Commit 4845f015 authored by Sven Schnelle's avatar Sven Schnelle Committed by Richard Henderson
Browse files

target/hppa: prevent trashing of temporary in trans_mtctl() 



nullify_over() calls brcond which destroys all temporaries.

Signed-off-by: default avatarSven Schnelle <svens@stackframe.org>
Message-Id: <20190913101714.29019-2-svens@stackframe.org>
Signed-off-by: default avatarRichard Henderson <richard.henderson@linaro.org>
parent 85182c96

target/hppa/translate.c

+4 −1
Original line number Diff line number Diff line
@@ -2214,10 +2214,11 @@ static bool trans_mtsp(DisasContext *ctx, arg_mtsp *a) 
static bool trans_mtctl(DisasContext *ctx, arg_mtctl *a)

{

    unsigned ctl = a->t;

    TCGv_reg reg = load_gpr(ctx, a->r);

    TCGv_reg reg;

    TCGv_reg tmp;



    if (ctl == CR_SAR) {

        reg = load_gpr(ctx, a->r);

        tmp = tcg_temp_new();

        tcg_gen_andi_reg(tmp, reg, TARGET_REGISTER_BITS - 1);

        save_or_nullify(ctx, cpu_sar, tmp);
@@ -2232,6 +2233,8 @@ static bool trans_mtctl(DisasContext *ctx, arg_mtctl *a) 


#ifndef CONFIG_USER_ONLY

    nullify_over(ctx);

    reg = load_gpr(ctx, a->r);



    switch (ctl) {

    case CR_IT:

        gen_helper_write_interval_timer(cpu_env, reg);