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tcg/ppc: Remove unused goto_tb code for indirect jump 

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2022-11-26 15:05:01 -08:00
parent 3bb8500ef8
commit cea583d13c
1 changed files with 13 additions and 19 deletions
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32
tcg/ppc/tcg-target.c.inc
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@ -2630,27 +2630,21 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
switch (opc) {
case INDEX_op_goto_tb:
if (s->tb_jmp_insn_offset) {
/* Direct jump. */
if (TCG_TARGET_REG_BITS == 64) {
/* Ensure the next insns are 8 or 16-byte aligned. */
while ((uintptr_t)s->code_ptr & (have_isa_2_07 ? 15 : 7)) {
tcg_out32(s, NOP);
}
s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s);
tcg_out32(s, ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, 0));
tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, 0));
} else {
s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s);
tcg_out32(s, B);
s->tb_jmp_reset_offset[args[0]] = tcg_current_code_size(s);
break;
qemu_build_assert(TCG_TARGET_HAS_direct_jump);
/* Direct jump. */
if (TCG_TARGET_REG_BITS == 64) {
/* Ensure the next insns are 8 or 16-byte aligned. */
while ((uintptr_t)s->code_ptr & (have_isa_2_07 ? 15 : 7)) {
tcg_out32(s, NOP);
}
s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s);
tcg_out32(s, ADDIS | TAI(TCG_REG_TB, TCG_REG_TB, 0));
tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, 0));
} else {
/* Indirect jump. */
tcg_debug_assert(s->tb_jmp_insn_offset == NULL);
tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TB, 0,
(intptr_t)(s->tb_jmp_insn_offset + args[0]));
s->tb_jmp_insn_offset[args[0]] = tcg_current_code_size(s);
tcg_out32(s, B);
s->tb_jmp_reset_offset[args[0]] = tcg_current_code_size(s);
break;
}
tcg_out32(s, MTSPR | RS(TCG_REG_TB) | CTR);
tcg_out32(s, BCCTR | BO_ALWAYS);