From e3bf3f208a50c76d9fb624ffe0c36fdf63c4446f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Date: Tue, 23 May 2023 12:34:33 +0200 Subject: [PATCH 04/21] target/s390x: Fix SRDA CC calculation MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit RH-Author: Cédric Le Goater RH-MergeRequest: 279: Backport latest s390x-related fixes from upstream QEMU for qemu-kvm in RHEL 8.9 RH-Bugzilla: 2169308 RH-Acked-by: Thomas Huth RH-Acked-by: Jon Maloy RH-Commit: [3/20] 95b2ba26003baa51f85f07e8860f875349c72b86 Bugzilla: https://bugzilla.redhat.com/2169308 commit 57556b28afde4b039bb12bfc274bd8df9022d946 Author: Ilya Leoshkevich Date: Wed Jan 12 17:50:13 2022 +0100 target/s390x: Fix SRDA CC calculation SRDA uses r1_D32 for binding the first operand and s64 for setting CC. cout_s64() relies on o->out being the shift result, however, wout_r1_D32() clobbers it. Fix by using a temporary. Fixes: a79ba3398a0a ("target-s390: Convert SHIFT DOUBLE") Signed-off-by: Ilya Leoshkevich Reviewed-by: David Hildenbrand Message-Id: <20220112165016.226996-3-iii@linux.ibm.com> Signed-off-by: Thomas Huth Signed-off-by: Cédric Le Goater --- target/s390x/tcg/translate.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c index dcc249a197..c5e59b68af 100644 --- a/target/s390x/tcg/translate.c +++ b/target/s390x/tcg/translate.c @@ -5420,9 +5420,11 @@ static void wout_r1_P32(DisasContext *s, DisasOps *o) static void wout_r1_D32(DisasContext *s, DisasOps *o) { int r1 = get_field(s, r1); + TCGv_i64 t = tcg_temp_new_i64(); store_reg32_i64(r1 + 1, o->out); - tcg_gen_shri_i64(o->out, o->out, 32); - store_reg32_i64(r1, o->out); + tcg_gen_shri_i64(t, o->out, 32); + store_reg32_i64(r1, t); + tcg_temp_free_i64(t); } #define SPEC_wout_r1_D32 SPEC_r1_even -- 2.37.3