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[PULL,01/40] target/ppc: Fix TCG leak with the evmwsmiaa instruction

Message ID 20200818041922.251708-2-david@gibson.dropbear.id.au (mailing list archive)
State New, archived
Headers show
Series [PULL,01/40] target/ppc: Fix TCG leak with the evmwsmiaa instruction | expand

Commit Message

David Gibson Aug. 18, 2020, 4:18 a.m. UTC 
From: Matthieu Bucchianeri <matthieu.bucchianeri@leostella.com>

Fix double-call to tcg_temp_new_i64(), where a temp is allocated both at
declaration time and further down the implementation of gen_evmwsmiaa().

Note that gen_evmwsmia() and gen_evmwsmiaa() are still not implemented
correctly, as they invoke gen_evmwsmi() which may return early, but the
return is not propagated. This will be fixed in my patch for bug #1888918.

Signed-off-by: Matthieu Bucchianeri <matthieu.bucchianeri@leostella.com>
Message-Id: <20200727172114.31415-1-matthieu.bucchianeri@leostella.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 target/ppc/translate/spe-impl.inc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
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Patch

diff --git a/target/ppc/translate/spe-impl.inc.c b/target/ppc/translate/spe-impl.inc.c
index 36b4d5654d..42a0d1cffb 100644
--- a/target/ppc/translate/spe-impl.inc.c
+++ b/target/ppc/translate/spe-impl.inc.c
@@ -531,8 +531,8 @@  static inline void gen_evmwsmia(DisasContext *ctx)
 
 static inline void gen_evmwsmiaa(DisasContext *ctx)
 {
-    TCGv_i64 acc = tcg_temp_new_i64();
-    TCGv_i64 tmp = tcg_temp_new_i64();
+    TCGv_i64 acc;
+    TCGv_i64 tmp;
 
     gen_evmwsmi(ctx);           /* rD := rA * rB */