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tcg/ppc: Use tcg_out_mem_long to reset TCG_REG_TB 

The maximum TB code gen size is UINT16_MAX, which the current
code does not support.  Use our utility function to optimally
add an arbitrary constant.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-11-05 19:34:51 +00:00
parent e6dc7f818f
commit 2d6f38ebe5
1 changed files with 2 additions and 3 deletions
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5
tcg/ppc/tcg-target.c.inc
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@ -2392,9 +2392,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc, const TCGArg *args,
set_jmp_reset_offset(s, args[0]);
if (USE_REG_TB) {
/* For the unlinked case, need to reset TCG_REG_TB. */
c = -tcg_current_code_size(s);
assert(c == (int16_t)c);
tcg_out32(s, ADDI | TAI(TCG_REG_TB, TCG_REG_TB, c));
tcg_out_mem_long(s, ADDI, ADD, TCG_REG_TB, TCG_REG_TB,
-tcg_current_code_size(s));
}
break;
case INDEX_op_goto_ptr: