Commit 51e3930f authored by Christophe Lyon's avatar Christophe Lyon Committed by Aurelien Jarno
Browse files

target-arm: fix unsigned 64 bit right shifts. 



Fix range of shift amounts which always give 0 as result.

Signed-off-by: default avatarChristophe Lyon <christophe.lyon@st.com>
Reviewed-by: default avatarPeter Maydell <peter.maydell@linaro.org>
Signed-off-by: default avatarAurelien Jarno <aurelien@aurel32.net>
parent b6c63b98

target-arm/neon_helper.c

+1 −1
Original line number Diff line number Diff line
@@ -639,7 +639,7 @@ uint32_t HELPER(neon_rshl_u32)(uint32_t val, uint32_t shiftop) 
uint64_t HELPER(neon_rshl_u64)(uint64_t val, uint64_t shiftop)

{

    int8_t shift = (uint8_t)shiftop;

    if (shift >= 64 || shift < 64) {

    if (shift >= 64 || shift < -64) {

        val = 0;

    } else if (shift == -64) {

        /* Rounding a 1-bit result just preserves that bit.  */