gen = ldst_ra_gen,
.ntmp = 3,
.tmp = { TCG_REG_TMP1, TCG_REG_R0, TCG_REG_R3 }
};
static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
{
MemOpIdx oi = lb->oi;
MemOp opc = get_memop(oi);
TCGReg hi, lo, arg = TCG_REG_R3;
MemOp opc = get_memop(lb->oi);
if (!reloc_pc14(lb->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
return false;
}
tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0);
lo = lb->addrlo_reg;
hi = lb->addrhi_reg;
if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
arg |= (TCG_TARGET_CALL_ARG_I64 == TCG_CALL_ARG_EVEN);
tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
} else {
/* If the address needed to be zero-extended, we'll have already
placed it in R4. The only remaining case is 64-bit guest. */
tcg_out_mov(s, TCG_TYPE_TL, arg++, lo);
}
tcg_out_movi(s, TCG_TYPE_I32, arg++, oi);
tcg_out32(s, MFSPR | RT(arg) | LR);
tcg_out_ld_helper_args(s, lb, &ldst_helper_param);
tcg_out_call_int(s, LK, qemu_ld_helpers[opc & (MO_BSWAP | MO_SIZE)]);
lo = lb->datalo_reg;
hi = lb->datahi_reg;
if (TCG_TARGET_REG_BITS == 32 && (opc & MO_SIZE) == MO_64) {
tcg_out_mov(s, TCG_TYPE_I32, lo, TCG_REG_R4);
tcg_out_mov(s, TCG_TYPE_I32, hi, TCG_REG_R3);
} else {
tcg_out_movext(s, lb->type, lo,
TCG_TYPE_REG, opc & MO_SSIZE, TCG_REG_R3);
}
tcg_out_ld_helper_ret(s, lb, false, &ldst_helper_param);
tcg_out_b(s, 0, lb->raddr);
return true;
@ -2048,43 +2042,13 @@ static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *lb)
{
MemOpIdx oi = lb->oi;
MemOp opc = get_memop(oi);
MemOp s_bits = opc & MO_SIZE;
TCGReg hi, lo, arg = TCG_REG_R3;
MemOp opc = get_memop(lb->oi);
if (!reloc_pc14(lb->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
return false;
}
tcg_out_mov(s, TCG_TYPE_PTR, arg++, TCG_AREG0);
lo = lb->addrlo_reg;
hi = lb->addrhi_reg;
if (TCG_TARGET_REG_BITS < TARGET_LONG_BITS) {
arg |= (TCG_TARGET_CALL_ARG_I64 == TCG_CALL_ARG_EVEN);
tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
} else {
/* If the address needed to be zero-extended, we'll have already
placed it in R4. The only remaining case is 64-bit guest. */
tcg_out_mov(s, TCG_TYPE_TL, arg++, lo);
}
lo = lb->datalo_reg;
hi = lb->datahi_reg;
if (TCG_TARGET_REG_BITS == 32 && s_bits == MO_64) {
arg |= (TCG_TARGET_CALL_ARG_I64 == TCG_CALL_ARG_EVEN);
tcg_out_mov(s, TCG_TYPE_I32, arg++, hi);
tcg_out_mov(s, TCG_TYPE_I32, arg++, lo);
} else {
tcg_out_movext(s, s_bits == MO_64 ? TCG_TYPE_I64 : TCG_TYPE_I32,
arg++, lb->type, s_bits, lo);
}
tcg_out_movi(s, TCG_TYPE_I32, arg++, oi);
tcg_out32(s, MFSPR | RT(arg) | LR);
tcg_out_st_helper_args(s, lb, &ldst_helper_param);
tcg_out_call_int(s, LK, qemu_st_helpers[opc & (MO_BSWAP | MO_SIZE)]);
tcg_out_b(s, 0, lb->raddr);