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authorPeter Maydell <peter.maydell@linaro.org>2010-12-07 14:13:43 +0000
committerAurelien Jarno <aurelien@aurel32.net>2010-12-27 21:07:10 +0100
commiteb7a3d7964f748ba815200372d7ff403737c54d7 (patch)
treec6a8eee0fc0527a8b5151351839adc660d047e0d /target-arm
parent4c9b70aeca70b3e0a68a771727f388551620b3ed (diff)
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target-arm: Fix VQSHL of signed 64 bit values by shift counts >= 64
VQSHL of a signed 64 bit non-zero value by a shift count >= 64 should saturate; return the correct value in this case. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Diffstat (limited to 'target-arm')
-rw-r--r--target-arm/neon_helper.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/target-arm/neon_helper.c b/target-arm/neon_helper.c
index d29b884..2dc3d96 100644
--- a/target-arm/neon_helper.c
+++ b/target-arm/neon_helper.c
@@ -608,7 +608,7 @@ uint64_t HELPER(neon_qshl_s64)(CPUState *env, uint64_t valop, uint64_t shiftop)
if (shift >= 64) {
if (val) {
SET_QC();
- val = (val >> 63) & ~SIGNBIT64;
+ val = (val >> 63) ^ ~SIGNBIT64;
}
} else if (shift <= -64) {
val >>= 63;