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[PULL,2/3] target/hppa: Free some temps in do_sub

Message ID 20200725160548.750749-3-richard.henderson@linaro.org
State New
Headers show
Series misc tcg-related patches | expand

Commit Message

Richard Henderson July 25, 2020, 4:05 p.m. UTC 
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>
---
 target/hppa/translate.c | 2 ++
 1 file changed, 2 insertions(+)

-- 
2.25.1
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Patch

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(dest);
+    tcg_temp_free(cb);
+    tcg_temp_free(cb_msb);
 
     /* Install the new nullification.  */
     cond_free(&ctx->null_cond);