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target/hppa: Free some temps in do_sub 

Two temps allocated but not freed.  Do enough subtractions
within a single TB and one can run out of temps entirely.

Fixes: b2167459ae ("target-hppa: Implement basic arithmetic")
Buglink: https://bugs.launchpad.net/qemu/+bug/1880287
Tested-by: Sven Schnelle <svens@stackframe.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200720174039.517902-1-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2020-07-20 10:35:00 -07:00
parent 570ef3093b
commit 79826f99fe
1 changed files with 2 additions and 0 deletions
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2
target/hppa/translate.c
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@ -1294,6 +1294,8 @@ static void do_sub(DisasContext *ctx, unsigned rt, TCGv_reg in1,
save_or_nullify(ctx, cpu_psw_cb_msb, cb_msb);
save_gpr(ctx, rt, dest);
tcg_temp_free(dest);
tcg_temp_free(cb);
tcg_temp_free(cb_msb);
/* Install the new nullification. */
cond_free(&ctx->null_cond);