Commit 2d2826b9 authored by Aurelien Jarno's avatar Aurelien Jarno
Browse files

target-mips: don't use local temps for store conditional 



Store conditional operations only need local temps in user mode. Fix
the code to use temp local only in user mode, this spares two memory
stores in system mode.

At the same time remove a wrong a wrong copied & pasted comment,
store operations don't have a register destination.

Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
parent fc40787a

target-mips/translate.c

+6 −5
Original line number Diff line number Diff line
@@ -1814,13 +1814,14 @@ static void gen_st_cond (DisasContext *ctx, uint32_t opc, int rt, 
    const char *opn = "st_cond";

    TCGv t0, t1;



#ifdef CONFIG_USER_ONLY

    t0 = tcg_temp_local_new();



    gen_base_offset_addr(ctx, t0, base, offset);

    /* Don't do NOP if destination is zero: we must perform the actual

       memory access. */



    t1 = tcg_temp_local_new();

#else

    t0 = tcg_temp_new();

    t1 = tcg_temp_new();

#endif

    gen_base_offset_addr(ctx, t0, base, offset);

    gen_load_gpr(t1, rt);

    switch (opc) {

#if defined(TARGET_MIPS64)