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| author | Sven Schnelle <svens@stackframe.org> | 2019-09-13 12:17:13 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-09-14 15:39:24 -0400 |
| commit | 4845f01518fcc0b77f8b000651f9a5cc27d9f730 (patch) | |
| tree | 97d06d9eb7f6da9212a17067a30979e9e55222db /target/hppa | |
| parent | 85182c96de61f0b600bbe834d5a23e713162e892 (diff) | |
| download | qemu-4845f01518fcc0b77f8b000651f9a5cc27d9f730.zip qemu-4845f01518fcc0b77f8b000651f9a5cc27d9f730.tar.gz qemu-4845f01518fcc0b77f8b000651f9a5cc27d9f730.tar.bz2 | |
target/hppa: prevent trashing of temporary in trans_mtctl()
nullify_over() calls brcond which destroys all temporaries.
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Message-Id: <20190913101714.29019-2-svens@stackframe.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'target/hppa')
| -rw-r--r-- | target/hppa/translate.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/target/hppa/translate.c b/target/hppa/translate.c index 53e17d8..b12525d 100644 --- a/target/hppa/translate.c +++ b/target/hppa/translate.c @@ -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); |