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[PATCH for-5.1] target/hppa: Free some temps in do_sub

From: Richard Henderson
Subject: [PATCH for-5.1] target/hppa: Free some temps in do_sub
Date: Mon, 20 Jul 2020 10:40:39 -0700

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

Cc: qemu-stable@nongnu.org
Buglink: https://bugs.launchpad.net/qemu/+bug/1880287
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
 target/hppa/translate.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 52d7bea1ea..4bd22d4820 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -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(cb);
+    tcg_temp_free(cb_msb);
     /* Install the new nullification.  */

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