Patchwork [03/10] target-arm: Fix unsigned VRSHL.s8 and .s16 right shifts by type width

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Submitter Peter Maydell
Date Feb. 15, 2011, 1:44 p.m.
Message ID <1297777490-5323-4-git-send-email-peter.maydell@linaro.org>
Download mbox | patch
Permalink /patch/83247/
State New
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Comments

Peter Maydell - Feb. 15, 2011, 1:44 p.m.
From: Christophe Lyon <christophe.lyon@st.com>

Fix handling of unsigned VRSHL.s8 and .s16 right shifts by the type
width.

Signed-off-by: Christophe Lyon <christophe.lyon@st.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
---
 target-arm/neon_helper.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

Patch

diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index f692640..2930b5e 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -605,7 +605,7 @@  uint64_t HELPER(neon_rshl_s64)(uint64_t valop, uint64_t shiftop)
         tmp < -(ssize_t)sizeof(src1) * 8) { \
         dest = 0; \
     } else if (tmp == -(ssize_t)sizeof(src1) * 8) { \
-        dest = src1 >> (tmp - 1); \
+        dest = src1 >> (-tmp - 1); \
     } else if (tmp < 0) { \
         dest = (src1 + (1 << (-1 - tmp))) >> -tmp; \
     } else { \